[R-390] HP-411A RF mVmeter

[Jordan Arndt]

Reposting without the attachment as it is being held up due to the size...I 
can forward the 411A SM should anyone ask...

73...Jordan...

----- Original Message ----- 
From: "Jordan Arndt" <Outposter30 at shaw.ca>
To: "Barry" <n4buq at knology.net>; "Jacques Fortin" <jacques.f at videotron.ca>
Cc: "Larry Haney" <larry41gm2 at gmail.com>; "R-390 Mailing List" 
<r-390 at mailman.qth.net>
Sent: Wednesday, October 23, 2024 11:00 AM
Subject: Re: [R-390] Official specs


> Hi group...
>
> I have an HP-411A RF millivoltmeter that I have used for years, but it
> appears that one of the diodes in the RF probe has failed.
>
> The diodes are embedded in a small encapsulated tube which is part of the 
> RF
> probe.
>
> Before I try to fabricate something that might work, I'd like to ask the
> group if anyone has a junker HP-411A with the RF probe intact...I'm
> attaching the 411A service manual in case anyone has suggestions or can
> provide advice on rebuilding the "capsule"...
>
> 73...Jordan VE6ZT