[Elecraft] RCA Connectors i.e Phono Plugs

[Edward R Cole]

Cinch-Jones always referred to square black connectors with large "blade" pins.

They were used a lot with early ham amplifiers and until recently in 
Ham-series rotator controllers; now they come with 9-pin round 
connectors populated with 8-pins which one crimps onto rotator wire 
and inserts (like a Molex connector).  One has to have special 
removal tool to pull the pins.  I recently bought a Ham-IV and T2X 
rotator with those used at the rotator.  Control box still uses 
Cinch-Jones 8-pin.  Older Ham rotators sold by Hygain (and CDE) had 
simple screw strips.

I bought one of W6PQL 2m kilowatt amps and it came with a 12-pin 
Cinch-Jones, which is great since the amp draws 40A at 50v thru the 
pins.  I paralleled two pins to be sure to handle current.  Other 
pins carry 12v for control board and several lines for remote 
monitoring/control.

I can still find them in internet searches (usually Amazon companies).

Internet search shows pictures:
https://www.bing.com/images/search?q=cinch-jones+connector&qpvt=cinch-jones+connector&form=IGRE&first=1&cw=1129&ch=508

You will note some pictures show RCA-phono types with Cinch name.

Interesting history given in recent link.

Other "old" connectors used in ham radios were Octal Plugs (on many 
Heathkits) and 4-pin mic connectors.  These days one finds computer 
type connectors in use.

73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
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