7788 Triode Curves

dsavitsk · 23rd May 2007, 07:14 PM

Does anyone have a datasheet with 7788/E810F triode curves? The closest I have come up with is http://www.pmillett.com/pentodes.htm which is good, but I'd like the whole graph if possible.

d2134 · 23rd May 2007, 07:31 PM

From PHILIPS:
http://www.mif.pg.gda.pl/homepages/f...09/e/E810F.pdf

hagtech · 25th May 2007, 05:06 AM

From the cat:

http://www.goodsoundclub.com/PDF/7788.pdf

Just realized data sheet does not have triode connection. Send me a tube and I'll trace it for you.

jh

Brian Beck · 27th May 2007, 07:01 PM

I don't think John Atwood would mind if I post his picture of a curve trace of triode-connected 7788.

Brian Beck · 27th May 2007, 07:08 PM

And here are some data sheet characteristics for a triode-connected 7788.

dsavitsk · 27th May 2007, 07:23 PM

Quote:

Originally posted by Brian Beck
I don't think John Atwood would mind if I post his picture of a curve trace of triode-connected 7788.

Beautiful, thanks very much.

Quote:

Originally posted by hagtech
Send me a tube and I'll trace it for you.

Thanks for the offer Jim. If the attached curves don't end up being in concert with my tubes, I may take you up on it.

hagtech · 5th November 2007, 06:56 PM

This is of an Amperex "PQ".

jh

PeteN · 5th November 2007, 11:29 PM

How on earth do you make an oscilloscope do that?

hagtech · 6th November 2007, 12:29 AM

With a VacuTrace, of course.

jh

dsavitsk · 6th November 2007, 04:49 AM

Thanks Jim. For all the talk of these tubes being all over the place, and difficult to match, I've found them to be quite consistent across my samples.

23rd May 2007, 07:14 PM	#1
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	7788 Triode Curves Does anyone have a datasheet with 7788/E810F triode curves? The closest I have come up with is http://www.pmillett.com/pentodes.htm which is good, but I'd like the whole graph if possible. __________________ http://www.ecpaudio.com

5th November 2007, 11:29 PM	#8
PeteN diyAudio Member Join Date: May 2007	How on earth do you make an oscilloscope do that? __________________ -- Peter

6th November 2007, 04:49 AM	#10
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	Thanks Jim. For all the talk of these tubes being all over the place, and difficult to match, I've found them to be quite consistent across my samples. __________________ http://www.ecpaudio.com

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23rd May 2007, 07:31 PM	#2
d2134 diyAudio Member Join Date: Mar 2007	From PHILIPS: http://www.mif.pg.gda.pl/homepages/f...09/e/E810F.pdf

25th May 2007, 05:06 AM	#3
hagtech diyAudio Member Join Date: Mar 2002 Location: Hawaii	From the cat: http://www.goodsoundclub.com/PDF/7788.pdf Just realized data sheet does not have triode connection. Send me a tube and I'll trace it for you. jh

5th November 2007, 06:56 PM	#7
hagtech diyAudio Member Join Date: Mar 2002 Location: Hawaii	This is of an Amperex "PQ". jh

6th November 2007, 12:29 AM	#9
hagtech diyAudio Member Join Date: Mar 2002 Location: Hawaii	With a VacuTrace, of course. jh

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