Re SB 200

John Barkow KD6PT at AOL.COM
Thu Apr 4 11:38:06 EST 2002


Hi Gang.  Thanks for all the replys. Harbachs lists several sources for he
doorknob capacitors but they are very expensive now...about $14.00. The idle
current is steady at 90 mils and when fullly loaded, grid current remains low
but plate current is about 700mils with the new tubes. This is true on all
bands.  Decreasing the drive does reduce the plate current, however, when the
plate current is reduced to around 500 mils, the output power drops to about
300 watts CW. I have the Harbach power supply and soft-key modules installed.
 The old Citron tubes ran 500mils fully loaded with 100W drive and about 400W
output.
Any other suggestions?
John kd6pt

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