Hello – I have a matched pair of Sylvania Tall Bottle Chrome Top 6SN7GTB ECC33 tubes for sale.
These tubes have triangular black plates and top foil getters. They were
made in the late 1950's.
TV-7/B test results: 105/105 and 95/102. Minimum is 50.
They have also been checked for noise and microphonics in the phono stage of my DIY pre-amp and are dead quiet.
All tubes are tested on my calibrated TV-7/B or on my calibrated
Hickok 539C. All of these tubes have been tested for transconductance,
shorts, gas, leakage and life. All tubes meet or exceed manufacturer
published specifications of transconductance (Gm) for the specified tube
type. All tests are tested twice – prior to the listing and prior to
Please check out my other ad’s on Audiogon.
If you don’t see the tubes you are looking for, please contact me.
Be sure and click on the “other items’ link for more tubes.
I will ship international.
Shipping is $6 in the USA. Canadian shipping is $16.00 and international shipping is $20.00.
Your tubes will be carefully packed.
No charge for paypal. I also accept money orders and personal checks.
Please check my feedback and buy with confidence.