Several years ago I put this wonderful vintage station from
the 1930's together. I drove to Ohio to pick up this Gross
CP-100 transmitter. The transmitter was manufactured by GROSS
RADIO and it put out close to 100 watts on 80 meters. It was a
three stage transmitter with an oscillator, buffer, and monster
PA. It used a type 47 in the oscillator, 210 in the buffer,
and 211 in the final. While I often ran it crystal controlled,
for a while I used it with a Millen VFO and could go anywhere in the
CW band. I paired the CP-100 up with a really superb National
NX-101 receiver. The NC-101X came to me sporting a shiny
black NOS HRO dial. Also in the packing was the original
German Silvered HRO Dial, worn looking but still stunning. The
previous owner replaced it with a New Old Stock black HRO
dial. Thankfully the previous owner included the
original silvered dial so I quickly took the black dial off and put
the original silvered dial back on. Oh my gosh that radio
suddenly sparkled and was a stunning looker with that original
silvered dial on it. This set up was clearly one of the
classiest radios on the air. I sold this complete station to a
collector several years ago.