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Should the base bias 10 ohm resistors be upgraded to 5 watt, or would that only serve to increase the time it takes to burn if a fault should happen? What wattage handling should it be?

Oh no that's unfortunate. I run current-heavy USB devices on a powered hub, I feel that would fry before the PC but I could be wrong. I hope you get it straightened out.

Is C87 the correct injection point for the EXPO 100 A in a 29 GTL/LTD?

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You need a sensitive RF probe that won't load those test points down to read them. Another option is to inject a 1 khz tone while transmitting and adjust for 27.204 mhz for LSB and 27.206 mhz for USB while reading the transmitter output from the antenna jack into a dummy load. That's how I did...

I vaguely remember my uncle had a Craig 23 channel base at the farm house, he used it to talk to the folks driving tractors on his land. He aged and gave up farming and he gave it to me when I was about 16. I can't help you, but your post unlocked an old memory. I had no real experience with cb...

Is this the one?

The image or link is broken or removed, you may still see it if it's cached but we can't. Can you repost it for the world again LC?

I would look it over for backwards capacitors especially around the audio chain. Also, the audio IC may not have survived the abuse.

Check the power supply, Nomad points out an issue with it that is over volting the radio and trashing the audio IC. https://www.worldwidedx.com/threads/oldest-galaxy-base-kinda-just-doesnt-say-galaxy.267905/

Yeah, what Mike said, and if the ext speaker Jack's internal speaker disconnect contact get corroded, the internal speaker either won't work or will be faint/scratchy. That wouldn't cause the always TX light. That's likely going to be a diode, capacitor or IC issue. The voltages at IC4 during...

I'd look at ic4 4558, the tx switch/mic amp. Really concerned with voltages between the pins 5-8, that's the side that handles switching. I have seen them go bad.

It's worthwhile to keep a stash of gifts for her in a hidden location, and a few cards too. Sometimes you forget things or need a "get out of the doghouse" contingency plan.

I picked up an analog 300 amp ammeter and analog 15v meter for the stacked server supply I'm building. Looking for a case to cram it all in.

Yep, C537 was a 56pf, replaced it with the schematic value of 47pf and it's adjustable to spec now. I love it when things work out like that.

Got a socket in today, replaced the IC506 and she's counting on all fingers again. I think one finger is longer than it should be, reads 500 hertz high and CT501 won't adjust any lower. I see X501 is running about 250 hertz lower than the stated 10.4858 mhz, maybe it's aged, maybe I can nudge...

Glad you got it going, I was leaning toward the IC fault but like to verify before replacing. You should still replace all the 10 volt caps however while you're in it. Good job.

Chicklet mylar capacitors can also fail, although not as often. I wouldn't overlook them. If you see any brown glue gooped over any components, remove it. Sony bond glue is corrosive and conductive, and causes many odd symptoms and failures.