Buddy back east, asked me to post this for him. If interested, contact Roger, VE3ZI. He is moving back to the UK, and does not want to ship it to the UK.
"The amp uses a 4CX5000A which was new old stock and has very few hours on it. It is driven in passive grid and has a GM3SEK tetrode board considerably modified for the high screen voltage. The plate tuning capacitor is a 15kV 60A type and the output capacitor is air spaced. There are vacuum relays on both input and output. There is a Heyboer CCS 4500V 2A transformer. This provides something over 5kV on load - would be a bit more but my mains supply sags. There are separate meters for grid current, screen current, filament voltage, plate voltage, plate current and relative power output. According to my LP100 power meter it will provide 5kW continuously and 7kW if pushed. It is cooled by a 8" blade diameter fan and stays nice and cool. There are separate controls for bias and filament voltage adjustment, and filament, screen and plate voltages are step started. It is normally run in Class AB1, but bias can be adjusted for Class C if preferred." It can also be easily modified to add 80 and 40m if you wanted to. Roger can provide pix, schematics, etc. Contact info. email: [email protected] Cell: 705 988 0880 Address: 2728 Eden Township Road, Sudbury, OM, P3G 1M1 73 Roger Parson's, VE3ZI _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
