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Revision as of 00:50, 25 September 2009
A drumkit by the British company Cheetah.
The drumkit was able to play 8bit sound samples.
Quality of the playback was nice, considering the time and price.
The samples was read from the suplied tapes.
There was serveral tapes with different themes!.
Along with the Amdrum came a sequencing program.
It was possible to copy the samples to disc, but the sequencing program had to be patched!
Amdrum was probably Cheetahs version of the SpecDrum (As revealed on the PCB "AMSTRAD SPECDRUM")
No CPC emulator supports the Amdrum. To hear 'Amdrum' in action the Spectrum emulator Spectaculator emulates the SpecDrum.
No other software than Cheetahs own sequencer is know to use the Amdrum.
Contents
Technical Specifications
The PCB(oneside) contains five chips:
| 74LS30N | Port decoding |
| 74LS32N | Port decoding |
| SN74LS04N | ? |
| 064C0P | Amplifier? |
| Ferranti ZN428E-8 | 8bit DAC |
The Amdrum probably uses port #FF50 I/O, needs to be confirmed though.
Kits
Afro Kit Covertape
- Afro Kit Covertape - Instructions
Afro Kit Covertape
Afro Kit Instructions
Afro Kit Errata
Electro Kit Covertape
- Electro Kit Covertape - Instructions
Electro Kit Covertape
Electro Kit Instructions
Latin Kit Covertape
- Latin Kit Covertape - Instructions
Latin Kit Covertape
Latin Kit Instructions
Tapes
Amdrum Tape
- Amdrum Tape
Amdrum Tape side A
Amdrum Tape side B
Afro Kit Tape
- Afro Kit Tape
Afro Kit Tape side A
Afro Kit Tape side B
Electro Kit Tape
- Electro Kit Tape
Electro Kit Tape side A
Electro Kit Tape side B
Latin Kit Tape
- Latin Kit Tape
Latin Kit Tape side A
Latin Kit Tape side B
Pictures
- AMDRUM
Component side
"AMSTRAD SPECDRUM"
Screen shot
Screen shot
Box
Amdrum inside box
Manual
- Amdrum Manual (pdf)
Weblinks
Review of the Spectrum version
Other playback devices
Videos
A presentation(from around 1985) of the ZX Spectrum version of the Amdrum(Specdrum), also mention of the upcomming Amstrad CPC version
{{#ev:youtube|m6R_W9CZWGU|200}}
Download
- Amdrum.zip (CDT for Emulators)
- Amdrum Afro Kit.zip (CDT for Emulators)
- Amdrum Electro Kit.zip (CDT for Emulators)
- Amdrum Latin Kit.zip (CDT for Emulators)
