[time-nuts] Adapter Boards

Lester Veenstra M0YCM m0ycm at veenstras.com
Sat Dec 30 16:17:00 EST 2006


It is: The 2nd style is wider than the oscillator and has a 10K pot along
with two adjustable caps anduses a voltage regulator mounted on the rear
standoff, and is usually what you see on eBay.

Lester B Veenstra 
M0YCM K1YCM  K1YCM/6Y5
 
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-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Jason Rabel
Sent: Saturday, December 30, 2006 4:31 PM
To: m0ycm at veenstras.com; 'Discussion of precise time and frequency
measurement'
Subject: Re: [time-nuts] Adapter Boards

Can you clarify your question a little?

There are two different styles, one that is the width of the oscillator
(approx) and has no adjustments, the only adjustment that can be made is on
the oscillator itself. The 2nd style is wider than the oscillator and has a
10K pot along with two adjustable caps.

Of the 2nd style, there are 3 revisions that I know of. The A & B revision
use a power resistor, and the ones I got had a big burn spot from the heat
(and they also did not work). The newest revision (I guess C) uses a voltage
regulator mounted on the rear standoff, and is usually what you see on eBay.

These adapter boards are required in some older HP equipment, like the 5328A
counter.

Jason


> Can anyone identify the adapter board HP 05328-20027 used 
> with an 10544A
> osc. ?
> Lester B Veenstra 
> M0YCM K1YCM  K1YCM/6Y5


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