|
Post by coathanger on Nov 16, 2012 10:31:55 GMT -5
Anyone know what pot is used to drop the dead key on the old cobra 85?3s.
|
|
Sandbagger
Administrator/The Boss
Posts: 6,250
|
Post by Sandbagger on Nov 16, 2012 12:47:26 GMT -5
Anyone know what pot is used to drop the dead key on the old cobra 85?3s. There is no "pot" to adjust AM power. Power is adjusted thru the various interstage coupling coils. However, it is not advisable to detune a radio by more than a watt or so using this method. If you want to drop the dead key power on a straight AM rig, it's better to put a dropping resistor of between 10 to 30 ohms in the B+ to the driver's stage's collector. A 47uF cap across that resistor will preserve max peak power, for greater swing.
|
|