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Cobra 29LTD Classic parts problem (L19 inductor)

Daveb1972

New Member
Nov 18, 2020
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Anyone have a source for the L19 incuctor? I broke the damn slug, and I cant seem to find one. I also cant find the specs for the original part so I can match one.
The part is labeled KEI 116 AP
Cobra number 046-025-9-003
and alternative part LA275
Any ideas?
any dead chassis one could pilfer the coil for me?
any accurate schematic for the KEPC-060-F chassis?
 

How bad is the slug broken? If it’s just the very top portion, remove the can and screw the slug out from the bottom. You should do that anyway since trying to dig it out with whatever tool may damage the threads or coil. Re-install the can and screw the good portion back in from the top. There’s a fair chance proper alignment can still be achieved. In the future I recommend using a ceramic alignment tool. Never use metal. Plastic is fine, but often doesn’t hold up under stress or maintain a perfect fit.
 
I did try to remove the slug from the bottom, but it broke there too. I might see if I can harvest a slug from another can from the scrap pile, but pickins are slim.

The VCO alignment instructions I am using (I have found 2 versions with different instructions) L22 adjusted to max on O-scope while probing junction of R85 and pin 6 of IC2 while RX on ch 19, then adjust for minimum difference between RX Ch1 and RX Ch40.
Then in TX no mod Ch40 adjust L19 for 3.2V on juncyion of R88, R89

does this seem correct for this board?
 
I did try to remove the slug from the bottom, but it broke there too. I might see if I can harvest a slug from another can from the scrap pile, but pickins are slim.

The VCO alignment instructions I am using (I have found 2 versions with different instructions) L22 adjusted to max on O-scope while probing junction of R85 and pin 6 of IC2 while RX on ch 19, then adjust for minimum difference between RX Ch1 and RX Ch40.
Then in TX no mod Ch40 adjust L19 for 3.2V on juncyion of R88, R89

does this seem correct for this board?
Hello you might check with
Barkett Electronics PO Box 178 Trinity, Al 35673
they have all kinds of parts
 
the good news is that the 29LTD is the most ubiquitous radio on the planet, and a donor radio can most likely be found for around 10 dollars plus shipping.

start looking on ebay and shopgoodwill.com and you'll find something within a week most likely.
LC
 

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