On 18/03/2016 20:02, Gareth Magennis wrote:


"N_Cook" wrote in message ...

On 18/03/2016 19:37, Gareth Magennis wrote:


"N_Cook" wrote in message ...

Confirmed by the owner. I find it amazing that Gibson do not supply user
manuals with any new guitar. So how is an owner supposed to know that
you have to unplug the guitar lead, to switch off the battery, let alone
anything else?






All active guitars have this function.
Likewise, all battery powered guitar effects pedals also have this
function via the switched input jack socket.


Most owners of such products who don't know about these functions soon
find out when the battery goes dead and they ask their mates why.



Gareth.

Are we in the 21 century?
The owner only tended to use one setting of all the 3 switches, just
changing the rotary controls, plus lead connected all the time to the
amp, so internal battery on all the time. Switching the small toggle
switch on and off assuming that turned the internal amp on and off. This
was from new and unless it fell off somewhere it looks as though Gibson
does not even put a little soft cover over the spindle of that switch,
so bare metal, unlike the normal 3 way switch which does have a soft
cover. Avoids static clicks , if nothing else, getting through to the
output.





I should imagine that if that switch turned the power on and off, there
would be an almighty BANG which would raise far more eyebrows than a
piffling static click.


Gareth.

This is very light load of 9V , one FET, and 22K in line with "B+".
With old battery 4V over the circuit and it worked, tried on
DVM-bat_test and 0.02V registered, and about 6V on DVM-V.
I would have thought a SM 10uF cap downstream of that 22K would do the
job of switch-on bang, perhaps switch-off fart would be frowned-on, but
there is already a muting subcircuit there, so perhaps 3PDT switch instead.
Had another go at trying to find a user manual for a classic 2014, specs
yes, but no user manual to explain about that toggle switch, mute/boost
or normal/boost variants