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- MODIFICATIONS FOR THE WILSON MARK II AND MARK IV FOR CAP & MARS
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- Please refer to the "Operating and Service Manual" for these radios.
- If you are having trouble getting MARS and CAP crystals to oscillate,
- the following four steps should be taken:
- a. change C88 to 4pf.
- b. change C92 to 3pf.
- c. change C98 to 22pf.
- d. change C99 to 22 pf.
- e. Align T10, T11 to produce more than 1 volt on TP2
- at both ends of the band.
- f. Align T12, T13 to produce more than 1 volt on TP3
- at both ends of the band.
- g. Align L2 and L3 carefully to produce about the same
- power output at both ends of the band.
- h. The radio should now be checked on a spectrum analyser
- to insure clean operation. Of course the normal frequency
- and deviation checks should also be made.
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- For parts location on the circuit board, refer to the X-Ray view in the
- Operating and Service Manual.
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