Re: {Collins} FS: HP410C Multimeter



Hi Jerry,
Thank you for sharing this (pretty obscure!) information.
Meanwhile, I have been wondering why the HP 410 in particular is highly
touted for aligning Collins units?  Would not an 11-megohm input analog VTVM
be suitable?
Thanks for any replies and 73 to all,
Mike W2IY

-----Original Message-----
From: Collins [mailto:collins-bounces+w2iy=verizon.net@xxxxxxxxxxxxx] On
Behalf Of Jerry
Sent: Friday, December 21, 2012 5:26 PM
To: w7ksg@xxxxx; collins@xxxxxxxxxxxxx
Subject: Re: {Collins} FS: HP410C Multimeter

There was a service mod to remove this isolation risk for all with serial
numbers lower than 0982A17729.  See
http://www.hparchive.com/Manuals/HP-410C-Safety-Note-14A-S.pdf  There is an
easy quick ohmmeter test to see if the mod is installed. 

73 Jerry
K1JOS



-----Original Message-----
From: Collins [mailto:collins-bounces@xxxxxxxxxxxxx] On Behalf Of
w7ksg@xxxxx
Sent: Friday, December 21, 2012 10:51 AM
To: collins@xxxxxxxxxxxxx
Subject: {Collins} FS: HP410C Multimeter

Excellent condition HP410C multimeter.  This is the model with the hybrid
plug-in module.  The unit has been fully checked out and works great.  Comes
with AC probe with ground clip, AC cord. 
New test leads.  Non smoking environment. Meter scale and panel markings
clear and distinct. The manual is available on BAMA or downloaded from the
Internet. When this instrument is connected to external AC gear it MUST be
used with an isolation transformer - NO EXCEPTIONS.  If this rule is not
followed disastrous results will occur.  This caution notice appears in the
HP manuals. The HP410B/C is the one to use on your Collins gear. A DVM is
not satisfactory for peaking or nulling a circuit as the digital readout or
bargraph does not respond quickly enough to show the intended results.
$165.00 plus shipping.
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_______________________________________________
SHARE THE FUN: JOIN THE COLLINS COLLECTORS ASSOCIATION TODAY !
http://www.collinsradio.org/?page_id=37

 NETS: Tues & Thur: 3.805 MHz-2000 Central + Fri: 3.895 MHz-2000 Pacific
  SUNDAYS: 14.263 MHz-2000 UTC  +  AM Net: 29.050 MHz-1200 Central
  1st Wednesday AM Net 3.880 MHz-2000 local (ET, CT, MT, PT)

The Collins Reflector reserves the right to refuse access to anyone.

LIST HELP?  ADMIN EMAIL:  collins-owner@xxxxxxxxxxxxx
This ONLY goes to the list admins and does not post to the group!





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