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ok i got tied up with other things like shoveling snow. SO ANYWAYS:
ALWAYS use mica insulators on TO-220 transistors. i threw a cheap rubber insulator behind the NPC-RC darlington bolted to the case, jabberjawed for hours, and it apparently failed so im just gonna swap the 4003 diode to be...
looking at the schematic, i got more questions now. theoretically if i was in PA mode i wouldve shot that voltage throught the transformer on the primary, but i dont think i was in pa mode. so maybe the secondary sh1t the bed just because....idk it felt like it?
yea, the rfx is fine. not really looking forward to that labor or for the recap, mods, etc i already did to go into the trash. such a waste of time. im not looking to throw the rfx on a junker either, the rig really looks good, and its an older sidemic. also, the serial number tag on this got...
ffffff. so i just put a new choke, power connector etc on my 29, extensive work incl a rfx has already been done. goofed up and there was a solder bridge, from the pad that recieves the power from the harness to the positive pin of the PA jack. now the modulation transformer gets hot and smokes...
i used a double zepp-style vertical and it worked pretty good. but making each leg 5/8~ and shortening the ladder feed to find the 50ohm point definetly worked better for a big ol broadside gain lobe
check out the extended double zepp. near-lossless balanced feed matching, 1.25 length total, big broadside gain. if you want to match a full wave, you need a quarter wave piece of ladderline, which makes a 50ohm load, and then a 1:1/dirty coax choke
just got into messing with this. i had to build a vox-ptt on perfboard which involves a preamp. its pretty neat, but i see more europeans in the early AM hours than anything. its pretty dead in the evening when i come home from work. anyone on here mess with this?
if im not mistaken the n2 is a pair of the ekl9530s, and the few duallys i've built with them top out around maybe 200 with 30 in PEP. the one time i saw 300 was when i make a single 9530 driver and dumped 80 watts into it (do not recommend)
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