DIY Amiga Audio Sampler

DIY 8-bit Amiga parallel port sampler. This prototype works well and can sample up to 1Msps although in testing Aegis AudioMaster IV only allows ~50K samples/sec.

My old GVP Amiga sampler died last week so I decided to build a new one to replace it. Actually, first I tried fixing the GVP sampler but when the device was manufactured they scratched off all the numbers on the ICs so I could not make sense of the circuit :(

This device uses the Maxim MAX153 A/D Converter coupled to a 74F04 Hex Inverter and attaches to the Amiga parallel port ( D0-D7). Its powered from pin 14 ( +5v on the Amiga ) and triggered by pulses on pin1 ( strobe ). The strobe line is inverted on the 74F04 then triggers a sample by hitting pins 6 and 8 on the MAX153.

Category:

Science & Technology

Tags:

• Amiga
• Parallel
• Port
• Sampler
• A/D
• MAX153
• Mikewolak

[mikewolak]

I think any modern 8-bit 5.0v parallel ADC would work as long as it has an enable pin.

[mikewolak]

I never made a schematic, sorry. It's really quite simple and between the description I wrote and the datasheet for the Maxim MAX153 you'll probably be able to make something similar.

[speewave]

Quick question, do you know if there is anything i can put in place of the MAX153? digikey has a DIP Chip for 20 some dollars!!! its crazy for a chip i thought... but not really sure

[kirkassika]

okay have to try this.

[kirkassika]

Any schematics available?