Signal Generator

[tom56dan]

Hi Guys
I use a signal generator and scope to tweak and repair my builds. I was wondering what mV strength to use to simulate a guitar. I have seen different ratings on schematics. All much lower than I measure with a true RMS meter. As a newbie I love reading the discussions.
Thanks

[UR12]

It really depends on the pickups used but anything from 100mv to 500mv can be expected.

[tom56dan]

Thanks Dana

[Bob-I]

I use this little kit from Parts Express. http://www.partsexpress.com/pe/showdetl ... er=320-118

It seems to work fine, even though the sine wave isn't perfect it's close enough.

[drz400]

Hi Guys
I use a signal generator and scope to tweak and repair my builds. I was wondering what mV strength to use to simulate a guitar. I have seen different ratings on schematics. All much lower than I measure with a true RMS meter. As a newbie I love reading the discussions.
Thanks

As a constant signal (not peaks) 50mv or around -25db is standard I see

[Elcabong]

As a constant signal (not peaks) 50mv or around -25db is standard I see

I am not sure to follow you here. Do you mean 50mV RMS, which would translate to around 125 p-p?

I usually go with 200mV p-p 1kHz signal.

[drz400]

As a constant signal (not peaks) 50mv or around -25db is standard I see

I am not sure to follow you here. Do you mean 50mV RMS, which would translate to around 125 p-p?

I usually go with 200mV p-p 1kHz signal.

When I said not peaks I meant when you slam a guitar you can get higher signal of course. But to see how the circuit is working instead of overdriving it I find 50mv RMS to work just fine and if I remember correctly that is how Fender specs all their schematics.

44mv rms = 123mv p-p = -25db
I use a generator which reads out in dbu so I just pick -25dbu

you are talking -20db which is also fine