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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) 3) 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 1) 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 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. 1) 2) 3) 4) 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.