[R-390] A vs non A

[Roy Morgan]

On Oct 9, 2012, at 4:37 PM, Charles P. Steinmetz wrote:
...
> Other than retuning the IF if it has been messed with (which,
> hopefully, it hasn't),

I seem to remember an alignment procedure that uses slightly offset  
frequencies to stagger tune the non-A IF system.
I cannot find it however.  Does anyone know where that is, what  
manual?  (MAYbe the preliminary manual for the R-391.)

> and the heat generated by the voltage
> regulators, which can be controlled with fans,

I have a picture and notes about a fan plate I cobbled up to hole a 4- 
inch computer supply fan against the side of the radio.  It does a  
wonderful job of cooling.

Glad to send it to anyone interested.

Roy

Roy Morgan
k1lky at earthlink.net
K1LKY Since 1958 - Keep 'em Glowing!