• schematic diagram helps you understand grounded grid RF Power Amplifiers
• This manual printed in the 1970's to be supplied with new linears sold then
• Parts list for 6915 has different location designations than 150 schematic
• This schematic has a TV sweep tube driving three TV Sweep tubes  
• keying circuit uses 6BQ5 tube to activate relay when drive signal is sensed
• CBK Supply has hundreds of parts in stock:  Local pick-up: GPS 42.279521 -85.544180 
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