SELL: Dedicated 6m Heath SB220 ssb/CW linear amplifier in 9++
condition. Amp runs a pair of full output Eimac 3-500's
developing 900-1000W output with 90-100Watts of drive. Outwardly, the
unit appears to be stock Heath in every detail except that the
bandswitch now
controls the t-match exciter input tune control for a perfect 1:1 SWR.
Interior
changes include a specifically designed, broad banded tank circuit and
tuning capacitors that alllow for full 1 mHz excursions without
any retuning.Perfect for chasing the elusive DX on band openings or
contesting. All circuits are stock Heath and all meter positions (HV,
grid,rel
output) function normally. Currently wired for 220VAC but can
operate on 110vac. Complete with the Heath schematic with circuit
changes, and
a spare zener diode. $750+ shipping Ron W2CQM New York City
http://homestead.juno.com/w2cqm/files/Heathamp6m2.JPG
http://homestead.juno.com/w2cqm/files/Heathamp6mint.JPG
Epilogue: See QRZ.COM for the listing of the most recent articles
written for QST and 73 Magazine authored by W2CQM.
http://www.qrz.com/callsign.html?callsign=w2cqm
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