ALM ALM003 User Manual
Page 13
The SID GUTS supports 3 different types of SID chip; The original 6581 chip, the
later 8580 and a modern hardware emulation chip - the 'SwinSID'. The SID chip should
be clearly identified. Beware of fake SID chips or patly working SID chips with broken
filters.
• For a 6581 chip, the jumper should be set accordingly for 12V. The capacitors
should be 470PF (supplied).
• For a 8580 chip, the jumper should set accordingly for 9V, the capacitors should be
22NF.
• For a SwinSID
, the jumper can be removed, as can the capacitors - they have no
effect on the filter.
You may want to experiment with different capacitors value pairs and the effect on
the filters response. Other common values include 2.2NF, 6.8NF, 1NF etc..
Take care when inserting and removing the SID chip in the DIL socket. Use of
antistatic protection is recommended.
ALM-003 - ‘SID GUTS’
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