Bias and Sequenced Grid Block CW Keying (soon)
Tank Circuit
The tank circuit in the Globe Scout series does not work very well on lower bands as built. The 365 pF loading capacitor is much too small for lower bands, but it can easily be fixed without tearing up the rig. An easy patch without destroying the rig is to solder a 220pF 1000V mica capacitor across the loading capacitor. Make up a 680 pF 1000V capacitor in a PL-259 connector also.
When working 40 and higher, use the standard RF output port.
When working 80 or 75, use the "doublet" port.
When you work 160 meters, use the doublet port with the 680pF screwed into the empty regular RF output port.
WRL tuning instructions:
Correction For Oscillator Pulling
Remove the ground from the driver tuning capacitor from the crystal socket.
Route this ground (bare buss wire at ground lug of driver capacitor) to the terminal strip ground where the driver bypass capacitor is grounded. This is only a partial cure, but it is much better than doing nothing about pulling.
Audio System Modifications
Original Circuits
Meter shunt is R9, 0.4 ohms
since 2004/09/27