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Hoffman Amps Forum image Author Topic: rectifier diodes in AA270 twin  (Read 2075 times)

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Offline mresistor

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rectifier diodes in AA270 twin
« on: August 29, 2020, 04:02:59 pm »
Are two 1N4007 diodes in series good enough to replace each leg of the PT secondary HV AC in the amps rectifier?   Thanks


https://el34world.com/charts/Schematics/files/Fender/Fender_twin_reverb_aa270_schem.pdf
« Last Edit: August 29, 2020, 04:33:28 pm by mresistor »

Offline shooter

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Re: rectifier diodes in AA270 twin
« Reply #1 on: August 29, 2020, 04:36:39 pm »
don't see a problem using 2 07's
Went Class C for efficiency

Offline DummyLoad

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Re: rectifier diodes in AA270 twin
« Reply #2 on: August 29, 2020, 04:42:54 pm »
for 4 x 6L6 use a quad of 1N5408s. 2 in series for each primary phase (leg).   

--pete

Offline mresistor

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Re: rectifier diodes in AA270 twin
« Reply #3 on: August 29, 2020, 05:03:50 pm »
thank you ..   


5408s it is   

Offline shooter

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Re: rectifier diodes in AA270 twin
« Reply #4 on: August 29, 2020, 05:16:41 pm »
 :BangHead:
when i opened your link it was zoomed to only 2 6L6's  :think1:
Went Class C for efficiency

Offline pdf64

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Re: rectifier diodes in AA270 twin
« Reply #5 on: August 31, 2020, 10:10:42 am »
...5408s it is
I tried that as an upgrade once; note that the leads of 3A diodes can be much thicker than those of 1A types, so getting 2 into an eyelet can be a struggle.
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