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Title: RCA modulation transformer Post by: W8ACR on January 18, 2020, 08:15:25 PM Hello all,
Does anybody know what kind of transmitter this mod transformer came out of? It weighs 160lb. It has only three primary terminals, and only two secondary terminals, but it lists two different primary impedances. Can somebody explain this to me? Thanks, Ron Title: Re: RCA modulation transformer Post by: W7TFO on January 18, 2020, 08:33:35 PM Looks like that from a BTA-1L, 833A's X 833A's.
If I remember rightly, the lower impedance is what is represented when the tubes are cut back to 250W for night op. 73DG Title: Re: RCA modulation transformer Post by: WB4AIO on January 24, 2020, 12:05:17 AM Hello all, Does anybody know what kind of transmitter this mod transformer came out of? It weighs 160lb. It has only three primary terminals, and only two secondary terminals, but it lists two different primary impedances. Can somebody explain this to me? Thanks, Ron It's likely that the lower impedance listed is from CT to one side. Half the turns, a quarter of the impedance. 73, Kevin, WB4AIO. Title: Re: RCA modulation transformer Post by: ka1tdq on January 24, 2020, 03:12:35 AM I need something like that!
I could've modulated two 7984's instead of just one by a couple KT-88's with that... Jon Title: Re: RCA modulation transformer Post by: Opcom on January 26, 2020, 08:51:44 PM Would it also be the same transformer as in the RCA-1K? That also has 833s. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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