[Test-Equipment] Re: HP-5255A frequency converter

Mon, 18 Mar 2002 00:01:58 +0100

Just wonder if it was some questions regarding the 5255A some time ago?=20
Found the book today after donating many books to the club www.nrhf.no,=20
also thought I had the book for HP410C, but I might have mixed it up =
with HP427....., might even have donated the manual to NRHF and forgot =
to make a list of books, most duplicates and handbooks for instruments I =
don't have

Jan_Martin
LA8AK (in JO38XC)=20
N4623-Kristiansand (tel.: +47-380-87178)


----- Original Message -----=20
From: "John D. Farr" <[email protected]>
To: <[email protected]>
Sent: Saturday, March 16, 2002 11:25 AM
Subject: [Test-Equipment] Late model HP-410C info needed.


> Hello, and thanks for reading this. I have a late model HP-410C but =
both the
> HP manual and the military manual only cover the early models. The
> difference is that in this model, the circuit board containing the =
chopper
> circuits has been replaced with a very sparsly populated board =
containg two
> IC's (one might be a dual transistor) a few resistors, capacitors and
> trimmers. Does anybody have a schematic of this board? I would =
certainly
> appreciate a copy or at least the description of the adjustments that =
are on
> this board. Some of them are un-marked. I would be glad to pay postage =
and
> copying expenses.
> thanks, John.
>=20
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>=20