User Manual

Technical Specifications
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Supply: +/-12V
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Current Draw: ~50-200ma (up to 200ma with 6581/8580 SID chip installed)
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Size: 12 HP
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Depth: 30-40 mm (with heat sinks installed)
Caveats
A SID chip is vintage technology! As such there are a number of limitations;
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A real SID chip is noisy.
•
Filter performance varies between chips.
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Resonance has very little effect and sometimes even unexpected.
•
SID chip updates are limited to approx. 50Hz thus very fast (i.e audio rate)
modulations will not work as expected.
•
On rare occasions certain SID chips appear to ‘lock up’ and lose audio output. If
this occurs, reset the oscillator by disabling and re-enabling (see Oscillator
Control section).
•
SID chips run hot and use a lot of current.
•
SID chips are fragile! Take care in handling.
ALM-003 - ‘SID GUTS’
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