Room bookings are now open for this year's Synth DIY event in Cambridge,
on the weekend of 26th-28th July:
Room booking form
Linear oscillators are readily available. But how well do they work in
musical applications? This page looks are linearity as a measure of
how well they can play notes on an exponential musical scale.
Noise in electronic circuits is usually not wanted. I put this page together
while I was designing some low noise analogue circuits and needed a quick reference
on resistor thermal noise and how it relates to op-amps.
I decided to upgrade my rather basic Phonic "toy" mixer with something a bit
more, well, interesting...
Electronics engineers can get a bit fetishy about test equipment. I've added a page
with some of my thoughts on the matter.
Oscar Salas and myself have been investigating a rather unfortunate failure mode of the SSM2164 quad VCA.
But after some experimenting involving the sacrifice of some chips we have come up with a neat solution.
On 23rd April 2009 I gave a talk at Anglia Ruskin University about my
modifications to the Jen SX1000. You can now
download the slides (PDF, 1.7MB).
After many years of neglect I have finally started my restoration and re-engineering project of this
Italian analogue polysynth.
Frankie's W30 site back online
The site for SDiskW and SMFW30 is back online here: