Static on the plastic meter face?
73
Gary K4FMX
Gudguyham@aol.com wrote:
In a message dated 1/30/04 11:42:35 PM Eastern Standard Time,
n4zr@contesting.com writes:
It occurs to me that a couple of years ago the multimeter stopped working
in the relative power and HV positions -- it still works for grid
current. Could the switch be progressively failing, since that's about the
only component in common between the two metering functions, it
appears? If so, does anyone know of a replacement switch with the proper
indexing to match the panel?
Its not unlikely that the series meter multiplying resistors have gone bad
(one opened) for the HV problem, and perhaps the sensing diode has gone in the
rel output mode. It could be the switch, unlikely though. In any case, I have
the complete HV metering resistors for sale for replacement and also have
replacement meter switches if that's your problem. As far as the plate meter
reading, it seems that you have a "rough spot" in the meter. This usually can be
remedied but backing off slightly on the nut at the center of the meter. Hold
screw in palce with jewlers screwdriver and loosen nut a tad. Blow on meter
movement to see if it returns smoothly adjust nut and screw accordingly until
meter runs freely. If you would like to purchase the replacement metering
resistors or switch, please contact me off list. 73 Louie W1QJ W1QJ.COM
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