One Russian tube 6P3S is broken....

[azazello]

I need Your help.....!
Last year I made for my daughter /in Michigan/ SE 6P3S.
After removing to San Diego, one tube was broken. Now I'm in San Diego for 2 weeks and I must replace it, but I have not the same.
I need 2 or 1 of them. Please, if someone has, send me, to fix her amplifier! I have short time.
Thanks in advance!
Nikola

[dcriner]

Google "6P3S vacuum tube" for internet sources. It's equivalent to a 6L6: http://www.thetubestore.com/Tubes/6L6-5881-Tube-Types

[kheper]

Jim McShane sells them.

http://www.mcshanedesign.net/tubes.htm

However, he declares that they have "tilted bottles".

"Only after this thorough testing will they be shipped to a purchaser! Tubes that fail are discarded.

As of 8/1/13 I have no cosmetically perfect tubes left, and only about 30 tilted bottles in stock.

Cosmetically challenged 6P3S-Es! I've got some of these electrically perfect tubes - with tilted bottles. You don't mind the tilt?

Then save yourself some money! Just $12.50 for singles, $25.50 for matched pairs, or $52.50 for matched quads."


There are many sources on ebay which sell them, but the shipping is 3 weeks or longer.

[EWBrown]

I'll have to check the "stash"- I think I have a couple extra 6P3S, I can send you if I can find them.

Will advise shortly....

(update, just a few minutes later)

I just found them, and will test before sending, these two are from the same Russian manufacturing lot.
No tilted bases, these have the newer style flat "coin" octal base.

That way you can save the "old" one for a spare.

Send me the mailing address via private message (PM) , and I'll get them out to you.


/ed B

[azazello]

Thanks very much!
You have PMs. /how much it will be cost?/
It's the best variant for me.
And I will buy some cheep voltmeter and maybe solder and pair of cathode resistors from Radio shake.
Best regards!

[EWBrown]

The ones I have are the better version, the original smaller size 6P3S was like 6L6GB, these are the 6P3S-EV, marked as 6L6WGC / 5881, they will well work in your circuit, perhaps better than the smaller older versions.

Refer to this article, http://www.glowbugs.info/search/label/6P3S


In the article, there is a photo of the three variants of 6P3S, these are the one on the right most side.



They are on their way to you today!

/ed B

[azazello]

The tube from right /6P3S-E/ is not like in amplifier.
Maybe I'm not right, it max. +U is about 260 v.
Thanks very much!!

[azazello]

Hi, Ed!
Today I received tubes.
We say /in Bulgaria/ - "Friend is really FRIEND that will help You in bad situation!"!
Thanks very much again!
Best regards!
Nikola

[EWBrown]

You're welcome! I've run these tubes on 350VDC B+, with absolutely no problems, cathode biased.
They are more powerful, and higher plate dissipation, than the smaller 6P3S / 6L6GB.

/ed B