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80-1

Power Supply Unit

Other names for this product: 80-1A,
Courtesy/Thanks to: Digisound

Description: +15V/-15V DC stabilised power supply


300mA (80-1) or 1A (80-1A) Power Supply Unit.

The 300mA version is capable of driving about 15 modules plus the monophonic keyboard. The 80-1A is the same design as the 80-1 but with necessary component changes to provide a stabilised supply with an output of 1A per rail.



This is not a panel-mounted kit and housing within the keyboard case is recommended. No front panels are supplied with 80-1 kits.

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Files
15v.bipolar.power.supply.txt
   Schematics, component list and assembly notes for the Digisound 80 PSU
80-1.pdf
   Service Manual, assembly plan for the 80-1 Digisound Power Supply
80-1_eti.pdf
   ETI article about the Digisound 80-1
80-1_pcb.gif
   PCB layout for the Digisound 80-1 Power Supply
Manufacturers
Digisound Ltd
   Manufacturer of the Digisound 80 Modular system. Charles Blakey ran a small family-owned company cal
Modular mother system
Digisound 80
   Modular Synthesizer
Parts used
LM 723
   Voltage Regulator
TIP31A
   Complementary Silicon
TIP3055
   Complimentary Silicon Power Transistor
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