Astron SS30, SS-30M, with meters
RF quiet, 30 AMP power supply, still less than $100 at this time.
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=5771634451

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73, Dan Magro W7RF
HENRY RF Power Amplifiers
BIRD power measuring, TOHTSU coaxial relays
SAMLEX power supply, RFI snap-on chokes
www.radiodan.com