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Hoffman Amps Forum image Author Topic: 5E8A question  (Read 2227 times)

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Offline mresistor

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5E8A question
« on: November 02, 2021, 09:21:48 pm »
Hi..  does the 5E8A have a paraphase phase inverter?   

Offline sluckey

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Re: 5E8A question
« Reply #1 on: November 02, 2021, 09:35:59 pm »
no
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline mresistor

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Re: 5E8A question
« Reply #2 on: November 02, 2021, 09:59:57 pm »
  It looks like a cathodyne.   One signal taken of the plate and inverted signal off the cathode.  It's just drawn funky to me.
« Last Edit: November 02, 2021, 10:08:38 pm by mresistor »

Offline Willabe

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Re: 5E8A question
« Reply #3 on: November 02, 2021, 10:35:10 pm »
Most of the 5E series have the cathodyne/split load PI. The 5F series went to the LTPI.

https://el34world.com/charts/Schematics/files/Fender/Fender_twin_5e8a_schem.pdf

Offline sluckey

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Re: 5E8A question
« Reply #4 on: November 02, 2021, 10:38:19 pm »
Looks just like most ac coupled cathodynes, including princeton reverb. What seems odd to you?
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline mresistor

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Re: 5E8A question
« Reply #5 on: November 02, 2021, 11:48:23 pm »
I don't know why but at first it looked odd,,  after a closer look it looks like a cathodyne.  Thanks. 

 


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