ALM ALM003 - Manual (Page 5)

Technical Specifications
• Supply: +/-12V
• Current Draw: ~50-200ma (up to 200ma with 6581/8580 SID chip installed)
• Size: 12 HP
• Depth: 30-40 mm (with heat sinks installed)
Caveats
A SID chip is vintage technology! As such there are a number of limitations;
• A real SID chip is noisy.
• Filter performance varies between chips.
• 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’
5