[NLRS] HP 620B operation

[Donn, WA2VOI]

NLRS didn't like THREE recipients, so....
******************************************


Hi Mel.

Go to <http://www.ko4bb.com/manuals/index.php?dir=HP_Agilent>

Scroll down to " HP 620B Operating and Service Manual" and download.  It IS
big... 6.3M, so it make take some time depending on your connection.

I suspect that anti-static mats were not invented when the 620 sig gen was in
use.  Vaccum tubes didn't (don't ?) need them.  Usually, a lightning symbol
means "HIGH  VOLTAGE," so be careful.  The repeller voltage on a klystron can be
several hundred volts.  The connector may be for a synchronizer interface, or
may need to have a jumper plug built-up and used.  The manual "should" explain
it.

73 Donn
WA2VOI/0

----- Original Message ----- 
From: <Melvynkc0p at aol.com>
To: <10ghzcontest at www.chris.org>; <nlrs at mailman.qth.net>
Sent: Thursday, October 25, 2012 10:20 PM
Subject: [NLRS] HP 620B operation


>
>
> I am trying to get a HP 620B SHF Signal Generator operational. In the  lower
> left hand corner is a white pushbutton labeled Line off and on. When I  push
> it in the fan comes on but it does not latch into the On position. Do I
> have
> to hold it in until something times out ? I notice there is a seven pin
> socket
> on the rear labeled Repeller and it has nothing plugged in. Do I need  to
> provide a short between a couple of pins ? There is a lightning  symbol
> in red near this socket, maybe it was to be a connection to the  anti-static
> matt.
>
> Mel KC0P/R
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