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1990-09-04
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20 lines
vfo-230 fine tune mod correction
a note published in your t/k newsletter of january, 1983, issue no. 30,
concerning a fine tuning mod for the vfo-230, impelledme to purchase a
new vfo-230 for the sole purpose of obtaining a slower dial tuning rate
for my ts-380s. then the combination of a defective new vfo-230 and some
bad information in your newsletter note triggered many, many hours of
frustration and irritation over a period of several months starting in june
1986. i believe you should know about it when information in your newsletter
causes frustration and irritation.
i decided to try the diode cutting bit again. it did not work.
the optical dial encoder went crazy. i was ready to explode and did.
Fortunately there was nobody around to hear me. back to the drawing board.
now i know practically nothing about optical encoders but i do have an
engineering background so i spent some time staring at the vfo-230
schematic in the ts-830s service manual. suddenly the light came on.
ka0nnf gave you the wrong information about which diodes to cut.
(his call is not wa0nnf as given in your newsletter note. i tracked him
down by telephone. he told me he had sold the vfo-230 and couldn't remember.)
CONTINUED IN FILE VFO230.1