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RADIOHF - FOR SALE COLLINS 75A-4 4:1 TUNING KNOB Have an A4 that has the old fashion direct dial tuning knob? You can change that all with this 4:1 tuning knob and mounting gears. The 4:1 drive is much more precise and easier to tune. The knob is new, Molded by a now deceased avid Collins collector. It's identical to the original Collins knob. The gear assembly is original Collins -- used but in perfect working order. You'll need to supply the two mounting screws -- probably taken from your old Collins 1:1 knob. These are very scarce. You really don't see them too often. $209 plus $10 US shipping for both the knob and gear assembly. Listing #1729684 by W0LC Submitted on 05/17/25 Submitted from syn-024-107-092-150.res.spectrum.com Click to Contact Back to Previous Page

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