PCF what?

Hojvaelde · 29th May 2012, 01:51 AM

Hi

I'm about to build a 20 Watts, based on 6BG6 tubes.

I look at the input circuit right now. I will use a copy of Dynaco ST70 input, but changed to 9U8/PCF82 tubes.

In my store, I have some PCF82 tubes, but there were some PCF802.

I can not see much difference in the data sheet.

Are there some who can immediately explain to me the difference between the two types?

Benny

Yvesm · 29th May 2012, 05:45 AM

Pentodes are quite similar but the 802 triode has twice the µ of the 82 one

Look at:
electron Tube Data sheets - P

Yves.

29th May 2012, 01:51 AM	#1
Hojvaelde diyAudio Member Join Date: Jan 2005 Location: Denmark	PCF what? Hi I'm about to build a 20 Watts, based on 6BG6 tubes. I look at the input circuit right now. I will use a copy of Dynaco ST70 input, but changed to 9U8/PCF82 tubes. In my store, I have some PCF82 tubes, but there were some PCF802. I can not see much difference in the data sheet. Are there some who can immediately explain to me the difference between the two types? Benny

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29th May 2012, 05:45 AM	#2
Yvesm diyAudio Member Join Date: Jul 2004 Location: Ardeche	Pentodes are quite similar but the 802 triode has twice the µ of the 82 one Look at: electron Tube Data sheets - P Yves.