Teensys and Old Synth Chips, Together At Last

Tue, 11 Nov 2014 00:00:13 +0000, by Brian Benchoff

The ancient computers of yesteryear had hardware that's hard to conceive of
today; who would want a synthesizer on a chip when every computer made in the
last 15 years has enough horsepower to synthesize sounds in software and
output everything with CD quality audio? [Brian Peters] loves these old synth
chips and decided to make them all work with a modern
microcontroller.

Every major sound chip from the 80s is included in this roundup. The
Commodore SID is there with a
chip that includes working filters. The
SN76489, the sound chip
from the TI99 and BBC Micro … Read the rest

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#classic-hacks #digital-audio-hacks #Atari-TIA #chip #chiptune #POKEY #sid #SID-synth #SN76489 #TIA

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Wax Motors Add Motion to Your Projects

Mon, 10 Nov 2014 21:00:40 +0000, by Adam Fabio

[electronicsNmore] has uploaded a great teardown and tutorial
video (YouTube link) about wax
motors. Electric wax motors aren't
common in hobby electronics, but they are common in the appliance industry,
which means the motors can be often be obtained cheaply or for free from
discarded appliances. Non-electric wax motors have been used as automotive
coolant thermostats
for years.  Who knows, this may be just what the doctor ordered for your next
project.

As [electronicsNmore] explains, wax motors are rather simple devices. A small
block of wax is sealed in a metal container with a movable piston. When
heated, the wax … Read the rest

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#classic-hacks #appliance #outdoor-thermostat #positive-temperature-Coefficient #PTC #thermostat #Wax-motor

Published via PaperboD*