Messenger 223

• Brand: Viking

Designed for uncompromising base station use, the 223 is built to deliver reliable day-in, day-out performance, punching out a penetrating signal that will stand out compared to others. Has at least 15 db more audio gain and more talk power than the almost unbeatable famous Messenger I and Two! Combines proven tube circuitry with the industry's most accurate and reliable frequency synthesizer to give unmatched 23 channel frequency control at a reasonable price. Receiver has 4 double tuned IF's for excellent adjacent channel rejection,
0.5 microvolts sensitivity for 1 db signal to noise ratio, series type automatic noise limiter, adjustable squelch, AGC, superior audio, built-in speaker and provision for external 3.2 ohm speaker. Has combined iluminated "S" meter/power output meter. Transmitter RF output 4 watts. Microphone input, high impedance. Has cast and chrome plated front panel, perforated steel enclosure. For 117 VAC 50-60 Hz only. With press-to-talk ceramic mike.

In questo link sono elencati 75 modelli, di cui 65 con immagini e 30 con schemi.
Elenco delle radio e altri apparecchi della Johnson Company, E.F.; Waseca, MN