[Elecraft] [K3] using a footswitch for PTT

[Ross Primrose N4RP]

Looking at the pictures, it looks like the center arm of the switch is 
connected to the pole the black wire is connected to just to the left of 
where the black wire is soldered. It looks like if you broke that 
connection, and connected the white wire to the center arm of the 
switch, it would only be connected to the black wire when the switch is 
depressed....

73, Ross N4RP

On 1/9/2012 1:31 PM, John Shadle wrote:
> Here's an update with photos of the innards.
>
> I think there might be a way to rewire this one, but it would require
> cutting part of the switch. Not sure about that... Right now it's shaped
> like an "S" when not depressed:
>
>   ----       (white wire connects here)
> {
>   ---
>      }
> ----         (black wire connects here)
>
> When the pedal is depressed, it looks more like this:
>
>   ----       (white wire connects here)
>
>   ---
> /    }
> ----         (black wire connects here)
>
> So, the switch is open. See the photos here.
>
> https://picasaweb.google.com/john.shadle/YamahaFootswitchForPTTOnTheK3?authuser=0&authkey=Gv1sRgCNTGxcrS-qLoeg&feat=directlink
>
> -john
>
> On Mon, Jan 9, 2012 at 12:06 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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