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

[Tom Wiltshire]

On 2 Nov 2010, at 14:22, Neil Johnson 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.

Ok, but what's the advantage? I don't get it (but it's been a long grey day...).

Tom