[Hallicrafters] SR-150 heads up 2
Jim Liles
james.liles at comcast.net
Sun Feb 22 21:34:28 EST 2009
Should have included the work around for the antenna relay problem. If you
choose to use a different antenna relay consider the following. Tie 12
volts to the wire that runs from the VOX relay, K1, to pin 11 of the power
supply cable and the pin 12 wire to the 12 volt antenna relay that you have
replaced. Also add an 800 ohm resistor from the V13 cathode to ground.
Remember the standard configuration for K2 and K3 is closed for receive
mode. Verify the voltage at the 6AQ5A cathode is close to 16 volts receive
and 1.5 volts transmit. Kindest regards Jim K9AXN
More information about the Hallicrafters
mailing list