parallel pp EL84

civic2006 · 24th May 2010, 09:27 AM

hi to all
can i use a pp ot with 5K plate to plate prim and 4-8 ohm sec.
for a parallel pp EL84 design

TheGimp · 24th May 2010, 01:21 PM

Push Pull amp with EL84 is 8K to 10K plate to plate load. So if you run parallel Push Pull with two tubes per side you will need to reduce the plate impedance by a factor of two. Therefore 4K to 5K P-P is proper load.

So yes. You can use a 5K p-p transformer for parallel push pull with EL84.

civic2006 · 6th June 2010, 07:49 AM

sorry late reply
thx for your info
that was my idea
just have to finde me a good layout now

OneyedK · 6th June 2010, 03:08 PM

Quote:

Originally Posted by civic2006

just have to finde me a good layout now

What kind of amp are you building? (musical instrument amp or HiFi)

24th May 2010, 09:27 AM	#1
civic2006 diyAudio Member Join Date: Nov 2009	parallel pp EL84 hi to all can i use a pp ot with 5K plate to plate prim and 4-8 ohm sec. for a parallel pp EL84 design

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24th May 2010, 01:21 PM	#2
TheGimp diyAudio Member Join Date: Aug 2009 Location: Johnson City, TN	Push Pull amp with EL84 is 8K to 10K plate to plate load. So if you run parallel Push Pull with two tubes per side you will need to reduce the plate impedance by a factor of two. Therefore 4K to 5K P-P is proper load. So yes. You can use a 5K p-p transformer for parallel push pull with EL84.

6th June 2010, 07:49 AM	#3
civic2006 diyAudio Member Join Date: Nov 2009	sorry late reply thx for your info that was my idea just have to finde me a good layout now

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