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so i just rewatched the youtube videos that stickman did with his 959's and it appears he left that 7t coil alone and got the juice out of em. im wondering how he went about it

thank you loosecannon. the 7t is still in there. gonna give it a whirl. radios already decked out with channels, unlocked clarifier, so now it's getting duals and im gonna try the (more involved) swing mod at the pre-driver stage like in that thread. setting it up to drive a big box

my 959b has a 390pf cap on both sides of it stock off the floor. where would i get this coil or the dimensions of it? getting around 30ish watts with both finals in. one of the pots is not reaching 4v at max. maybe both finals sitting at 3.02v has something to do with that.

after reading this i ordered some 1973s. got a 959b that i'm converting to a dually by copying the schematic of a 2517/99v output section instead of doing the cbtricks method

yea i wouldn't clip the limiter. never actually got more power that way. just use VR5

thats where i got the 6 and change price. pretty sure its the only option for some kind of new old stock.

the RF board is the same as a 29gtl. so the same mods involved as a 29

yea, it seems like thats steep for a can with a slug in it. it also seems that CB-specific outlets sell higher than something like mouser or a general parts source

LA189

have a couple of these chassis rigs that have random intermittent cutting out on TX and it seems like this is the failure point. i guess there is a NOS electronics joint online that has em at 6 and change a pc. emailed to see if i can get a break on that price if i get like 20. if anyone has a...

ok, so only the zener got taken out. got the resistors correct to switch the 1pill driver on and off, im getting 130 PEP (mfj watts), 60RMS. and i can go as low as about 4W deadkey with the clean swing (see pinned post) and a B bias on the driver to keep er from pinching. the driver does not...

ill bite: i got a ladderline fed 1.25wave non-res doublet, a 4:1 balun, and a tentec 229 tuner. keeping losses between balun and tuner low is paramount. that coax lead through the window should be as short as possible. one of the best antennas I ever built

npc doesn't do much. i feel like this is a service menu adjustment to be made

c218 is still is new fet versions like my 2017 959b. thats about to change

you should peep the pinned thread about the more involved swing mod using a TIP142 darlington upstream from the mod transformer. standard cap/resistor mods to do this thing square and pinch off a lot quicker and easier on the scope than on later cobras. the 1st radio I tried it on was a zachary...

i have not done the resistor addition, but i get respectable swing from 10W and I set the low power to 3W for now, get around 12 mfj watts from it. my question is if anyone got in there and did something to sample the audio and manipulate the audio drive to full from a low carrier to...

the FM power at "40w" i believe. do not recommend setting it that high

megawatt 37a switcher

so D17 which is a zener diode, im assuming 9.1v is removed, waiting on some to arrive in the mail, and a board trace between that lead and the diode/rest of the stuff cooked apart like a fuse. i am hoping that reconnecting that, changing the zener will bring everything back up. now we wait

doing a single pill MRF454 on a zach T and i think i just took a bunch of stuff out to trigger a relay, i tapped off of the JP13/D17 junction, and when messing around with the trigger circuit, i pulled that wire off on the other end. I let it go, and the end of the wire rubbed against an output...