From: Ian Graham Date: Wed, 18 Dec 1996 21:07:32 +1030 (CST) Subject: Direct box
Mike Curtis writes:
> > 47k 1/2w >speaker >---/\/\/\---o > | spst switch > | / > \ o--o/ o--o > / | | > 10k \ | | > linear /<-o-/\/\/\-o-\/ || > taper \ 1 meg || > / o_________|| > | | > 47k 1/2w | | >speaker >---/\/\/\---o------o > > >Don't ground this at the harp amp. It will be grounded through the cable >at the PA. > >With the switch open, full output of the amp will result in 0.1 volt RMS >at the top of the pot, giving a good range of operation for mic level >operation. Closing the switch will provide a +20 dB boost, to 1.0 volt >RMS, plenty for line level operation. > >There's no reason you couldn't use a pull-on push-off pot/switch combo. > >I built mine into a small aluminum box. >
> -- IronMan Mike Curtis
This is plainly incorrect.
The following circuit will fulfil the preceding claims:
