05-03-2009, 05:22 AM
Bob,
I had to go thru your posts to deterime what radio this is. Can I assume you're still working on the 40-190? The pushbutton tuning is similiar to the 1940 RCA 19K I'm rewiring now. Both have switchable coils and trimmers that tune a certain range. It appears the setup was intended to be done by the local dealer who would insert station call letters by the push buttons and tune the presets before the set went out the door. It sounds like you're at that point when you set your RF generator to a station and can hear it over the radio. Try it using the pushbuttons instead of the dial. The Rider directions say to tune the osc first, detune the RF gen and then peak the osc and ant until the station is tuned in. I assume osc is the coil and ant is the trimmer. Remember that buttons 1, 2, and 3 tune 540-1060; 4 and 5 tune 650-1110; and 6 and 7 tune 920-1600.
I think Codefox was asking for a spare meter built after the nixie tube era.
I had to go thru your posts to deterime what radio this is. Can I assume you're still working on the 40-190? The pushbutton tuning is similiar to the 1940 RCA 19K I'm rewiring now. Both have switchable coils and trimmers that tune a certain range. It appears the setup was intended to be done by the local dealer who would insert station call letters by the push buttons and tune the presets before the set went out the door. It sounds like you're at that point when you set your RF generator to a station and can hear it over the radio. Try it using the pushbuttons instead of the dial. The Rider directions say to tune the osc first, detune the RF gen and then peak the osc and ant until the station is tuned in. I assume osc is the coil and ant is the trimmer. Remember that buttons 1, 2, and 3 tune 540-1060; 4 and 5 tune 650-1110; and 6 and 7 tune 920-1600.
I think Codefox was asking for a spare meter built after the nixie tube era.
Dave
Colo Spgs
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