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Fig. 2, The standard tone frequencies for tone dial systems.

Conclusion

A ohoio of the completed decoder in it. prototype stage is included. The circuit fits my requirements and also fits inside my 450 base station. The board is approximately 2!/?" x 3*\ A local group CONTACT, INC, 35 W. Fairmont Dr., Tempe AZ 85281, has etched and driflcd PC boards avaiiabîe for

the decode* with latch ¿nd relay for $5.50. They also self the decodei wired, tested and tuned to your desired numbers. 1 have several o) l h esc decoders in use in various places and iinci them quite useful. *

The Kenwood "Twins"...all of the advantages of separate units... PLUS!

Kenwood developed the T-599D trans^ mitter and R-599D receiver for the most discriminating amateur. The R-599D is the most complete receiver ever ofiered. It is entirely solid-state, superbly reliable, compact and features a handsome new look. It covers the full amateur band, 10 through 160 meters, CW, LSB, USB, AM and FM.

The T-599D is solid state with the exception of only three tubes, has built-in power supply and full metering. It operates CW, LSB, USB and AM and, of course, is a perfect match to the R-599D receiver.

If you have never considered the advantages of operating a receiver/

transmitter combination ... maybe you should now. Because of the larger number of controls and dual VFOs the combination offers flexibility impossible to duplicate with a transceiver. They permit transmitting and receiving on different frequencies, no matter how far apart. The VFOs are linked electronically so either one can transceiver (A tremendous advantage when DXing.)

Compare the specs of the R-599D and the T-599D with any other brand. Co mpare their performance and prices. Remember, the R-599D is all solid state (and includes four filters).

Your choice will obviously be the Kenwood.

Kenwood\. i pacesetter in amateur radio

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