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Handy Andy, I would have posted sooner but the forum's security certificate had expired and I wanted to be sure they fixed it before logging back on.
The little 21 GTL seems to be alive & well again it seems after changing 3 caps. I'll dead key 5watts and swing to 18- 20 most of the time...
I took a look at a couple of my junk radios. Some of those caps looked questionable too, so i ordered an assortment of caps from amazon. Looking at those radios, I may wanna try tackling fixing those too. Later. Plus if I removed any those used caps, the legs would be too short to feed into the...
Thanks a bunch for your help already. Frustrating to a degree I'm sure for seasoned techs to explain things in the simplest of forms to newbies. Yep, I'm learning. Wish I could have taken some electronic courses when I was younger. I enjoy fixing and learning as I do. I appreciate your patience...
I do have a couple of junk radios that I'll check for comparable caps. If that gets the radio to work, then I'll get some new 24-36v caps and then swap them out.
I just home from work and still had the cover off the radio. Before going upstairs, i took another peak at the caps that handy andy mentioned..well, I found one that I definitely will be changing out. It appears to be C66 on the board. 470uF 16v. Note the white crust on the top edge and the...
At the risk of sounding ignorant, check at the final at the rear of the radio, right? Which legs to chk? The process. Elaborate please. What readings will tell me they're good or bad?
Thanks. That's great information! The power adjustment at the rear still has wax on the top of it, so doubt it's been messed with. Lemme try to upload at photo of my meter.
I do appreciate your input on this HandyAndy.
I did read on a similar thread on about a cobra 25 checking the audio chip 1st and last leg for 13.8v. That's about where those pesky stink bugs were huddled up at on the board.
I'll check those voltages and check receive on the 21gtl using an...
I'm familiar with the speaker jack sw and how it disconnects/connects the internal spkr. I could remove the speaker for now just in case it's interfering with the audio circuit. and clean up the sw plug a bit also, and press down with a plastic tool on the part that reconnects the internal spkr...
Yes. The board is a PC417ac (of the ac makes a difference). Re. The internal speaker...should i unsolder it and wire up a known working speaker? I have some tuner cleaner. Would spraying some on the ext speaker jack help? I did shoot some into the Dynamike pot. No change.
I bought this nice little 21gtl for $10 this weekend. It didn't appear to have been worked on and was anxious to try my hand at a few mods. 1st I checked the PA. Had audio. Then hooked dummy load and meter. Dead keyed 5 watts and virtually no forward swing. So I powered it down. VR5 was all the...
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