Ramsey Electronics FR220, Instruction Manual

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FR-220
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for fine tuning purposes only. Try reducing C12 to 1 or 2 pF for starters.
Finally, the only pin of the MC3359 not used in our circuit is pin 15, for
scan control. Perhaps you will come up with some fascinating idea for it!
Again, please be sure that you understand your warranty, and that you
understand your receiver and how to keep it working, before attempting
any modifications.
If you've enjoyed this kit, be sure to check out the entire Ramsey kit line.
We have a whole series of nifty synthesized VHF FM Transceiver kits
that not only teach state-of-the-art technology, but are fun and easy to
build, too! Call or write for our catalog.