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Re: [Amps] 1N Diodes

Subject: Re: [Amps] 1N Diodes
From: Mark - N5OT <>
Date: Wed, 30 Jun 2021 10:31:23 -0500
List-post: <>
Thanks everyone,

I think I will leave the 1N4003 in there for the time being, but when I find a 1N4001 I'll set it aside for the next time I open the box.

73 - Mark N5OT

On 6/30/2021 9:26 AM, Dan Michnay wrote:

I ran into trouble replacing a 4002 with a 4007 some years ago. It was in a switching power supply. The reverse recovery time increases significantly as you go from the 4001 to the 4007. I don't know if that is significant in your application but it is true

Dan K9EA

On 6/30/2021 9:50 AM, Mark - N5OT wrote:
So I put it in and the meters work like they're supposed to.  Just worried if it affects the overload circuit. However, the amp is running very acceptably.  25ma of Grid current at 1500 watts out.

On 6/30/2021 7:34 AM, Mark - N5OT wrote:
Ameritron AL800H - two 3CX800s

Meters have always behaved badly.  Manual says when this happens, then D117 may be shorted.  I have the amp opened, and this diode tests shorted.

Manual says this diode "protects the overload circuit and the meters."

It's a 1N4001.  I can't find any around here.  I have about 1x10E18 1N4003 diodes.  Can I use a 1N4003?

Thanks in advance.

73 - Mark N5OT
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