[sdiy] Stompbox power (was Re: Socket schematic symbol question)

[cheater cheater]

I am guessing one more way would be to have some form of "current
detection" circuit in the signal path... which would detect if there's
a closed circuit (hence, signal coming in and so, current
happening)... and you could use that MOSFET you talk about, I guess?

Cheers,
D.

On Tue, Nov 2, 2010 at 15:22, Neil Johnson <neil.johnson97 at ntlworld.com> wrote:
> Hi,
>
> Tom Wiltshire wrote:
>> FWIW, I disagree with Don and Harry. Whilst it might send the power through lots of
>> connections and so forth, it's a simple method, is cheap to do (and cheap to repair), and
>> uses the most basic, easily available parts. That makes it a good fit for a box that spends
>> its life getting stamped on on that beer-soaked floor Harry mentioned.
>
> Why not use a p-channel MOSFET to switch the power, with its gate
> pulled low by the mono-in-stereo ground ring switch?
>
> Cost increment is pretty small (one transistor, one resistor) and it
> minimises the current through the jack plug.
>
> Neil
> --
> http://www.njohnson.co.uk
>