1 x legendary old stock siemens germany e188cc audiophile tube, quite rare cali exclusivesuperb e88cc/6922 bass upgrade! wettest first-run most sought after grail ranked harmonicsauthentic germany g-phi build codes and balanced mutual gm triodes, warmest grey mica 60s!audio grade w/ one of a kind special proprietary cali refurbish processships fast! worldwide w/ old or new rca or siemens tube boxes ~authentic vintage audiophile collectibles by cali acoustics~ (nos tubes require up to 100+ hours to truly settle in, otherwise you are likely buying used)(be aware of relabelers/reprinters especially cca!) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 verified apps include:preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk mono blocks + many more!

quite rare 1-year only old stock siemens e88cc / 6922 cca audiophile tube, cali exclusive!authentic 60s build code, upgraded premium internals w/ e188cc 7308 imaging!? one of a kind professional edition, legendary transparency anniversary edition collectiblesuperb tone upgrade for mics amps stereos vocals instruments and morebalanced nos+ mutual gm 115/115% (+100=nos) audio grade w/ special proprietary cali refurb processships fast! worldwide w/ siemens tube box ~authentic vintage audiophile collectibles by cali acoustics~ (nos tubes require up to 100+ hours to truly settle in, otherwise you are likely buying used)(be aware of relabelers/reprinters especially cca!) current inventory includes:6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc12ax7 12au7 12at7 12ad7 (new) / ecc83 ecc82 ecc81 6201 (new)6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 verified apps include:preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk mono blocks + many more!

2x E188CC Siemens Röhre Tube grey shield Amplifier =CCa E88CC 7308 same codes.

SIEMENS E188CC/6922 same code GREY PLATTE 0 disc getterValves are tested. I have a HICKOK TV-3C/U tube tester .The measurements are of mutual conductance.The measures are REAL and are the average of five measurements.The object is to get the picture. The 100% of the tube is equal to 2500 micromhos.TUBE A 2000/2100 TUBEB 1800/1950 The valves were selected and output coupled at the following frequencies 20, 56, 125,320,750.2 k, 5 k, 12 k, 20.2 k. See the photos Attention please Read the following carefully before making purchases. I do not accept the return of the object for any reason. I repeat no reason. If your intention is to buy you must accept this condition. At the end of the auction do not make the payment. I will send you photos of how your valves will be packed. If you think the packaging is insufficient You can ask for the cancellation of the transaction that will be accepted by me.

Aus alten Sammlungsbestand abzugeben: E188CC ( 7308 ) Siemens &Halske , München Charge: 07061!. Neu, Originalverpackungen Optischer Zustand siehe Bilder, teil der Beschreibung. Aufgrund des Alters keine Garantie auf Funktion. Dies ist ein Privatverkauf, keine Rücknahme , keine Garantie .Irrtümer vorbehalten. Kosten für die Rücksendung trägt der Käufer.Mit Abgabe des Gebotes haben Sie die Bedingungen akzeptiert., From old collection to give: E188CC ( 7308) Siemens&Halske, vintage germany tubes! New, own box, NIB.Make your offer. Optical condition see pictures, part of the description. Due to age no guarantee on function. This is a private sale, no return , no warranty . The buyer bears the return postageBy placing a bid you have accepted the conditions.Shipment only germany/ EU. Currently no shipping to Russia.

1 x balance matched siemens germany e188cc, authentic labels/codesthe warmest most musical ones to hear/own/collect!e88cc/6922/cca upgrade w/ more low end bass and wetter stage harmonicsships w/ siemens box worldwide well packed fast ~cali acoustics~~see our other listings for alternate listening positions! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram live / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca ~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81 ~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34 (new!) ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

DO YOU REMEMBER ME? I´M ANTONIO FROM MY ANOTHER SHOP AD1ELECTRONICS... This is our another account.... ;-) Look at our votes in our another Store ... 11 TUBES TESTED GOOD ON TV7DU PLEASE LOOK THE PHOTO!!!!!!WILL SHIP TO WORLDWIDE!! SALE WHAT YOU SEE IN THE PICTURES. NO RETURNS ALLOWED. COMBINE SHIPPING. FOR ANY QUESTIONS, CONTACT US.Due to the fact that by certified mail for the United States and Canada, the tracking and shipping update is very slow and was sent out of time, the shipment from now on will be sent through a Fedex affiliate, so the shipment It is more expensive. But it meets the deadlines and maintains a tracking update, insured the content and delivered with signature to the recipient.

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED PAIR 2 Pcs NOSEXTRA BALANCED !!! EXTRA MATCHED !!!NOS Siemens Halske CCa = E88CC 6922 Grey-Shield HOLY GRAILS 1963 and 1964ACID CODES :Code: A? 1? 3A and A? 1? 4E O-getter,one stage geter ,gray shield ,The gray shieldSTA do you think how many CCa tubes of this type needed to be measured to select this pair?MUCH MORE THAN YOU THINK !!! Probably no one in this world has a pair of CCs like this because there are NO more of them !!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 2 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% tubes Ia = 20/19mA and Ia = 19/20 mA

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED QUAD 4 Pcs NOS Code: tubes A6 / 4G and A6 / 3I and A6 /4I and A6 / 4CO-getter,A-frame ,The chrome shieldMany e88cc tubes needed to pair this pair matched to several criteria: date of production - same series and electrical characteristics. such pairing is rareEXTRA MATCHED QUAD !!! EXTRA RARE!!!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 4 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% two tubes Ia = 15/14 mA and two tubes Ia = 15/15 mA

2 grail siemens germany e188cc/7308 audio tubesbest type to hear/collect, wettest of all siemens / closest to pinchedrare e88cc/6922/cca upgrade w/ longer life lower noise rugged stabilizer plate internalsnos balanced 126/128~114/108 % mutual gm (100+nos) ~cali acoustics~~see our other listings for alternate listening positions! bid/buy/best offer~ ~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram live / caliacoustics.com (soon!)~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca ~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81 ~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34 (new!) ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

Aus alten Sammlungsbestand abzugeben: E188CC ( 7308 ) Siemens &Halske , München Charge: 07061!. Neu, Originalverpackungen Optischer Zustand siehe Bilder, teil der Beschreibung. Aufgrund des Alters keine Garantie auf Funktion. Dies ist ein Privatverkauf, keine Rücknahme , keine Garantie .Irrtümer vorbehalten. Kosten für die Rücksendung trägt der Käufer.Mit Abgabe des Gebotes haben Sie die Bedingungen akzeptiert., From old collection to give: E188CC ( 7308) Siemens&Halske, vintage germany tubes! New, own box, NIB.Make your offer. Optical condition see pictures, part of the description. Due to age no guarantee on function. This is a private sale, no return , no warranty . The buyer bears the return postageBy placing a bid you have accepted the conditions.Shipment only germany/ EU. Currently no shipping to Russia. China/Asia welcome at time.Other countries request before.

10 rare authentic vintage e188cc e88cc 7308+audio tubes, lot for parts/display!real etch codes real labels! philips valvo siemens+more, collectible types/limited run story tellers ~see our other listings for alternate listening position experiences! bid/buy/best offer~~cali acoustics~ vintage hifidelity vacuum tube pro audio / warm bright lofi hifi tonecaliacoustics instagram (live) / caliacoustics dot com (soon) ~ 6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc ~~ 12ax7 12au7 12at7 / ecc83 ecc82 ecc81 ~~ 6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85 ~ 6ca7 el34 ~ ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audioresearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk + more apps!~

2 grail grey mica siemens e188cc audio tubes, the old best versions to hear/collect period!famed for lowest distortion / low end boost over e88cc/6922 design / wettest of all siemens tones126/128 ~ 114/108 % mutual gm (100+nos/65+good) ~see our other listings for alternate listening positions! bid/buy/best offer~~vintage hifidelity tone / vacuum tube pro audio / warm bright lofi hifi~caliacoustics instagram live / caliacoustics.com (soon!)~~cali acoustics~ ~6dj8 7dj8 6922 7308 / ecc88 pcc88 e88cc e188cc cv2492 cca ~~12ax7 12au7 12at7 / ecc83 ecc82 ecc81 ~ ~6bq5 el84 ~ 6267 ef86 ~ 6aq8 ecc85~ 6ca7 el34 (new!) ~preamps stereos vocals instruments mics rode k2/ntk audio technica at-4060 bluemics wooaudio liquidplatinum aesthetix cat audiotesearch arc echo ear herron decco lector manley horizons conrad frontiers pathos marantz vac psaudiobhk +more apps~

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED QUAD 4 Pcs NOS Code: tubes A6 / 4G and A6 / 3I and A6 /4I and A6 / 4CO-getter,A-frame ,The chrome shieldMany e88cc tubes needed to pair this pair matched to several criteria: date of production - same series and electrical characteristics. such pairing is rareEXTRA MATCHED QUAD !!! EXTRA RARE!!!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 4 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% two tubes Ia = 15/14 mA and two tubes Ia = 15/15 mA

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED PAIR 2 Pcs NOSEXTRA BALANCED !!! EXTRA MATCHED !!!NOS Siemens Halske CCa = E88CC 6922 Grey-Shield HOLY GRAILS 1963 and 1964ACID CODES :Code: A? 1? 3A and A? 1? 4E O-getter,one stage geter ,gray shield ,The gray shieldSTA do you think how many CCa tubes of this type needed to be measured to select this pair?MUCH MORE THAN YOU THINK !!! Probably no one in this world has a pair of CCs like this because there are NO more of them !!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 2 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% tubes Ia = 20/19mA and Ia = 19/20 mA

SIEMENS E188CC/6922 same code GREY PLATTE 0 disc getterValves are tested. I have a HICKOK TV-3C/U tube tester .The measurements are of mutual conductance.The measures are REAL and are the average of five measurements.The object is to get the picture. The 100% of the tube is equal to 2500 micromhos.TUBE A 2000/2100 TUBEB 1800/1950 The valves were selected and output coupled at the following frequencies 20, 56, 125,320,750.2 k, 5 k, 12 k, 20.2 k. See the photos Attention please Read the following carefully before making purchases. I do not accept the return of the object for any reason. I repeat no reason. If your intention is to buy you must accept this condition. At the end of the auction do not make the payment. I will send you photos of how your valves will be packed. If you think the packaging is insufficient You can ask for the cancellation of the transaction that will be accepted by me.

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED QUAD 4 Pcs NOS Code: tubes A6 / 4G and A6 / 3I and A6 /4I and A6 / 4CO-getter,A-frame ,The chrome shieldMany e88cc tubes needed to pair this pair matched to several criteria: date of production - same series and electrical characteristics. such pairing is rareEXTRA MATCHED QUAD !!! EXTRA RARE!!!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 4 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% two tubes Ia = 15/14 mA and two tubes Ia = 15/15 mA

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED PAIR 2 Pcs NOSEXTRA BALANCED !!! EXTRA MATCHED !!!NOS Siemens Halske CCa = E88CC 6922 Grey-Shield HOLY GRAILS 1963 and 1964ACID CODES :Code: A? 1? 3A and A? 1? 4E O-getter,one stage geter ,gray shield ,The gray shieldSTA do you think how many CCa tubes of this type needed to be measured to select this pair?MUCH MORE THAN YOU THINK !!! Probably no one in this world has a pair of CCs like this because there are NO more of them !!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 2 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% tubes Ia = 20/19mA and Ia = 19/20 mA

Aus alten Sammlungsbestand abzugeben: E188CC ( 7308 ) Siemens &Halske , München Charge: 07061!. Neu, Originalverpackungen Optischer Zustand siehe Bilder, teil der Beschreibung. Aufgrund des Alters keine Garantie auf Funktion. Dies ist ein Privatverkauf, keine Rücknahme , keine Garantie .Irrtümer vorbehalten. Kosten für die Rücksendung trägt der Käufer.Mit Abgabe des Gebotes haben Sie die Bedingungen akzeptiert., From old collection to give: E188CC ( 7308) Siemens&Halske, vintage germany tubes! New, own box, NIB.Make your offer. Optical condition see pictures, part of the description. Due to age no guarantee on function. This is a private sale, no return , no warranty . The buyer bears the return postageBy placing a bid you have accepted the conditions.Shipment only germany/ EU. Currently no shipping to Russia. China/Asia welcome at time.Other countries request before.

SIEMENS E188CC/6922 same code GREY PLATTE 0 disc getterValves are tested. I have a HICKOK TV-3C/U tube tester .The measurements are of mutual conductance.The measures are REAL and are the average of five measurements.The object is to get the picture. The 100% of the tube is equal to 2500 micromhos.TUBE A 2000/2100 TUBEB 1800/1950 The valves were selected and output coupled at the following frequencies 20, 56, 125,320,750.2 k, 5 k, 12 k, 20.2 k. See the photos Attention please Read the following carefully before making purchases. I do not accept the return of the object for any reason. I repeat no reason. If your intention is to buy you must accept this condition. At the end of the auction do not make the payment. I will send you photos of how your valves will be packed. If you think the packaging is insufficient You can ask for the cancellation of the transaction that will be accepted by me.

1 x old stock vintage siemens germany 7308 *e188cc audiophile tubehifidelity 60s! warmth transparency musicality reference grade tonalitypremium 6922/e88cc upgrade! rugged build famed low end/ceiling frequencieshard to find collectible early production w/ holographic imagingships worldwide w/siemens tube box well packed ~cali acoustics~~see our siemens ecc88/6dj8 e88cc/6922 listings for alternate sound curves~ ~vocals instruments preamps tubemics stereos lofi/hifi warm/bright 6922 6dj8 apps~~liquid platinum woo audio aesthetix cat audioresearch arc ear herron decco lector manley horizons rodemics bluemics conrad frontiers pathos vac and more!~

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED PAIR 2 Pcs NOSEXTRA BALANCED !!! EXTRA MATCHED !!!NOS Siemens Halske CCa = E88CC 6922 Grey-Shield HOLY GRAILS 1963 and 1964ACID CODES :Code: A? 1? 3A and A? 1? 4E O-getter,one stage geter ,gray shield ,The gray shieldSTA do you think how many CCa tubes of this type needed to be measured to select this pair?MUCH MORE THAN YOU THINK !!! Probably no one in this world has a pair of CCs like this because there are NO more of them !!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 2 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% tubes Ia = 20/19mA and Ia = 19/20 mA

CCa E88CC E188CC 6922 SIEMENS HALSKE MUNICH GERMANY MATCHED QUAD 4 Pcs NOS Code: tubes A6 / 4G and A6 / 3I and A6 /4I and A6 / 4CO-getter,A-frame ,The chrome shieldMany e88cc tubes needed to pair this pair matched to several criteria: date of production - same series and electrical characteristics. such pairing is rareEXTRA MATCHED QUAD !!! EXTRA RARE!!!This version with gold pins is professional and allows work of 10000 hours !!!!It is very difficult to pair 4 tubes and to keep each of them balanced. Before recording the characteristics, all CC tubes are aged for 72 hours in a specially made device and then tested and selected. For these 4 tubes it took over 50 tubes to select a that, you will admit it is very difficult. and theres no need to brag about those tubes - take a look on the net and everything will be clearwhy do I have to age them for 72 hours. Since I give the electrical characteristics of the tubes and for that to be correct, the CC tubes must be forced to work for at least 48 hours in order to equalize the working mode and only then the characteristics are recorded. the current Ia measured on that occasion does not have to be 16 mA and that is 100%, they can be higher and lower, within some limits - there are some on the NET, but it is important that the triodes in the balloon tubes CCa are as uniform as possible . And thats except Ia - mA quality which is primary for me and as a third reference, if I can, give the code .its nice to be harmonized due to the later exploitation of tubes-10000 hours.They are also tested for gas, short and leakageNote: The measurements were carried out with Neuberger RPM370 saw and guarantee for this measurement. The tester has its technical and electrical characteristics that participate in the activities and measuring tubes. Each tube is a special electric circuit that works in conjunction with the saw and this gives measured values. Power saws with classic rectifier and everything else and it has its own impedance, etc ... Digital testers can not give the same measurement results as the classical tester for impedance, reactance, capacitance, conductance, the mode power supply - Switching etc . Tested for NEUBERGER RPM370,Ua=100V,Ug=-1.2V,Ig=16mA=100% two tubes Ia = 15/14 mA and two tubes Ia = 15/15 mA

Two Siemens E188CC 7308 tubes. Both have O getters. Date codes are G6 8A & G6 8B on metal tabs inside. Both have N82 number code on them. Tested on my TV-7/U where min good is 50/50. New is 77/77. Tubes = 118/above 120 and 92/above 120. No shorts or gas. Check pictures, use zoom. Combined shipping available to reduce shipping costs. Check out my other store items. (EL34 box, DS)