[Boatanchors] Collins R388 Break In Switch & Circuit

[manualman at juno.com]

I've had a R-388 for 30 years and never heard of "break in switch
circuit". What does it do?

Pete, wa2cwa

On Tue, 3 Jan 2023 19:49:05 -0500 "Mark Johnson" <mvjohn at sympatico.ca>
writes:
> Happy New Year Team,
> 
> I just acquired an R388 that has been through a very tough life, but 
> like
> all Collins gear, it's still working. 
> 
> I want to get it back to full form, but I can't find any info, or a  
> the
> circuit diagram for the break in switch circuit. Lots of sources for 
> an R388
> schematic, but none of them show the break in switch circuit. I 
> found a tech
> bulletin that describes the Break In circuit, but no actual 
> schematic. 
> 
> It just annoys me to see a radio with wires cut even if the circuit 
> in
> question is not necessary. 
> 
> Thanks!
> 
> Mark 
> VE3LU