| Author |
Message |
    
Goose
| | Posted on Monday, November 04, 2002 - 3:50 pm: | 
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I wanted to tweak my base and broke both of the coils (slugs,screws were stuck) and they cracked in peices parts are L905 and L907 does anyone have or know where i can find these coils ?
It;s old but a nice radio and i what to repair it
all help welcome |
Allagator
| | Posted on Friday, June 13, 2003 - 7:40 pm: |
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Hey Goose count your winding on the towers and find a old radio to replace the old ones just make sure the legs are the same and the winding is the same !!!
hope this helps !!!
Allagator |
2600
| | Posted on Sunday, June 15, 2003 - 1:25 am: |
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Hey Goose,
First drop by RatShack and get a 64-2060 desoldering iron and a tube of 64-021 rosin flux. Won't set you back more than $12 or $15. They make the rest of this trick a LOT safer for the radio.
The first time you warm up the desoldering iron, take some fresh solder and "tin" the rim of the tip opening. This is an important step. It reduces the heat needed to melt a solder glob.
Dab a layer of flux from the squeeze tube onto the solder pads where the coils are mounted.
Suck the solder from the pins on one coil, and pull it gently from the board. Look at the underside of the coil. You will see a fresh, unbroken slot like the one you USED TO see on the top. Carefully unscrew the slug out the top hole, flip it over and screw it in from the top. You may need to clear small particles of ferrite from inside the coil form to make it thread smoothly.
Reinstall this coil, solder it back down, and repeat with the other one. The slugs are probably locked in place with a clear glue. Odds are this is why the slug broke instead of turning. Try a dab of nail polish remover to soften the glue before breaking the remaining good slot on the underside. The plastic coil form should tolerate acetone (nail polish remover) without softening and turning to jelly. A stronger solvent may do just that.
Simply "counting the turns" will probably not get you a compatible substitute. L905 is a tapped coil with all 5 legs wired. The layout of which winding goes to which pin will probably not match up by accident. L907 is a simple 1-winding coil that might be easier to substitute if the original gets completely destroyed.
73 |
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