| PYE 232, 2 valve battery
operated set c. 1928. BURGOYNE early 1930's 4 valve "portable" radio. 1930's LOUDSPEAKER, 1'5" diameter, balanced armature type, "Adventurer" made by Tower Manufacturing Corp, Boston, Mass, U.S.A.. Surprisingly good bass response. POLAR DIAL, 13:1 slow motion, 2 windows each 0-100 over 180 degrees. REACTION CONTROL, 500pF variable capacitor ganged with 15K ohm potentiometer, 1/4" shaft. BOY'S OWN PAPER Crystal Set PLANS copied from 1914 Boy's Own Annual, absolutely fascinating. HIGH RESISTANCE headphones. VALVE SOCKET, 4 pin, breadboard mounting. GALENA, 3g lump, enough for several crystals. |