Recent content by MKwrench

I have the Sears version of this radio, The VCO loop and the oscillators are giving me a hard time so I had to park it for a while, to ease my headache. Model # 934.38260700. After peaking 204 turn off the tone and double check the carrier balance (RT & CT201) then back to using a continuos...

Well, guess what..... It works, it works great, it even goes above 14v now... All 5 of the Fets tested almost exactly the same with only Uf (forward V drop) being off by 1mv on 1, It might have just been the tester too.... Nothing else on the board looked cooked, so I tested what I believed to...

I found a pack of five for the price of just one at the electronics distributors. I know that bootleg and subpar parts are sometimes labeled and sold to unsuspecting victims. The Amazon reviews of these were *mostly* favorable, and I'm not dumping a bunch of money into this thing when I'm...

I contacted Mega Watt by email today (Sunday) and John got back to me within a few minutes. <<<<On A Sunday>>>> . I wasn't expecting a response until Wednesday...LOL. He recomended IRFP460s for replacement. I looked them up, they're a smaller package, have less drain current capability, less...

Thanks guys, It only acts up while switching it on, meaning that I can freeze the effected area with the radio already on and working, and nothing will happen until I switch it off and back on again. Then the opposite, if it's acting up and I warm the effected area,it won't operate until I cycle...

Thanks for the input guys. I wish I knew what happened to cause it to suddenly Poof out. It was working fine, powering an NPCd PC122 and a DX250 on a dummy load to teast the pairing. I continued testing on my 36a Alinco P/S. I might try a set of IXFK44N50s, they're real close in spec. I also...

My Stryker is back on my workbench, It seems that when the temperature goes below about 60f, it loses RX and TX. I suspect a VCO voltage change causing an old fashoned "Out Of Lock" condition. I opened it back up and went to town with the freeze spray (When did that crap get so pricey?). It's...

My "new to me" power supply suddenly and violently poped it's fuse, I'm assumung from some sort of surge, because the same setup operates just fine on another power supply. When the fuse popped it created a bright flash like a quick welding arc, so its a good short. I just began testing across...

I just noticed the letter "T" next to it. I wonder if that stands for "transverse" or maybe it's a tantalum .... ??? . I I also noticed it heads right down to the am/ssb switch. So, this probably wasn't my receive issue in a.m. LOL I found a bad diode on the noise blinker board, that made...

It's an axial cap, that's why I missed it when I did the original recap. It looked like a diode or resistor to me. A radial went in with no problem after widening the legs a little. I had a choice of using either a 2.2 or a 4.7. I figured the 2.2 might make RX choppy, so I stuffed the 4.7 in...

It's not a "455", its a single sided matching coil. I just ended up winding another one from scrap parts, see post 9. When this 1st happened I did try a few different 455s in there, but either had nothing at the filter or no adjustment. When I 1st got this radio it was inoperable, with the...

I understand the rules, and wish to enter.

These have the hollow square adjuster hole, when I melted that wax it probably blobbed up underneath. Then while attempting to cycle the slug through its full range I broke it... It'll be a while till I can get back to it, I replaced that can with one from another road talker and I did have...

Thank you for your input, It's great to have allies in these situations. And, I didn't mean to CarJack Justins post, but when I saw the same radio I was fiddling with I had to at least add a little input...lol. I'm pretty sure I'll find the issue up on the mini board this stuff sits on. Im...

Here's my old Q701, it's definitely tired...lol. I replaced it with a good used 2SC1675 I had laying around. The 12.320 and .319 seem to work fine. Now that I have gain, it only grabs the double or the fundamental depending how I peak T701. I think the triplets are there, but just too weak to...