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Resurecting TRC457

Mork

Member
Nov 21, 2006
28
0
11
Nfld, Canada
Hi Folks,

I recently aquired a TRC457 in great condition but not in working order.

The old man I got it from bought it new in 1978 and used it up to 8 years ago when it just would not come on one day and he stored it under his bed.

The radio had never had the back off it so I know where I am starting from.

The power supply was dead which I have repaired (regulator). Now the radio comes on, but will not TX or RX on either AM or SSB. The internal relay clicks when the mic is keyed and the meter changes color as it is suppose to but there is no power output nor is there any receive. The audio amplifier appears to be working as you turn up the volume you can hear the increase in power to the speaker and the PA is working well.

Any ideas as to where to go from here?

Thanks for any help.

Jim
 


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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.