2 legendary old stock siemens germany e188cc audiophile tubes, quite rare first edition warmthsuperb e88cc/6922 bass upgrade, wettest most sought after grail ranked 2nd/3rd harmonicsauthentic germany g-phi build codes and balanced mutual gm triodes, preamp illuminatorunparalleled birds eye view spatial instrument separation, sublime vocal resolveaudio grade phono ready w/ one of a kind special proprietary cali refurbish processcollector stock carefully curated, premium long life low noise 6d8 ecc88 w/ more lowend bassincludes rca or siemens boxes (your choice) ships fast well packed worldwide ~authentic vintage audiophile collectibles by cali acoustics~ 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 audiophile 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 (we dont relabel tubes, fragile oe labels only)

2 legendary old stock siemens germany e188cc audiophile tubes, 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 (last 2 left in stock!) (closest ranked harmonics to pinched amperex pq?!) ~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!

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!

Up for auction is one pair rare early 1960S NOS Siemens 6922/E88CC tubes , Germany made .This pair tubes have the Gray Shield , Golden pins , and the same etched code “ A?1?3I “ , by this etched code , this pair tubes should be made in September , 1963 by Siemens Germany factory . and also the same batch code 34 018 , but the printing are worn off much , see scan . it’s the famous E88CC / CCa version for audio . No original boxes . The tubes tested very strong ,The tested value ( emission current ) : 17.0mA/19.3mA and 19.1mA/16.3mA .The test condition : Va : 90 VDC , Vg : -1.2 VDC , Vf : 6.3 VDC , and Burn up around 10~15 minutes to stabilize for testing .For a new E88CC tube , the emission current is around 15mA/15mA . Please note : Buyer pay for the customs fees , taxes .. < Shipping > Buyer pay additional $15 USD for registered air-parcel worldwide . No insurance , if need insurance , please contact us to ask before bidding . Combine shipping is possible .

Up for auction is one pair rare early 1960S NOS Siemens 6922/E88CC tubes , Germany made .This pair tubes have the Gray Shield , Golden pins , and the same etched code “ A?1?3I “ , by this etched code , this pair tubes should be made in September , 1963 by Siemens Germany factory . and also the same batch code 34 018 , but the printing are worn off much , see scan . it’s the famous E88CC / CCa version for audio . No original boxes . The tubes tested very strong ,The tested value ( emission current ) : 17.0mA/19.3mA and 19.1mA/16.3mA .The test condition : Va : 90 VDC , Vg : -1.2 VDC , Vf : 6.3 VDC , and Burn up around 10~15 minutes to stabilize for testing .For a new E88CC tube , the emission current is around 15mA/15mA . Please note : Buyer pay for the customs fees , taxes .. < Shipping > Buyer pay additional $15 USD for registered air-parcel worldwide . No insurance , if need insurance , please contact us to ask before bidding . Combine shipping is possible .

Up for auction is one pair rare early 1960S NOS Siemens 6922/E88CC tubes , Germany made .This pair tubes have the Gray Shield , Golden pins , and the same etched code “ A?1?3I “ , by this etched code , this pair tubes should be made in September , 1963 by Siemens Germany factory . and also the same batch code 34 018 , but the printing are worn off much , see scan . it’s the famous E88CC / CCa version for audio . No original boxes . The tubes tested very strong ,The tested value ( emission current ) : 17.0mA/19.3mA and 19.1mA/16.3mA .The test condition : Va : 90 VDC , Vg : -1.2 VDC , Vf : 6.3 VDC , and Burn up around 10~15 minutes to stabilize for testing .For a new E88CC tube , the emission current is around 15mA/15mA . Please note : Buyer pay for the customs fees , taxes .. < Shipping > Buyer pay additional $15 USD for registered air-parcel worldwide . No insurance , if need insurance , please contact us to ask before bidding . Combine shipping is possible .

Up for auction is one pair rare early 1960S NOS Siemens 6922/E88CC tubes , Germany made .This pair tubes have the Gray Shield , Golden pins , and the same etched code “ A?1?3I “ , by this etched code , this pair tubes should be made in September , 1963 by Siemens Germany factory . and also the same batch code 34 018 , but the printing are worn off much , see scan . it’s the famous E88CC / CCa version for audio . No original boxes . The tubes tested very strong ,The tested value ( emission current ) : 17.0mA/19.3mA and 19.1mA/16.3mA .The test condition : Va : 90 VDC , Vg : -1.2 VDC , Vf : 6.3 VDC , and Burn up around 10~15 minutes to stabilize for testing .For a new E88CC tube , the emission current is around 15mA/15mA . Please note : Buyer pay for the customs fees , taxes .. < Shipping > Buyer pay additional $15 USD for registered air-parcel worldwide . No insurance , if need insurance , please contact us to ask before bidding . Combine shipping is possible .

Up for auction is one pair rare early 1960S NOS Siemens 6922/E88CC tubes , Germany made .This pair tubes have the Gray Shield , Golden pins , and the same etched code “ A?1?3I “ , by this etched code , this pair tubes should be made in September , 1963 by Siemens Germany factory . and also the same batch code 34 018 , but the printing are worn off much , see scan . it’s the famous E88CC / CCa version for audio . No original boxes . The tubes tested very strong ,The tested value ( emission current ) : 17.0mA/19.3mA and 19.1mA/16.3mA .The test condition : Va : 90 VDC , Vg : -1.2 VDC , Vf : 6.3 VDC , and Burn up around 10~15 minutes to stabilize for testing .For a new E88CC tube , the emission current is around 15mA/15mA . Please note : Buyer pay for the customs fees , taxes .. < Shipping > Buyer pay additional $15 USD for registered air-parcel worldwide . No insurance , if need insurance , please contact us to ask before bidding . Combine shipping is possible .