[time-nuts] HP10514B Mixers

[Mike Feher]

Appreciate that info. That means the small cubes I remember were "B"s. I bet
I may still have one or two someplace downstairs. Thanks - Mike

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960




-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Brian Kirby
Sent: Tuesday, March 30, 2010 9:11 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] HP10514B Mixers

We'll the "A"s are the package with the BNC connector.

The "B"s are for OEM equipment, they had 6 pins and a smaller plastic 
black case ....

Turns out they have some of the lowest phase noise specs on record....

I can send the manual, if you like...

Brian

Mike Feher wrote:
> I do not believe that I am familiar with the 10514B. I probably have about
6
> or so 10514As with BNC connectors (most in a metal case and a few in
epoxy),
> and, I recall from about 40 years ago a 10514A that was a small little
black
> cube with leads for mounting on a PC board. Naturally, I had to take one
> apart back then as that was the fun part. In the late 60's I designed a
> thick-film phase detector that was used in an ASW system, where I simply
> matched the hot carrier HP diodes for a fixed voltage drop at a given
> current. We also wound the toroids, and had an op-amp on the output. Wow,
> that was ages ago. Regards - Mike
>
> Mike B. Feher, N4FS
> 89 Arnold Blvd.
> Howell, NJ, 07731
> 732-886-5960
>
>
>
>
>
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