[Escott1377]

Anybody ever heard these?  They seem to be all over EBay and are dirt cheap.  I bought the Musical Paradise DAC and these are listed as 1 of the tube options.  I am currently running WE 396 tubes with adapters and I am pretty set on their sound.  These just seem priced right to play around with.  Thanks in advance -

[AVnerdguy]

The US 6H^ is a double diode used for rectification and some AGC ckts. I don't think that's what they meant for audio output tubes. The RCA 6H6 won't fit in the socket on that board anyway. What I believe they mean is (from another post on the DYI audio site):

Cyrillic 6N6 looks exactly: 6H6.
But since it is in 9 pin glass envelope, it has P at the end (Pi), sop it is 6N6Pi.

Good double triode, and yes, it may be used in small output stage as well. When I was a teenager I used it in a driver stage of a guitar amp.

[Escott1377]

Thanks.  He makes good gear at great prices but his manuals leave something to be desired.

[FullRangeMan]

Anybody ever heard these?  They seem to be all over EBay and are dirt cheap.  I bought the Musical Paradise DAC and these are listed as 1 of the tube options.  I am currently running WE 396 tubes with adapters and I am pretty set on their sound.  These just seem priced right to play around with.  Thanks in advance -

If the owner manual recommend the 6H6 for the rectifier position there is no prob.

[AVnerdguy]

I thought they might mean rectifier also but the OP said he's using WE 396 and likes the sound. A double diode has no "sound" per se. A 396 is a 9 pin miniature tube base and the 6H6 is an 8 pin octal with key. Also the pin out of the 6H6 would not match a typical 5AR4/GZ34 or 5AU4 so it wouldn't be a typical rectifier sub. If looking for an "audio" tube then the 6N6P Russian 9 pin would be the most likely sub. Also - from the MP site:
Signal tubes:
Soviet 6H6 (stock), 6n11, 6H30, E88CC, 6922, 6DJ8.

[FullRangeMan]

Depend on the circuit, the famous 6C33 is a voltage regulator.