Usefulness of 'Slow Random' noise versus 'Boing' filter

[Roy Tate]

I was in too much of a hurry when I sent my reply to Paul S.
The actual signal was 5 volts, not 0.5 volts, but I selected
the 2n3904 from a group of 12 or 15 for sound and amplitude.

Sorry for the confusion.

Regards,

Roy Tate
roytate at ionet.net
http://www.ionet.net/~roytate


---

From:	Paul Schreiber [SMTP:synth1 at airmail.net]

>Actually, this is the sort of stuff I get on MOTM Noise board 
prototype.
>The original Electronotes circuits talks about
>"10 volts pk-pk at around 10Hz", but no way!
>
>I use a 150K feedback with a 22K input resistor, and get about 40Hz 
average
>out at around 0.75V pk-pk. Which makes sense.
>
>I guess the question I have:  is it usefu??.
>
>I was playing around with the 'Random Vibrato' filter. If I patch it
>up the the s&h clock, I can real nice 'boings' out of it (the 'boing' 
time
>set by the Q pot). The original circuit was triggered by white noise,
>but unless the Q is very high, not much happens. At high Q, the
>filter self-oscillates at a fixed 7Hz.
>
>So, what if I scrap the "Slow Random" jack, and use it as an input to
>the boing filter. I can normalize it to the internal S&H clock. Any
>sharp edged input <7Hz would boing it as well.
>
>Paul Schreiber

----
From: 	Roy Tate[SMTP:roytate at ionet.net]
Sent: 	Monday, March 16, 1998 10:58 PM
To: 	'Paul Schreiber'
Subject: 	RE: ASM1 Noise Gen question

>Just curious what the 'Slow Random' output voltage is on a scope.
>Amplitude and frequency range.
>
>Paul Schreiber


I am getting about 30 Hz and about 0.5v (not optimal!) from
a 2N3904 in my ASM-1.  The signal seems to favor positive
voltages, with occasional negative excursions.

Frequency measured with a Fluke meter, amplitude
measured with standard opto-neural linkage [eyeball :) ]
on a scope.

Regards,

Roy Tate
roytate at ionet.net
http://www.ionet.net/~roytate