Description: Excellent Pair of 1960's Telefunken ECC83/12AX7 "A" Stamped, Select "Recording Grade" diamond bottom, smooth plates pair.Very good labels. These are rare factory selected tubes, found in the record stage of electronics. Tubes with an A stamped at the factory on the glass near the bottom. One A is a bit faded.Made in W. Germany.Test 1400/1400 & 1630/1460 for gm where 1000 is goodand 1.4/1.2 & 1.4/1.2 ma for plate current, at 250 volts in a Triplett 3444/Westmore 501 laboratorytube analyzer restored and upgraded by Paul Hart.Listening tested for excessive noise and microphonics in a Maxi-preamp 2 noise tester.All tubes are guaranteed good or may be returned. Shipping includes insurance.Please see our other items for more vintage tubes & audio.We combine orders for shipping.We do not change values for customs. Thank You.
Price: 200 USD
Location: Northampton, Massachusetts
End Time: 2024-09-03T00:44:17.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: TELEFUNKEN
Type: ECC83
Model: Telefunken 12AX7 ECC83
Country/Region of Manufacture: Germany
