6P3S Vs 6L6 and 6V6

[Kagliostro]

I got a pair of 6П3С (6P3S) tubes (not the 6П3С-E (6P3S-E) version which is claimed to be a 5881) and a pair of 6П6С (6P6S) tubes

the 6П3С (6P3S) tubes are claimed to be 6L6 correspondent tubes

the 6П6С (6P6S) tubes are claimed to be 6V6 correspondent tubes

but sometime I've read that the 6П3С (6P3S) tubes are in the middle between 6L6 and 6V6 tubes

and not exactly substitutes for 6L6

http://tdsl.duncanamps.com/link.php?target=0A2596CD

http://tdsl.duncanamps.com/link.php?target=0925A3AF

http://www.tubes.ru/techinfo/HiFiAudio/6p3s.html

What do you think about ?

Someone has experience with this russian tubes ?

Thanks

K

[Stevem]

The curves will always tell the truth!

[Synchu]

For 6P3S:
You don't need to go too much further than the datasheet to identify the differences.
I don't really understand what would mean between 6L6 and 6V6, but at least the -E designations are very good sounding and sturdy tubes. I use them in a number of builds.
One of these is putting 494V on the plates - 250V is the datasheet max - they sound great, do not seem to wear faster than the others and hence I would classify them as "withstanding significant abuse".
6P6S should be handled with a bit more care There are excellent batches and crap. If you have the luck (and good vendor that tests what they offer) they do withstand a lot of abuse and sound excellent. They do sound great both in my Tweedle Dee build (with nearly 400V at the plates) and my 5b6/5b3 mix build.

I am so happy with them, that I have slowly built some (small) stock of these, just in case the prices skyrocket, as it seems with everything vintage lately.

Niki

[Phil_S]

I put a pair of 6p3s (not 6p3s-e) in the 5B6 I built and they seem like good tubes. For $3 a pop, what's not to like? Would other tubes sound better? Honestly, I didn't try any, so I don't know. One thing is for sure, they sound decent.

To set things in context, check Martin's recent thread in Garage Talk. After you put a few years on your ears, it is harder to tell the difference.

[Leo_Gnardo]

Groove marketed 6P3S as "super 6V6" or something like that back in the 1980's. Of course they didn't mention twice the filament current plus a need to re set bias. It was dismaying to those who knew what they were, that GT was asking, and getting, big $$ for very cheap tubes, plus having to spend our time explaining to enthusiastic buyers that they'd spent their $$$ on tubes that weren't all that special & had no magic properties. "Oh those again, feh!" Other marketers tried to sell 'em too, I have a pair with blue glass in "Audio Glassics" boxes. There's also a Chinese made version that looks and acts much the same.

[Kagliostro]

Thanks to ALL for answers

Prices of the 6П3С-E (6P3S-E) have already increased and the lower price now is ~13.00€ (plus shipping)

the 6П3С (6P3S) are a bit less high and I've find for 5.00€ (at Ham Fest)

as always, vintage things increases their value when people ask for them

K

[tubeswell]

6P3Se are good tubes and can routinely withstand up to around 460 on the plates. They sound okay and are rated at 20.5W plate dissipation, but can be run as 25W tubes.

The 6P3S are rated as 20W tubes. But I wouldn't run them higher than 350 myself - they don't seem to last as long (based on my own experience). The internal construction is different from the 6P3Se.

[Kagliostro]

Thanks Tubeswell

Yesterday at an Ham Fest I got this other cousins of the 6L6, 6 x 1625 tubes

[img1717]http://i.imgur.com/aosQM8X.jpg[/img]

Ciao

Franco

[rp]

So now you have to build something w/ them. Hopefully something rockin' and not a transmitter

I have some 807s, if I ever do a 5B6 they will probably go in that, just for shits and giggles.

[Kagliostro]

In my mind I've a pair of projects

a modified version of a 5C1

something like

V1 one triode of 6SL7 (or 6SN7)

V2 a 6J7 (or 6SJ7)

V3 one triode of 6SL7 (or 6SN7) as Catode Follower

Tone Stack ( a James )

V4 a 1625

and a Gibson GA-80 Varitone with

6SN7 instead of 12ax7

6J7 instead of 5879

and 1625 instead of 6L6

(Only one channel - no tremolo)

[img2459]http://i.imgur.com/NUdbXOX.jpg[/img]



K