WRL-70 Speech Amplifier-modulator
Circa 1941
Globe Power Master LA-1600: linear amplifier; 1959
catalog;
price $349.95 kit, $399.95 wired; 250 watts AM, 800 watts CW,
1600 watts PEP SSB; 5-10 watts drive power required; class AB1;
delivers more watts at same input than high voltage low current
tubes; bandswitching 80 thru 6 meters.