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Ham Radio CD-ROM (Emerald Software) (1995).ISO
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kenwood
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ken_mods
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ts530
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1990-05-08
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1KB
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23 lines
SUBSCRIBER'S COMMENTS ON QRO MODIFICATION TO TS-830S, TS-530S
AND TS-530SP
I would like to pass on the problem I hace encountered in
connection with the QRO modification to the Kenwood radios
TS830S, TS-530S and the TS-530SP.
The problem occurs after many hours of long winded QSO's. It
seems that with the increase in the screen voltage from 210
to 300 volts, R37 on the RF unit (#X44-1360-00) heats up
tremendously and will change it's value so greatly that even
the receive either suffers or goes out totally. R37
originally is Metalfilm resistor at 3.3K ohms and is 1/2
watt.
I have changed mine to a Metalfilm as original same value but
have used a one watt resistor. The brand I was abble to get
was RCA and I suppose there are better on the market. This
is a 2% tolerance. Three units that I know of have had this
problem that I took care of in this area alone. Two units
were TS-830S and one a TS-530SP. Just thought I would pass
that information along for what it is worth. (Thanks, Frank
J. Lukas, Jr., 5301 Main Ave., North Ridgeville, OH 44039)
RELAYED BY...N0KGX...GENE