[sdiy] SSM2044 Filter schematic??

[James Patchell]

The Q81 was a type of resistor, they came in all sorts of values.  2K was a 
very popular value, I was able to purchase about 100 of them from Tel Labs 
back in 1977 without too much trouble....The Q81 number describes the 
tempco and the wattage and tolerence, if I remember correctly....(I no 
longer have my Tel Labs catalog...or at least, I haven't seen it for many 
years)....

At 05:38 PM 5/20/2004 -0400, allenre at umich.edu wrote:
>Are you sure about this?  In Chamberlain's "Musical Applications of
>Microprocessors," a VCO calls for a Q81, which is labeled in the schematic 
>as a
>2k resistor.
>
>Ryan
>
> > I assume that the Tellabs Q81C is no longer available, and I'm not sure 
> what
> > to substitute for it, as it's a 1K device. The tempcos I see these days are
> > 2K devices. Hmmm...

         -Jim
***************************************************************
http://www.oldcrows.net/~patchell

***************************************************************