I have an old collection of working pull telefunken tubes and one of them is an ef86. I dont really have a need for that valve , im keeping the 6bq5s el84 the 12ax7 is just an ge. though are ef86 telefunken orginal 60s 70s dynaco pull work good in mic circuts? what is the value of such a tube. I might try the ef86 into a generic tube mic circut.
is it it a good valve I would gather it was used as maybe a phase inverter. took me a while to find it I think I might mentioned it in another thread.
is it it a good valve I would gather it was used as maybe a phase inverter. took me a while to find it I think I might mentioned it in another thread.