6v6 related tubes [Archive]

tropicalfishcap

12-10-2008, 09:48 AM

I just got a used THD Bi-Valve and a good assortment of tubes to play with. I was really liking the 6v6 tubes and was wondering what other tubes would work in this amp. The website just says switch to LO-V setting when using the 6v6 class tubes. My question more directly is what falls into the 6v6 class. A 6G6 and 6K6 came as extra tubes. This amp can be anywhere from 2.5 watts all the way to 30 watts depending on the tubes. I'd like to drop it down as far as I can go for bedroom levels and up from there as I need it. Thanks

evacuated

12-10-2008, 10:09 AM

6F6g will work also, and is a very nice old tube.
Here's a great site for looking up tube data.
This link will take you to a page of tube types with the same base (7AC) as the 6v6/6l6 family.
http://www.nj7p.org/Tube4.php?base=7AC

Structo

12-10-2008, 10:13 AM

According to my Duncan Tube Data Program these are 6V6 derivatives.

6v6, G, GT, GTA, GTY, GY.
6AY5
5871
7408
7184
CV510
CV511
VT107

cjr020

12-11-2008, 06:07 AM

OK. Don't flame me, but I've got to ask: Is it safe to use ANY of these "similar characteristic" tubes as a direct replacement for the 6V6s in my Deluxe Reverb? Or are there other considerations that must be taken into account? And, if so, please help me understand more.

Thanks!

Blue Strat

12-11-2008, 06:44 AM

cjr020

12-11-2008, 08:15 PM

Understood.

Thanks, Mike!

nitehawk55

12-11-2008, 08:41 PM

If you want a good sounding and indestructable 6V6 tube get some Bendix 5992's , not cheap but will last forever . I'm betting these will handle higher voltages .

tropicalfishcap

12-12-2008, 09:57 AM

thanks Evacuated and Structo. that's what I needed to know

jay42

12-12-2008, 11:22 AM

I'm not aware of anything similar to a 6V6 than will handle over 400V on the plates which is what the DR will provide.I have a Stromberg-Carlson phonograph amp from either the 40's or 50's (probably 50's) which originally put 465V across 2x 6F6s with a 5Y3, cathode biased p-p, originally with a 350 ohm (I changed it to a 450 ohm). As long as I've had it (1967), it's always had 6V6s in it. I don't know if it's worth it to find some 6F6s. Mike?

mc5nrg

12-12-2008, 12:35 PM

Dumb question here....what happens if I put a 6F6 in a BF Vibrochamp?

Old Tele man

12-12-2008, 08:42 PM

FYI -- 6F6 is a true pentode, while 6V6 is a beam tetrode

Blue Strat

12-13-2008, 01:13 PM

I have a Stromberg-Carlson phonograph amp from either the 40's or 50's (probably 50's) which originally put 465V across 2x 6F6s with a 5Y3, cathode biased p-p, originally with a 350 ohm (I changed it to a 450 ohm). As long as I've had it (1967), it's always had 6V6s in it. I don't know if it's worth it to find some 6F6s. Mike?

Not sure. What's the max spec on those and what's the cathode voltage? You have to subtract that from the plate voltage.