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Its been recapped.I tested every cap that I put in because I've had bad caps sold as new to me in the past and that created some serious power supply issues. I only discovered this bad disc once I started working on it, and the first step was to check to ensure 13.8V. I found 17 volts which put...
Done! No kidding! Who needs a power mic when you have mod like this. I had to tone it right down its a screamer! Thanks for that tip!
Sadly, I am still having constant issues with ct2, ct3, and AM. Turn one and it offsets the other. Then adjusting AM through it all out of alignment again. If I...
I also have another annoying issue with my audio. People say it sounds pinched. Even if its cranked lower than specs. I dont use AM do I like clean audio. Is there a mod or trick I can do to clean up the audio and get rid of the pinch sound? Its like the amc kicks in slightly after I modulate...
I picked up a buck power converter. I think it willwork great and its small enough to fit exactly imside the transistors heat sink space. I can use all the components and it will replace only the transistor. Problem is max draw is 3amps. Schematic says the radio uses 2.6amps full ssb mod. I'll...
Tr401, cct trace is 27. Seems to normalize at about 90° when in rx. Ssb goes up to 120. Im gonna replace the paste with a top of the line CPU paste.also add a 2 inch muffin fan that will expel the heat fom the rear. See what that will do.
No not off hand. I can get that number off the sams today. Its the big to3 c1618 left back corner. Ive heard talk of people saying its just better to swap it for a brick switching power supply. I do have one here. 30 amp. I just need to take an AC tap off of it for the clock. Im using a 100 amp...
The transistor gets really hot. The heat sink too is really hot. Im gonna redo the heat sink compound and see how it goes. I will remove the load from the power supply section by lifting the orange wire. Then do a current draw test to see the flow. I think the transistor itself could be the...
Ive been working on a 457 here and there. Recapped it including the tantalums. Started to do the alignment and found there to be 16 volts out rather than 13.8. Pulled the regulator and it tested fine. Ended up being a disc capacitor that had a 2k ohm short across the 2sc1618 base to collector...
Id like to unlock a few clarifiers. Namely the cobra 2000gtl and realistic trc457. Im looking for TRIED AND TRUE schematics along with tutorials. I prefer receiving information from members who have improved versions that keep the center on the clarifier rather than to get those "quick mods"...
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