Projects 74 BT radio restoration

I found an old Bendix 74BT radio for a 57 to 60 ford F100 in need of a little TLC and decided to restore it.
The condition it was in before;



The new circuit board is one I had to make, the old copper trace lines were peeling up from the actual board when I tried to remove the solder connections.

The final ***embly was the biggest trick, the original paper schematic I had was a life saver

Ceramic capacitors would have been awesome to find, but, I couldn't so I settled for a few of the modern equivalents.


A little light cleaning with a br*** wire wheel and it was looking better than I could have hoped for



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Nice job!
I am sure you could make some dough refurbishing them. Now if you could wire it for an Ipod! That would be cool.

 

great job! I have allways looked at the printed circuit board as something that would make radio repair easer. I guess not in this case.

 

Thanks, I figure I can get a headphone jack wireless transmitter ad just broadcast my own am channel off if my iPod. Wiring a radio for one is over my experience level and out of my knowledge base. Refurbishing them would be great, I enjoyed doing this. All I need is one tube and I'm quite certain it'll be ready to go in my truck.

 

"All I need is one tube and I'm quite certain it'll be ready to go in my truck."

What tube are you looking for? I have a few old tubes and if I have the one you need, it's yours - free to a good home.
-Bob

 

I'll have to look at it again, I don't remember off the top of my head


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The tube is a 12CX6, looks good but an electronics shop said he wasn't getting any power from it.

 

Clint I just found your thread, agian great job rebuilding your radio! Truely amazing rebuild. I have 2 older radios, one is from a 1951 Chrysler New Yorker and the other is out of a 40's Plymouth. I would like to get up with ya and see about rebuilding one if not both of them and get your input as what it would take to get them going agian. I'm not looking to sell em I would like to put one in the 50 Dodge and the other in the 25' Dodge.

 

I would also like to pick your brain and see about adding a audio jack to plug in a MP3 player. I know some Avi guys that could probably point us in the right direction


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HOW DID YOU FABRICATE THAT CIRCUIT BOARD? That would make my life repairing old car radios a whole lot easier!

 

It's really easy to do 59Edsel. I bought a blank copper board from RadioShack Catalog #: 277-159 and etching solution Catalog #: 276-1535. You trace your circuit out with a sharpie marker. Once your trace lines are all marked you simply throw it into the etching solution and agitate the fluid in a rocking motion. All the copper under the sharpie lines will be untouched while all exposed will be washed away. Once the exposed copper is gone you rinse it off under water to stop the chemical reaction and clean off the sharpie to expose your new circuit board. After all that it's a simple matter of drilling your holes and soldering in your components. The solution you used to clear your board will stain just about any surface it touches, or eat cloth. Be careful, I found out the hard way by ruining a shirt and staining my porcelain sink when I did this.


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Ah, I've heard of those kits. I didn't know they could turn out that nice! Thank you, and good job!

 

very nice! i have one of those radios tucked away somewhere,time to dig it out.

 

Thanks 55 dude. That radio would make a nice spring project, kind of a pain in the *** to find some of the older components though. It would help if you find the radio schematic first for your model.


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Im doing the same radio.