TRC-457 SERVICE MANUAL

[Copycat32]

Hi all.. I just acuiweed a trc457 totaly vergin never has the cover off.. Need to go through the audio as its clipping so bad I can't get more then 20%audio out
Looking for a sevice manual and any tips for the audio
Thank You
73s

 

[TM86]

Service manual available here courtesy a forum member who has since become a silent key:

Realistic TRC-457/458 Service Manual

Realistic TRC-457/458 Service Manual

www.worldwidedx.com

Tips and tricks from another forum member's web site:

HOME | 858ssb

unit399.wixsite.com

I'm in the "It's old, recap it!" camp regarding the 457 and it's electrolytics. Others may disagree. I do recommend replacing C179 (2.2 microfarad tantalum) with either an electrolytic or a higher voltage tantalum. But that's just because I had one explode when I had a radio keyed up.

Now I'll shut up and let the people who actually know something chime in.

 

[unit_399]

Use the TRC458 factory Service manual posted on this forum. Identical chassis no digital clock.

Realistic TRC-458 FACTORY Service Manual

- 399

 

[BC Coyote]

acuiweed

Acuiweed ? What language is that ?

 

[Copycat32]

Acuiweed ? What language is that ?

Fat fingers.. Lol

 

[Copycat32]

Acuiweed ? What language is that ?

Aquired..

 

[Copycat32]

Service manual available here courtesy a forum member who has since become a silent key:

Realistic TRC-457/458 Service Manual

Realistic TRC-457/458 Service Manual

www.worldwidedx.com

Tips and tricks from another forum member's web site:

HOME | 858ssb

unit399.wixsite.com

I'm in the "It's old, recap it!" camp regarding the 457 and it's electrolytics. Others may disagree. I do recommend replacing C179 (2.2 microfarad tantalum) with either an electrolytic or a higher voltage tantalum. But that's just because I had one explode when I had a radio keyed up.

Now I'll shut up and let the people who actually know something chime in.

Thank You ill check in to it.. Looking at Klondike mikes for a kit

 

[TM86]

Thank You ill check in to it.. Looking at Klondike mikes for a kit

That's usually a good place to start. Good luck, I hope you bring her back to full health.

 

[nomadradio]

Mike's kits are the real McCoy. The cheapest capacitors on Ebay have questionable reliability. Mike uses reputable-brand parts.

I'm a repeat customer.

73