Can't Find Diode on Hifonics Brutus BRZ1200.1D

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Hio!

As a last ditch effort, I decided to post on these forums to see if some angel could help me find a diode that I lost after I took it off, and then the other one that was mirrored, exploded, so I have no clue.

It's a Hifonics Brutus BRZ1200.1D. I could not find any more information on the diodes in question anywhere.

I need to replace the diodes D28, D29, D30, D31. I know that D29 and D30 are 1N4148 diodes, but D31 and D28 are a mystery to me at this point.

Could anyone who's repaired this amp before or who has one they can pull the diode out for me let me know what diode these need to be replaced with?

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The 4148 and the zener begin to conduct when ringing/spikes on the drains of the FETs exceed about 40v. This clamps the spikes at at about 44v.

Nothing bad is likely to happen with a 39v zener. The amp will work perfectly fine without them. They are rarely needed in normal operation but they should be replaced.
 
The 4148 and the zener begin to conduct when ringing/spikes on the drains of the FETs exceed about 40v. This clamps the spikes at at about 44v.

Nothing bad is likely to happen with a 39v zener. The amp will work perfectly fine without them. They are rarely needed in normal operation but they should be replaced.

Thank you so much for your help. I had everything ordered, the resistors, 10 FETs to replace both lines and then I shattered that one diode and I panicked. I will be ordering one soon. Thank you.
 
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