This new old stock-testing DYNACO, Telefunken-made, 12AX7 / ECC83 tube was tested on our Maxi Matcher 2 with measurements:Gain 94.6 Section A / 97.1 Section B (DYNACO stenciled on glass with ECC83/12AX7 Made in West Germany)Transconductance: 1634 Section A / 1721 Section BOn the Maxi Matcher 2, 100% = 92, as a percentage tube is 103% / 105%Tube has gray ladder plates, top halo getter, very good DYNACO stenciling and Telefunken diamond on bottom of tube with code 16.Sound tested on our shop Antiques Sound Lab amp and performs great.There are more tube varieties so please view my eBay store for your equipment needs.Tubes ships via United States Postal Service (USPS) for domestic U.S. sale; Priority Mail is an option. International orders ship via eBay International Shipping.Package weighs eight (8) ounces. Combined shipping always welcomed.TUBES ARE GUARANTEED GOOD AND IN WORKING ORDER AT SHIPMENT. TRANSIT VIA POST CAN DAMAGE TUBES. THIS IS NO FAULT OF OURS BUT THE THIRD PARTY ENTITY THAT IS DELIVERING ITEM(S) TO YOU, I.E, USPS, UPS, FEDEX, YOUR NATIONAL CARRIER IF INTERNATIONAL, ETC. PLEASE INSURE THEM! WE CANNOT GUARANTEE FAILURES ON YOUR EQUIPMENT AFTER POWER UP AS THERE IS NO WAY TO ASCERTAIN HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS; NOR IS THERE A WAY TO DETERMINE WHETHER THEY MAY HAVE FATAL FLAWS IN TUBES THEMSELVES! THESE ARE USED VACUUM TUBES AND TIME MAY HAVE TAKEN A TOLL ON THEM OVER THE MANY YEARS SINCE THEY WERE MANUFACTURED. WE CAN ONLY TEST FOR THE PARAMETERS MENTIONED ABOVE IN ONE OR MORE OF THE FOLLOWING EQUIPMENT WE USE FOR MEASURING: TV-7/U, JACKSON 648 & MAXI MATCHER 2.

DYNACO DYNAKIT PREAMPLIFIER Mono 1950s Tubes 12ax7 Vintage HIFI I was not able to test this preamplifier. Selling as is .

PAIR MATCHED DYNACO ECC83 12AX7 TUBES TESTED ON MY TV-7D/U MIN 32 48/4646/46 NO SHORTS NO LEAKAGE IF YOU HAVE ANY QUESTION, PLEASE ASK BEFORE YOU BUY! THANKS FOR LOOKING! OUR POLICY WE MUST RECEIVE PAYMENT WITHIN 2 DAYS AFTER AUCTION ENDED.TEXAS BUYER WILL PAY 8.25% SALES TAX. WE USUALLY SHIP WITHIN 2-3 BUSINESS DAYS AFTER WE RECEIVED A CLEAR PAYMENT. WE ONLY SHIP TO PAYPAL CONFIRM ADDRESS. WE DON’T SHIP TO P.O/APO/AFO BOX. WE SHIP WORLDWIDE. EXTRA SHIPPING FEE WILL APPLY FOR ALASKA, HAWAII AND PUERTO RICO. PLEASE ASK BEFORE YOU BIDS OR BUY AN ITEM. IF YOU RECEIVED AN ITEM “NOT AS DESCRIBED”. PLEASE CONTACT US A.S.A.P AFTER YOU RECEIVED AN ITEM. SO, WE CAN RESOLVE THE PROBLEM. DEAR BUYER PLEASE CONTACT US BEFORE YOU SEND AN ITEM BACK OR LEAVE THE NEGATIVE FEEDBACK IF THE ITEM NOT AS DESCRIBED

PAIR MATCHED DYNACO ECC83 12AX7 TUBES TESTED ON MY TV-7D/U MIN 32 50/4447/47 NO SHORTS NO LEAKAGE IF YOU HAVE ANY QUESTION, PLEASE ASK BEFORE YOU BUY! THANKS FOR LOOKING! OUR POLICY WE MUST RECEIVE PAYMENT WITHIN 2 DAYS AFTER AUCTION ENDED.TEXAS BUYER WILL PAY 8.25% SALES TAX. WE USUALLY SHIP WITHIN 2-3 BUSINESS DAYS AFTER WE RECEIVED A CLEAR PAYMENT. WE ONLY SHIP TO PAYPAL CONFIRM ADDRESS. WE DON’T SHIP TO P.O/APO/AFO BOX. WE SHIP WORLDWIDE. EXTRA SHIPPING FEE WILL APPLY FOR ALASKA, HAWAII AND PUERTO RICO. PLEASE ASK BEFORE YOU BIDS OR BUY AN ITEM. IF YOU RECEIVED AN ITEM “NOT AS DESCRIBED”. PLEASE CONTACT US A.S.A.P AFTER YOU RECEIVED AN ITEM. SO, WE CAN RESOLVE THE PROBLEM. DEAR BUYER PLEASE CONTACT US BEFORE YOU SEND AN ITEM BACK OR LEAVE THE NEGATIVE FEEDBACK IF THE ITEM NOT AS DESCRIBED

PAIR MATCHED DYNACO ECC83 12AX7 TUBES TESTED ON MY TV-7D/U MIN 32 48/4846/52 NO SHORTS NO LEAKAGE IF YOU HAVE ANY QUESTION, PLEASE ASK BEFORE YOU BUY! THANKS FOR LOOKING! OUR POLICY WE MUST RECEIVE PAYMENT WITHIN 2 DAYS AFTER AUCTION ENDED.TEXAS BUYER WILL PAY 8.25% SALES TAX. WE USUALLY SHIP WITHIN 2-3 BUSINESS DAYS AFTER WE RECEIVED A CLEAR PAYMENT. WE ONLY SHIP TO PAYPAL CONFIRM ADDRESS. WE DON’T SHIP TO P.O/APO/AFO BOX. WE SHIP WORLDWIDE. EXTRA SHIPPING FEE WILL APPLY FOR ALASKA, HAWAII AND PUERTO RICO. PLEASE ASK BEFORE YOU BIDS OR BUY AN ITEM. IF YOU RECEIVED AN ITEM “NOT AS DESCRIBED”. PLEASE CONTACT US A.S.A.P AFTER YOU RECEIVED AN ITEM. SO, WE CAN RESOLVE THE PROBLEM. DEAR BUYER PLEASE CONTACT US BEFORE YOU SEND AN ITEM BACK OR LEAVE THE NEGATIVE FEEDBACK IF THE ITEM NOT AS DESCRIBED

PAIR MATCHED DYNACO ECC83 12AX7 (SMOOTH PLATE) TUBES MADE BY TELEFUNKEN TESTED ON MY TV-7D/U MIN 32 52/52 54/50 NO SHORTS NO LEAKAGE IF YOU HAVE ANY QUESTION, PLEASE ASK BEFORE YOU BUY! THANKS FOR LOOKING! OUR POLICY WE MUST RECEIVE PAYMENT WITHIN 2 DAYS AFTER AUCTION ENDED.TEXAS BUYER WILL PAY 8.25% SALES TAX. WE USUALLY SHIP WITHIN 2-3 BUSINESS DAYS AFTER WE RECEIVED A CLEAR PAYMENT. WE ONLY SHIP TO PAYPAL CONFIRM ADDRESS. WE DON’T SHIP TO P.O/APO/AFO BOX. WE SHIP WORLDWIDE. EXTRA SHIPPING FEE WILL APPLY FOR ALASKA, HAWAII AND PUERTO RICO. PLEASE ASK BEFORE YOU BIDS OR BUY AN ITEM. IF YOU RECEIVED AN ITEM “NOT AS DESCRIBED”. PLEASE CONTACT US A.S.A.P AFTER YOU RECEIVED AN ITEM. SO, WE CAN RESOLVE THE PROBLEM. DEAR BUYER PLEASE CONTACT US BEFORE YOU SEND AN ITEM BACK OR LEAVE THE NEGATIVE FEEDBACK IF THE ITEM NOT AS DESCRIBED

Pair of vintage Dynakit mono preamps I just have too many projects units the shelf and need to clear some room and pass them along to someone with the time or who can restore or build something cool in them. Good for vintage parts for restoration or repair These are untested and sold as is as found Good old fashioned no reserve, no returns auction with a penny start, they will go to the highest bidder They will ship well packed, Photos are of actual units for sale. Please check out my other auctions and add me to your favorite seller list so you don’t miss out on my vintage tube, electronic, and musical equipment listings. Thanks for looking and good luck! :)

TELEFUNKEN DYNACO CO-BRAND 12AX7 TUBE as pictured, circa 1968 (CQ coded) smooth plate, genuine Germany-made (diamond logo) in good condition (tested on my tube tester, where NOS tube normal ranged 105-110, min-good=65, max-good=120, tested tube= 102/103 respectively, no short, no leak) Since this item is highly “MISHANDLING SENSITIVE” it intends for professional (whom who know it well) and it is final (no return or refund) Please buy or bid accordingly. Thanks for looking.

I have a lot of four Dynaco/Telefunken 12AX7/ECC83 vacuum tubes. I tested them today on my calibrated TV-7D/U and with minimum of 32/32 they tested 49/48, 49/47, 45/45 and 45/42. Yes they all have the diamond on the bottom. $4.45 shipping in the US.

PAIR DYNACO ECC83 12AX7 (SMOOTH PLATE) TUBES MADE BY TELEFUNKEN TESTED ON MY TV-7D/U MIN 32 46/45 46/49 NO SHORTS NO LEAKAGE IF YOU HAVE ANY QUESTION, PLEASE ASK BEFORE YOU BUY! THANKS FOR LOOKING! OUR POLICY WE MUST RECEIVE PAYMENT WITHIN 2 DAYS AFTER AUCTION ENDED.TEXAS BUYER WILL PAY 8.25% SALES TAX. WE USUALLY SHIP WITHIN 2-3 BUSINESS DAYS AFTER WE RECEIVED A CLEAR PAYMENT. WE ONLY SHIP TO PAYPAL CONFIRM ADDRESS. WE DON’T SHIP TO P.O/APO/AFO BOX. WE SHIP WORLDWIDE. EXTRA SHIPPING FEE WILL APPLY FOR ALASKA, HAWAII AND PUERTO RICO. PLEASE ASK BEFORE YOU BIDS OR BUY AN ITEM. IF YOU RECEIVED AN ITEM “NOT AS DESCRIBED”. PLEASE CONTACT US A.S.A.P AFTER YOU RECEIVED AN ITEM. SO, WE CAN RESOLVE THE PROBLEM. DEAR BUYER PLEASE CONTACT US BEFORE YOU SEND AN ITEM BACK OR LEAVE THE NEGATIVE FEEDBACK IF THE ITEM NOT AS DESCRIBED

one preamp tube Dynaco 12AX7 ECC83 O getter tested like NOS READINGS measurements were made on a precisely calibrated Metrix U61DM with Va 250V, and -Vg1 2V Ia 1.2/1.1 mA where a new tube gives 1.2mA with Va 250V, and -Vg1 2V worldwide shipping with tracking in well made postal small parcel with and delivery against signature for 9 euros. possibility of grouping the delivery, see my other ads. Important Reminders: “You will get what you see in the pictures

ONE Dynaco West Germany ECC83 12AX7 OR 12AX7A Vacuum Tube TESTED ON MY HICKOK 539C TUBE TESTER MIN 875RESULTS: 1200 / 1400 AS IS. USED

Tested Pair of 12AX7A ECC83 Telefunken for Dynaco Audio Receiver Guitar Amplifier Power Vacuum Tubes Country of origin: West Germany One tube tests low on one side with some life left Production era: 1960s (estimate) Model: 12AX7 ECC83 Manufacturer: Telefunken Type: preamp Plate type: 17mm gray ladder Base type: 9 pins Spacers: two Getter frame: halo wire Getter flash: top Filaments: standard Glass: Clear with diamond base stamps Stencils: some wear Condition: excellent, same configuration Usage (estimate): minimal Quantity: 2 Please review the photos for more detail Test results: Strong to low test results for Gm: 1.35 / 1.8 and 1.65 / .9 (low but some life left) For Gm, the suggested minimum value is: 1.0 Shorts: None detected For testing, a calibrated Triplett 3444A tester was used Compatibility: Suitable for vintage tube-based equipment, ideal for use in radio amplifiers, preamps, and general audio equipment The tubes will be carefully packed to ensure safe shipping Estimated delivery time within the USA is 3 to 7 business days Standard shipping service is US Postal 1st class Shipping is combined when applicable Please feel free to contact us if you require any additional information