[R-390] Series 500 IF Module

[Larry Haney]

Hi  Byron,  The 2 places I know of for R725 info is 'google 'R725 bama''
and on R-390A Rebuild Part3 (radioblvd.com)
<https://www.radioblvd.com/R390A_Rebuild_Part3.htm>.  Have fun.

Regards, Larry

On Mon, May 27, 2024 at 6:46 AM Byron Tatum <bjtatum1 at att.net> wrote:

> Hello-    I am considering converting an R-390 IF module to fit into an
> R-390A mainframe. I have some info on this but have seen posts that a
> schematic for the actual Servo Corporation Series 500 IF module exists. I
> have searched for one to no avail.     I was hoping to find this schematic
> to compare it to the R-390 IF module and aid in the conversion.     Also, I
> would like to add any R-725 technical info that is available to my files
> here in order to study.     Will pay any costs incurred if copying is
> required.Thanks all,Byron W5FH
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