[Heathkit] Test equipment question ---The H-P 410 B

Fri, 8 Mar 2002 11:50:46 -0700

HI, I will refer you to the manual as the diode probe has special cable.
the cable quite often breaks at the bottom 
connector. you must trim the cable back about 2 inches from the clamps on
the connector. Since the probe cable has both input dc signal from the
probe diode as well as the heater voltage for the probe and the  an
overall shield for this, the cable is critical. It sounds as if the
overall shield is opening up. Repair should clear this problem up.  Don't
forget to set the heater voltage or curent after this repair.
This meter is one of the best still around, much better than its
successors.  Good to over 700 mcs  (mhz)

Jack     [email protected]

On Fri, 08 Mar 2002 09:00:38 -0700 Shawn Duley <[email protected]>
writes:
> A bit off topic, but, I have an HP 410B VTVM that I use on my Heath 
> gear
> which has an annoying habit.  On the more sensitive scales, just
> handling the test leads causes the meter needle to bounce all over.  
> I
> have replaced all the leads, and cleaned the contacts where the 
> lead
> connector plugs in the bottom of the meter.   Does it in all modes 
> and
> is less severe or non-exsistent on the less sensitive scales.  
> Anyone
> know how to correct this problem?
> 
> Shawn, N7PRP
> 
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