Waters Mfg. advertisement from the 73 Magazine (May 1965)
334 Dummy load, watt meter
369 Reflectometer
371, 372 Attenuator
331 Solid state dip meter
370 Mobile antenna
361 CODAX automatic keyer
Collins 75S-1, KWM-2/2A accessories
349 Channelator
337 Q-multiplier, notch filter
354, 355 Electric vernier tuning, +/- 500Hz.
572B, 3B28 tubes
359 Mic compressor for PA and recording
372 Mic compressor, audio clipper for SSB transmission
346 6/2m receiving converter
373 6/2m band pass filter
Coaxial switches
335 6-pos
336 transfer. DPDT linear amp in-out switch
341 SPDT, 2-way antenna selector
351 Dual coax transfer. (6 connectors)
347 Illuminated knob
3001, 3002 hybrid phone patch