[ForSale-Swap] Re: [YaesuVX-7] Recommendation for in-line PTT Switch

[doc]

I have a David Clark Model U3410 belt-clip PTT switch that I no longer
need as I am using a throat-mic/headset instead.

Someone has one posted with pictures and description here:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4520870458&category=90978&sspagename=WDVW

Excerpts from the included Technical Note:
The device contains a mic pre-amp, DC power source (via the rig
cable) for a carbon or amplified dynamic mic, a jack for a 3-wire
headset-mic, a volume control for the earphones (high impedance),
a PTT switch.  (Many more details and wiring info on the two
included sheets.  Includes the orignal box.)

The headset-mic connector is 1/4" and there is a 4-pin military-
type plug at the rig end.  The unit has minor wear next to the
belt clip but it otherwise real nice.

I need $20. including shipping conus.

73, doc kd4e