1930's RCA 10-Meter TX

[W7TFO]

I just cinched a deal on this unit.  It is a metal cabinet style rig, about 4' high.

I just caught a glimpse of it in a warehouse, so memory is all I have, no pix yet.

As soon as I can make it to the coast to retrieve it, I'll post same.

Yee-hah!

73DG

[The Slab Bacon]

Just pad the coils down wit a little C and you'll be " the boss with the hot sauce" down a few KCs.................  

[W7TFO]

The RCA model 100-F transmitter came home with me from Mike KO6NM this weekend.  It was not built for Forest Service nor police use, rather part of an RCA project in the 1930's referred to as the "Apex" project.

RCA was looking for a way to beat the static noise on regular broadcast, so the FCC authorized the use of frequencies around 10 meters, with high-bandwidth Hi-Fi AM modulation used.  The program was dead with the advent of Armstrong's FM before the war started.

I believe this particular TX was used at KNX in Los Angeles in 1936, call sign W6XDA.

It runs 100 Watts from 30 to 41 MC.  Production was very limited.

The attached period photo was taken at W8XWJ in Detroit, that TX is on the left atop the pedestal.

If anyone knows of another physical one about, I'd love to hear about it.

73DG

I'll be adding more info and pix soon.