Download SID Fixer - Vintage is the New Old

SID Fixer
Abstract
The SID Fixer is a small circuit board for installation
inside your Commodore 64 or 128. It allows you to
mount both an old and a new SID at the same time.
This gives you the opportunity to manually switch
between the two chips on-the-fly, but even more
interesting, it enables music player software to
automatically select and use the appropriate SID.
Imagine your trusty old Commodore being able to
play each and every tune in the High Voltage SID
Collection on the correct SID chip without you having
to swap computers between every other tune! All
done automatically!!! The SID Fixer allows for easy
installation. It fits right into the SID socket of your
Commodore with no soldering required. 1)
Preliminary specifications 2)
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Manual on-the-fly switching between 6581 (old SID) and 8580 (new SID)
Software selectable SID, allowing music player software to automatically select correct SID model
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Fits all variants of Commodore 64 and 128
Sample playback fix for 8580 (DIGI-Fix)
Protects SID input and output against over/under voltage and short circuit
Generates safe and precise operating voltages for each SID
Reduced audible noise due to individual voltage filtering and regulation for each SID
Input noise reduction
Software controllable input mute function
High quality precision filter capacitors
Replaces wrong value filter capacitors in early C64 and all SX-64 models
Automatic SID model detection
Will work with only one SID if you just want to use old SID in new C64 or new SID in old C64, or just want improved
sound quality
SIDs individually addressable and concurrently active with optional A5 intercept, allowing composers to produce
4)
stereo music with second SID at $D420 – Using either two identical chips or one of each model
6581 emulation using 8580 chip only – Achieved by adjusting filter capacitor values and closest match waveform
translation
Estimated Retail Price
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100 orders: 79,90€
200 orders: 64,90€
300 orders: 59,90€
Online pre-ordering will be made available later. Until then, non-binding orders can be given at [email protected].
When a satisfactory minimum order is reached, we’ll contact you with the final price and ask you to confirm your order.
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Fits all C64, C128 and SX-64 models using an appropriate socket adapter which is included in the package. The C128DCR requires removal of a power
supply standoff and jack-up of the power supply platform. Instructions will be included in the package.
Specifications are subject to change.
SIDs marked model number 6582 are functionally and electrically identical to 8580.
Requires soldering a wire from the A5 terminal of the SID Fixer to the A5 address line in the C64/C128. Instructions will be included in the package.