[Elecraft] [K3] using a footswitch for PTT

[Don Wilhelm]

John,

Worst case would be to open it and replace the switch with one that has 
the same physical characteristics but it normally open.

Best case - it may be a double-throw switch that just needs to be re-wired.

73,
Don W3FPR

On 1/9/2012 12:20 PM, John Shadle wrote:
> I just checked again and, yes, it's wired to OPEN when depressed and CLOSED
> otherwise. Hrm.
>
> Can I use this for PTT or is it simply "junque"?
>
> -john W4PAH
>
> On Mon, Jan 9, 2012 at 12:10 PM, Rose<elecraftcovers at gmail.com>  wrote:
>
>> Hi John,
>>
>> Could the switch actually be a DPST and wired to -open- when the
>> switch is depressed?  There are some musical (band) applications
>> where this would be the case.
>>
>> 73!
>>
>> Ken - K0PP
>>
>> On Mon, Jan 9, 2012 at 5:06 PM, John Shadle<shadle at katzenfisch.com>wrote:
>>
>>> Hi all,
>>> I am finally getting the ol' radio back up and running after a few months
>>> of packing and moving from NC to WI. In my past life (in NC) I was mostly
>>> CW, but now that the shack is in the basement I want to get back on SSB.
>>>
>>> I have an Elecraft desk mic (the Heil version from a few years ago). It
>>> has
>>> an input for a 1/4" footswitch controller for PTT. I've never used a
>>> footswitch before, so this is all new to me.
>>>
>>> I don't have a Heil footswitch, but do have an older Yamaha foot pedal
>>> which I picked up at a yard sale a couple of years ago. It creates a
>>> closed
>>> circuit whenever I depress the switch (and is open otherwise). The odd
>>> thing is that whenever I plug in this footswitch, the PTT is engaged when
>>> the switch is plugged in--and the PTT is disengaged when I depress the
>>> switch. This seems like odd behavior to me. Is there something in the menu
>>> that I need to change? Advanced mic parameters? I'm kinda lost.
>>>
>>> I cracked the case open to view the innards, but it's just two wires (tip
>>> and ground for the 1/4" cable) and a switch. I don't think there's
>>> anything
>>> I can do in there to modify things.
>>>
>>> The model appears to be a Yamaha FC5 (
>>>
>>> http://usa.yamaha.com/products/music-production/accessories/footswitches/fc5/?mode=model
>>> ),
>>> although I can't find a model number on it.
>>>
>>> Thanks!
>>> -john W4PAH
>>> Madison, WI
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>>
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