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Just got it setup again. Will be ready for both Saturday and Sunday. :) (This was the Kraco from earlier this year I fixed on up. Got the crystals swapped for channels 1-8, so Channel 6 on that old Kraco is actually channel 37. :)
See ya'll there!
I suppose without pictures of the inside, is reducing the bias current a good thing or was that opposite of what it needed to be? This is the board. (Taken off the internet.)
Ok........I will call it upon myself.......
***Riiiiiiiiiiiise from your grave!! :D
But mainly because if this amp is truly an AB Biased amp or not.... Inquiring about it. :D
Sadly many radios probably fall in this category. Never know what is inside. (Better than a roach infested radio, but the roaches died 15+ years ago.) All you can do is just clean it up the best you can. Better than letting it rot away another 10+ years.
Its been a bit since trying 16 LSB, but sounds like this next coming weekend is the time to try it again. I will hope 40 USB stays busy on that Sunday. (I have my dipole centered on 37, so 16 may be pushing it just a little bit... :P But should still be ok.)
I have a 350z from my old man. It has not been powered on since the early 1990s... I know better than to just plug it in and go. At this rate, the capacitors and such need replacing. But from what I understood, the 350z isnt an amp to run. I was hoping I could get mine gone through and be...
Here is the link with pictures on how one would go about disabling the pre-driver.
KL 503 Pre Driver disable.
After some reading, turns out the HD version still has that pre-driver but with some changes to it. (They shoulda just dropped that pre-driver all together.)
I myself can only repair the little 203P amps. Managed to get a few back from the dead. I believe the KL-503 HD is just the KL-503 but without the 1 transistor to drive the rest of the amp. Just curious how many watts were you giving the amp? I honestly never go over 10 watts on SSB to the...
That video had the correct information. This is how it should be:
Put the purple wire back to where it is in the picture (Its original spot), then remove the one side on R303. This corrects it so both TX/RX is the same.
Upon doing this, I learned my radio is in dire need of help. AM works...
Hello,
I finally brought out the good ol Slant Face Roadtalker SSB radio. I honestly forgot when i did the clarifier mod to it. (Must have been a few years ago.). I did open it back up and seen that I already moved the wires and soldered them to the places they needed to go.
***Purple wire...
I used the MX-4 cpu paste. Has been fine so far. I recently took apart the RM Italy 203P and the paste was still fine and not breaking down/flaking away. I suppose I can keep an eye out more on the radios/amps of mine I used it on so far. CPUs and GPUs of today get extremely hot and running...
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