Unknown tube logo

mcs · 2008-08-17 7:17 pm

I have just bought some 6N3P tubes. I don't recognise the logo on them - the logo is this one:

Does anybody recognise it?

The tubes were made in '89, are marked with cyrillic text and come with a Russian datasheet. The logo is not on this list of Russian logos, so perhaps they are not Russian?

Best regards,

Mikkel C. Simonsen

Eli Duttman · 2008-08-17 8:40 pm

Perhaps the tubes are from the Ryazan plant. Smudge that logo, as shown in the chart, and what you provided is possible.

Bas Horneman · 2008-08-17 9:31 pm

I just bought some 6n3p's as well. Not sure what I'm going to do with them. Just got some to try them out.

May I ask what you are going to use them for?

mcs · 2008-08-17 9:57 pm

Eli Duttman said:
Perhaps the tubes are from the Ryazan plant. Smudge that logo, as shown in the chart, and what you provided is possible.

The logo isn't smudged - it looks like that on all the tubes and on the datasheet.

Bas Horneman said:
I just bought some 6n3p's as well. Not sure what I'm going to do with them. Just got some to try them out.

May I ask what you are going to use them for?

I have used them for line stages, and I'm also experimenting with a phono stage I want to try them in. What brand are your 6N3Ps?

Best regards,

Mikkel C. Simonsen

Bas Horneman · 2008-08-17 10:23 pm

What brand are your 6N3Ps?

Have not received them yet. But they seem to be from the same factory. (datasheet shown in the auction)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=200245746369&ssPageName=STRK:MEWN:IT&ih=010

mcs · 2008-08-17 10:27 pm

Bas Horneman said:
Have not received them yet. But they seem to be from the same factory.

They probably are - most of my 6N3Ps are from Gintaras also

Best regards,

Mikkel C. Simonsen

Bas Horneman · 2008-08-17 10:41 pm

Gintaras is a good man.

But I'd have to say I'm with Eli on this one. There is a striking resemblance between the logo you've shown and that of the Ryazan plant. They probably changed their logo a little bit for some reason.

mcs · 2008-08-17 10:55 pm

It doesn't look like the Ryazan logo to me at all - it looks more like the Shuguang logo to me. But did Shuguang make tubes (with Russian datasheets) for the USSR market?

Best regards,

Mikkel C. Simonsen

Bas Horneman · 2008-08-17 11:14 pm

But did Shuguang make tubes (with Russian datasheets) for the USSR market?

That seems extremely unlikely to me. The Sino-Soviet relationship has always been one of rivalry and suspicion.

PS. Your pictures seem to have disappeared.

Bas Horneman · 2008-08-17 11:18 pm

I've mailed Gintaras to ask if he knows what factory they were made in.

mcs · 2008-08-17 11:24 pm

Bas Horneman said:
I've mailed Gintaras to ask if he knows what factory they were made in.

I already have - he doesn't know either

I'll go reboot the webserver to get the pictures back...

Best regards,

Mikkel C. Simonsen

mcs · 2008-08-17 11:48 pm

The logo and Shuguang picture is back up

Best regards,

Mikkel C. Simonsen

Oleg_radio · 2008-08-20 4:38 pm

factory "OCTOBER", city Vinnitsa, Ukraine (old - USSR)

kevinkr · 2008-08-20 6:43 pm

Oleg_radio said:
factory "OCTOBER", city Vinnitsa, Ukraine (old - USSR)

You will need the deja vu file viewer to look at this file..

Bas Horneman · 2008-08-20 6:50 pm

Thank you Oleg_radio!

mcs · 2008-08-20 6:54 pm

kevinkr said:
You will need the deja vu file viewer to look at this file..

Or click below

Thanks for the help Oleg!

Best regards,

Mikkel C. Simonsen

Wavebourn · 2008-08-20 7:09 pm

6N3P were used mostly in military transceivers, radars, and similar stuff. Wen I managed a railway service department I had tons of them in transceivers on locomotives and in stationary transceivers. In civil applications they were used only in FM receivers as front - end tubes. They were relatively cheap. DIYers used them for audio, but I always hesitated. Probably because of the presupposition that they are RF tubes so not good for audio, but may be they will sound nice, I do not know.

mcs · 2008-08-20 9:11 pm

Wavebourn said:
DIYers used them for audio, but I always hesitated. Probably because of the presupposition that they are RF tubes so not good for audio, but may be they will sound nice, I do not know.

The similar 2C51 and ECC85 are fine for audio, so why not?

Best regards,

Mikkel C. Simonsen

Oleg_radio · 2008-08-21 2:14 pm

Bas Horneman said:
Thank you Oleg_radio!

mcs said:
Thanks for the help Oleg!

Is glad to help. I wish successes.
Oleg.

Wavebourn · 2008-08-26 9:06 pm

mcs said:
The similar 2C51 and ECC85 are fine for audio, so why not?

Unknown tube logo

Member

Member

Ex-Moderator

Member

Ex-Moderator

Member

Ex-Moderator

Member

Ex-Moderator

Ex-Moderator

Member

Member

Member

Attachments

Administrator

Ex-Moderator

Member

Attachments

Member

Member

Member

Member