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Old 10th July 2012, 06:59 AM   #11
Kranj1 is offline Kranj1  Slovenia
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Quote:
Originally Posted by Junm View Post
I have some of these and waiting for good schema's and OPT's as well...
Here is the good link for Russian valves in amps. It's in Russian language only, but I do speak a bit Russian (have learned for my business needs). In case of need I can help on translation.

I also have some PDF documents about many different Russian valves and schematics, which can be found on the Net.

Thanks guys for your help. I'll play a bit with your suggestions to further confirm that 5600 is acceptable. Must hurry up to finish this amp for my son (as a gift for finishing secondary school).

Regards!
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Old 10th July 2012, 10:01 AM   #12
Junm is offline Junm  Philippines
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it seems the link doesn't work....
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Old 10th July 2012, 11:46 AM   #13
Kranj1 is offline Kranj1  Slovenia
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Sorry my bad...

here's the LINK.

Bye
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Old 11th July 2012, 09:31 AM   #14
Kranj1 is offline Kranj1  Slovenia
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Story goes on..
In attachment you can see two graphs; one in triode and second in pentode connection. I placed 12W limitation curve and three "working" lines for 5600, 6000 and 7000 Ohms. In triode mode I get from 1,2W to 3,5W and in pentode from 5W to 10W. Don't know what would be in UL mode.

The funny thing is that my calculated result (approx. 7W) is not equal to in schematic suggested power (9W).

What I'm doing wrong?
Attached Images
File Type: jpg 6p18p_triode.jpg (27.4 KB, 178 views)
File Type: jpg 6p18p_pentode.jpg (64.8 KB, 176 views)
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Old 12th July 2012, 01:51 AM   #15
Junm is offline Junm  Philippines
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Quote:
Originally Posted by Kranj1 View Post
Sorry my bad...

here's the LINK.

Bye
The link is good...i've been here...and actually i've already build the 6R2P amp from sergey komarov....i have posted it somewhere in this forum...

i just finished it tweaking yesterday and found the problem....now i'm satisfied with the final result and sound was very good especially the vocal and highs...
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Old 24th July 2012, 07:01 AM   #16
Kranj1 is offline Kranj1  Slovenia
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I placed the order for TGL60/001. It's 3K on 4Ohm speaker. I'll use it with 8 Ohm speker to get 6k.
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Old 6th October 2012, 09:28 AM   #17
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i dont mean to thread jack, but i have a question im sure one of you can awncer,

i have 12 pl500 sweep tubes that i was going to use to build two monoblocks with, if i configure 6 of them in push pull parallel (per channel),using the prescribed voltages on the spec sheet, what sort of primary resistance and wattage opt do i need to look for?

here is the pdf...

http://www.r-type.org/pdfs/pl500.pdf


thanks in advance
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