[PVRCNC] FS SB-1000 0.8 KW amp

[alsopb]

Guys,

$425 gets you the following Heath SB-1000.

This is a single 3-500z amp is in "too good" condition.  Bought it 
with the idea of conversion to 6M. It turns out that the conversion 
would involve hacking up a perfectly good 160-10M amp. (Not really 
interested in removing plates from the load/tune caps.)

Had it tested at Omega Electronics. Bill replaced the load and plate 
verniers and the plate choke with the pi-wound Ameritron unit.  The 
original Heath choke is know to have resonant points around 17MHz.

His Bird wattmeter yields the following output with 240 volts and 100 
watts drive:

160 800 w
80  900
40  950
20  850
15  900
10  800

Currently wired for 240v but can be easily rewired for 120v.

T/R requires the ability to switch 12 VDC at about 100 ma.  I whipped 
up a circuit which works with the IC-706 and hot shots the amp T/R 
relay to avoid hot switching.  Circuit diagram is available.

73 de Brian/K3KO
252-431-1153