Topic: collins 30L1 question ? (Read 1727 times)

N3JBH · « **on:** February 03, 2005, 10:39:27 AM »

how do you make a adapter to go from the standard so-235 connector to the rca type connector so you can feed a collins amp. i really hate to mess up the collins by adding a so-235 is there a way thats safe and some what simple to do this?

or does anyone make this adapter i tried searching for one i have had zero luck any help would be great thanks jeff

K0IZ · « **Reply #1 on:** February 03, 2005, 10:42:31 AM »

I made up a short patch cable using RG8X (RG58 would also be fine), with a PL259 on one end, and a Radio Shack metal RCA male plug on other end. Works fine.

K0IZ · « **Reply #2 on:** February 03, 2005, 10:51:24 AM »

I just noticed that www.radioworks.com has a UHF to RCA adapter for $1.39. Their number #904. John

W5HTW · « **Reply #3 on:** February 03, 2005, 10:56:26 AM »

It's a common adapter. But it is often referred to as a UHF-to-Motorola adapter. It has a longer shank, so will work in either a phono (RCA) female or a Motorola (as used on car radio antennas) female jack. I use the same adapter in both situations.

The cable works fine, though.

Ed

W7DJM · « **Reply #4 on:** February 03, 2005, 11:32:59 AM »

In my opinion, you should not use an adaptor. These RCA jacks were never made to support the weight and leverage of a big, heavy adaptor, plus the weight of a PL-259, plus whatever kind of coax is added.

I think you should make up a short cable, one end directly to RCA male, and the other end to probably a UHF.

In case you are young enough, Radio shack does not sell "real" RCA plugs. They are terrible, awful, quality, and some they sell don't even have hollow centers.

"IF" you can find a "real" plug, that's the way to go.

(Might just try a two way shop)

N3JBH · « **Reply #5 on:** February 03, 2005, 01:21:55 PM »

thanks agian everyone i am allways impressed with the great help you elmers do here. thank you very kindly jeff/n3jbh

WA1RNE · « **Reply #6 on:** February 03, 2005, 06:17:53 PM »

Depending on the size of the RCA receptacle, sometimes you can direct-substitute a BNC receptacle which is a much better connector. (If the hole needs to be a little larger, bore the hole with a Unabit and shield the wiring from shavings with a large cloth.)

There are SO-239 to BNC adapters available or use an RG-58/U jumper with a PL-259 on one end, BNC on the other.

73, Chris

Author Topic: collins 30L1 question ? (Read 1727 times)