[Premium-Rx] Mackay Marine 3031A tuning glitch unglitched

[Craig Roberts]

Some days ago, several folks contributed welcome and useful advice 
regarding my 3031A's opto-coupler hiccup (quick tuning would "confuse" 
it). Thank you all very much for the help.

As it turns out, the problem was apparently mechanical or optical. The 
tuning knob assembly (shaft, chopper disk, flywheel) and the 
opto-coupler PCB board had been removed by a previous owner for service. 
I'm guessing it was an owner rather than a Mackay Marine tech since 
resoldering was sloppy and mechanical reassembly imprecise.  I removed 
the assembly and board, cleaned it all up, lubed the shaft and bearings, 
re-installed the group, resoldered the connections neatly and re-aligned 
the mechanical and optical components.  The tuning is now very smooth 
and error-free. 

Needless to say, I'm happy the fix was this simple.  Now, I  must get to 
work on building a companion transmitter. I wonder if I can share the 
receiver's tuner??

73,

Craig
W3CRR