Note
73, Jul 1966, p. 88.
73, Apr 1973, p. 86.
Ham Radio, Aug 1973, p. 74.
Ham Radio, Sep 1973, p. 90.
Ham Radio, Oct 1973, p. 78.
Ham Radio, Nov 1973, p. 96.
Ham Radio, Dec 1973, p. 68.
Ham Radio, Mar 1974, p. 76.
Note: Either a huge gap in advertising, or it was not sold continuously from 1966 to 1973. But in all that time, the price did not go up.
Originally called the EX-20, later called the EX-20S.
A low cost 6 meter transmitter wired and tested with tube, less power supply.
Ready to put on the air with any power supply supplying 300 VDC at 100 ma.
Uses 8 MHz crystals (8333–9000 kHz).
Tube Lineup
Note: Early as listed a (different) tube lineup.
– 6U8 Oscillator Multiplier
– 6BQ5 (5763) Final Amplifier
– 12AX7 Speech Amplifier
– 2E26 (6AQ5) Modulator
Features
– Meter Indicator: Providing monitoring of Final Tuning, Grid Drive and Modulation, at a glance.
– TVI Suppression: TVI suppression is accomplished by shielding and design.
– 8 to 9 MHx crystals.
– 10 watts output.
Power requirements: 250-300 v. at 75 m.a.