Output tank: optimum Q on each band the low loss pi-network output tank of the AL-811 has been carefully designated for optimum Q on each band and built with quality RF components
656s-0500s 4 6-32 x 1-/2 screw
measures AC 130 to 300V
The ARF-500K2 is an upgrade kit containing both the ARF-500K and the ARI-500 Radio Interface
Some competing amplifiers using two 3-500ZGs cant deliver as much power as the AL-82
AL-811X, HFAMP, 600W, (3)811ATUBES, EXPORT, 240VAC Upgrade Kit Output tank: optimum Q onAmeritron Al 811 linear amplifier gives you plenty power to bust thru QRM. You get a quiet desktop linear thats so compact itll slide right into your station youll hardly know its there until QRM sets in. Conveniently plug it into your nearest 120 VAC outlet no special wiring needed. Three tough 811A transmitting tubes, extra heavy duty power supply, all HF band coverage, pressurized ventilation, tuned input, dual illuminated meters, adjustable ALC &