Technical Materials RX..cq the fellow who bought my gpr-90 at saulte ste marie.
 

Looking for the chap who came across the US border at Sault Ste Marie
MI/Ontario and bought my TMC GPR 90 Rcvr. I found what might be the
missing coil/If transformer ..that was the problem with that radio. I
can take a few digital photos and we could figure it out.
Also..I have a manual that I came across for it as well. email me at
( I can photograph the coil and send a digital picture to
you). 73 Earl VE3AB