[Test-Equipment] HP 10554 Oven

[Eric Lemmon]

Some great info on the 10544 oven oscillator, including manuals and
schematic, is here:
<www.leapsecond.com/museum/10544/>

Similar info on the 10811 oven oscillator is here:
<www.leapsecond.com/museum/10811a/>

73, Eric Lemmon WB6FLY
 

-----Original Message-----
From: test-equipment-bounces at mailman.qth.net
[mailto:test-equipment-bounces at mailman.qth.net] On Behalf Of Bill Riches
Sent: Saturday, February 27, 2010 9:28 AM
To: 'Discussion of Electronic Test Equipment'
Subject: Re: [Test-Equipment] HP 10554 Oven

Hi Pete,

Part numbers are for a HP 10554A oven controller.  Numbers on schematic are
as follows:

Q1- 4-23
Q2 - 4-560
Q3- 5-10
Q4 - 3-347

Just wondering if you put 185 in front of these numbers do real part numbers
appear? Any help will be appreciated.



Bill,

  What HP part numbers do you have?  There are HP cross reference lists out
there, like at work which I won't be at until next Monday.

  I build a nice freq std using that oscillator a few years back.  See it at

http://www.qsl.net/kh6grt/page4/freqstd/freqstd.htm

 

pete


 
> From: bill.riches at verizon.net
> To: test-equipment at mailman.qth.net
> Date: Fri, 26 Feb 2010 20:17:17 -0500
> CC: bill.riches at verizon.net
> Subject: [Test-Equipment] HP 10554 Oven
> 
> I am working on the oven controller assembly that will not heat up. I do
> have the schematic for it but wonder if anyone has transistor and IC part
> numbers for this board. Looks like hp numbers on the devices.
> 
> 
> 
> Any info would be appreciated.
> 
> 
> 
> 73,
> 
> 
> 
> Bill, WA2DVU
> 
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