Re: Multi-Freq Pig Rig


David Martin <davemrtn@...>
 

Great idea......

The crystals are spaced at .200", but the problem is the "individual crystal" leads are spaced at .200" apart and a dip socket spacing (one side to the other) is .300"

You might use a "wire-wrap" socket which has longer pins and bend them to fin into the .200" spacing thus adapting the crystal lead spacing to .300" allowing crystals piggy-backed (no pun intended) on a dip socket to be used.

Excellent idea about putting all crystals on one dip socket then rotate socket to swap frequencies.


On 03/11/2013 09:41 PM, casey kerchner wrote:
 

While using a switch is pretty much out, has anyone given thought to adding an IC Socket and mounting the Rocks on a DIP Plug (or header)? Then it should be quick and easy to change frequency. And it they were plugged in backwards, it would not matter. Or go to a 16 pin DIP, with one side for the 7.031 Xtals and the other side for 7122, just reverse the plug to change freq. Just a thought.

73 de Keith ~ KC9IH ~ in Northern IL

~ ex-WD9GKA ~ ex-WB9HCL ~ ex-K9UCF
10-X 38221, SKCC 9396, NAQCC 6165,
QRP ARCI 5435, Flying Pigs 2926,
GORC 414, MI QRP 1163, 4SQRP



--
David Martin - K5DCM ---o0o---
Mountain Home, Arkansas

Guns don't kill people, any more than spoons & forks cause obesity.

 

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