18Watt.com

Hey ... I got these for free.. well, an entire 70s 100W bass amp in fact. Echolette...
How can I check if they're ok to put in my 36W tremolo TMB?
And... are they some of the good ones from the past?

Telefunkens are good tubes,people go nuts for the ecc83’s on eBay! without a tube tester I would just put a pair in and monitor the bias voltage.
Send me a pair and i’ll test them on my HealthKit TC-3 but I might struggle getting them back to you!