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There is one on eBay as of now. Doesn't look to be in too bad of shape, but apparently has an issue with the output power. Radios of this age really need a recap.

In my mobile setup, the foot warmer would stay transmitting after unkeying while on SSB. Turned out to be a bad coax from the radio to the amp. Changed it out and things were ok. I did double check the magmount antenna with the old MFJ antenna analyzer and things checked out.

Is this in a mobile setup or home? What do you have for an antenna setup? Coax cables in between in good working order?

Good radio! Apparently after some time the display can go bad on them, but like where pixels go missing or lines are going through it. Probably not much of an issue if you keep your radio inside VS leaving the radio in a mobile setup on many hot days/extreme cold.

Yesterday I went ahead and recapped the whole radio. The two resistors in question seem to be ok. (Maybe not the 1k resistor as its at a 2.xxK value. I forgot exactly what it was.), but they were at least in their right spots. As I suspected, it needs the help of that power mic. Looking at...

That Disclaimer is great! :D lol. Too good. It will take me a bit to digest and understand whats going on,but hoping it will settle in and I can understand. Thanks again for the explanation. With these changes, do the rest the Cybernet boards suffer this? Like is there a specific Cybernet...

Appreciate the information. Does it still yield results by swapping C42 and C43 without replacing for a 1969 final? I just dont have a way to retune if I do swap out for a 1969. I really really need to learn to read a schematic and not be instantly confused...

Just got the radio in. It is the PTBM050C0X. Didnt realize the power connector on back has the polarity different then that of a standard Cobra power cable. I will swap the wires around inside the radio so one doesn't burn up the radio.

Thats a good rule of thumb. I'll remember that one.

You are A ok. :) No rush. I was messing with a SBE Sidebander II radio. Kinda neat. AM seems to be solid, but SSB struggles to get much modulation without yelling into the mic. It was included in a trade a couple years ago. Not in dire need to get it going lol. My GE 3-5811B should arrive...

Good to know. :) It will be fun to see how the radio does once it comes here later this week. I will for sure report back on my findings.

That is pretty neat! Do you know what Cybernet board number is in that radio? I was going to try and compare it to other radios. From what I understand, most Cybernet boards need a power mic behind it. Otherwise, there is almost no modulation without literally yelling up close into the mic...

Pretty good lol.

Hello and Happy Easter! I have a few General Electric 3-5813B radios that may need some TLC. Sam's Photofact 235 has it. If you have Sams 235 and when you are able to, can you please scan the alignment as well as the schematic. (I am curious to look over the audio amplifier to see if it falls...

Now I am on the hunt. The powered mic versions of the General Electric radio can sound good, but one has to basically be up very close to the mic. The one I do have now is a GE 3-5813B. I dont have a schematic on hand or know what exactly I am looking for, but I wonder if it has the same issue...

Just like that, found one in decent shape (At least on the pictures) on eBay for a whopping $25 free shipping (not including taxes.) Purchased. :) With that being said, was a bad capacitor the main culprit this entire time? would leaving the resistors alone still be ok after a recap?

Too damn awesome! And a GREAT job you kept at it! I was wanting that exact radio a couple years ago, but was afraid to buy it as it isnt one that reads a "power mic" in the label in the front.... Now I will keep an eye out for the radio you fixed, and do the necessary changes to it. :) I...

You will be the very first I notify when I sell it. :) Thanks for keeping up yer interest in it. I will try and get some pictures of it with it on and check for transmit/receive. Maybe not today but currently going through stuff in the Garage.

I havent sold it yet. I was randomly thinking about the radio last week, and the fact someone on here asked about it lol.... I should power it up to be sure it still works. :D I wish I could sell it locally so I don't have to ship something like that out. I live in Kansas. But I may have no...

Thank you so much for your input. I may still have the TIP42 transistors I bought I think earlier last year or the year before.