[USER=60279]@Signal Kicker[/USER] - Wow, lots to answer for...
Ok, for simplicity, the L12 and L13 are 0.8mil (~16-20AWG approx) and you're better off using a simple drill bit shank or the "Stem" of a Philips head #3 or #2 of the right shaft diameter that once L12 slides on, that's what you "re-wind" the old wire on it - as a form, to get your needed shape and diameter.
- No matter what, many times I've had to straighten a coil wind even from a spare donor radio to obtain the proper "diameter and working value" to re-install. Seems that even a minor thing of the thickness of the enamel used on some solid wire is why some wire seems to be sold as a bigger AWG value than the actual amount of copper in the spool you really have.
Yes, that coil wind is actually 7.5 turns - look carefully, count the number of bumps, it's original 8 "wind" but remember that 8th wind is incomplete, it's stops at the 7. 1/2 stop of turns - so you can insert it into the board.
When you go for 6 turns you're selling yourself 1 turn short and get a big impedance bump - and you can't get that value back, once you've taken off too much of that which was trimmed off, you'll have to get another wire and wind that one all over again and tensilize it to make it work - with the right number of turns.
L50 and L26 both being Ferrite beads, both are used even in the PC-78 and PC-66 - but they are simple Ferrites - have a diameter of a Torx #5 (pretty fine) and feed thru - permeability? Anyone's true guess, they just list it as a simple ferrite bead
Here's some photos, some are installed on the lead of the Limiter for Cobra, while another lays flat - per Uniden style. and a better shot of L12 showing the siderail winds
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A typical Cobra 29's TX strip...
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Hope this helps!
