Homebrew Drum Computer

Gordon JC Pearce gpearce at curiousgroup.co.uk
Fri Dec 14 11:05:02 CST 2007


On Friday 14 December 2007 16:58:32 Dave McGuire wrote:
> On Dec 14, 2007, at 9:42 AM, Gordon JC Pearce wrote:
> >> though? Google suggests that's 1 7/8" per second, which isn't very
> >> fast at
> >> all - a drum that can do a few tens of RPM seems possible, but 6000??
> >
> > I don't think it makes a difference.  The higher the speed, the
> > larger the
> > voltage from the flux transition, but that shouldn't be a problem
> > (within
> > reason).  The head gap and medium speed dictates the "resolution"
> > of the
> > system.  You can think of it as being like trying to write with
> > different
> > sizes of pen nib.
>
>    As the speed increases, the inductance of the tape head will come
> into play at some point.

That's true.  Maybe pull some video recorder heads?

Gordon



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