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Amdrum

466 bytes added, 11:35, 28 September 2022
clean-up
[[Image:Amdrum.JPG|thumb|250px|Box and Manual for the Amdrum]]
The Amdrum is a an 8bit D/A converter (hardware) with drumkit (software), made by the British company [[Cheetah]].
Quality of the playback was nice, considering the time and price. The samples were read from the suplied tapes. There were 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"). Aside of Cheetahs own sequencer you can use some commands of the RSX ROM for [[LambdaSpeak III ROM|LambdaSpeak III]] to use the Amdrum.
The samples were read from Now, thanks to Jose Leandro, the suplied tapes.hardware specialist of the spectrum, with his famous page:
There were serveral tapes with different themeshttp://trastero.speccy.org/cosas/JL/JL.htm
Along with the Amdrum came a sequencing programWe can know more about this hardware.
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 other software than Cheetahs own sequencer is know to use the Amdrum.
== Technical Specifications ==
|74LS32N||Quad 2-input OR||Port decoding, /DAC_WRITE when /ADDR_MATCH, /IORQ, /WR all LOW
|-
|SN74LS04N||Hex Inverters||purpose unknown? (used in the analog partCharge pump circuit, not used to create negative voltage rail for Port decoding)the op amp
|-
|TL064CDP||Quad Operational Amplifier||no info how the 4 amplifier stages are used?Buffer and low pass filter
|-
|Ferranti ZN428E-8||8bit DAC||mono one-channel 8bit D/A converter (unsigned samples)
out (c),a ;out [FFxxh] with xx=garbage (above PIO Port C value)
== Kits Pictures ==
<gallery caption=== Afro Kit Covertape ==="AMDRUM">
<gallery caption="Afro Kit Covertape - Instructions"> Image:Afro Kit 1Amdrum_1.jpg|Afro Kit CovertapeBoxImage:Afro Kit 2Amdrum_2.jpg|Afro Kit InstructionsAmdrum inside boxImage:Afro Kit ErrataAmdrum screen shot 1.jpggif|Screen shotImage:Amdrum screen shot 2.gif|Afro Kit ErrataScreen shot
</gallery>
<gallery caption=== Electro Kit Covertape ==="300dpi scans by Robcfg">
<gallery caption="Electro Kit Covertape - Instructions">Image:AMDRUM_PCB_Top.jpg|PCB TopImage:AMDRUM_PCB_Bottom.jpg|PCB BottomImage:AMDRUM_Top.jpg|Interface TopImage:AMDRUM_Bottom.jpg|Interface Bottom
Image</gallery> <gallery caption="Amdrum Layout, thanks to Jose Leandro"> File:Electro Kit 1Amdrum - interface_delante.jpg|Electro Kit CovertapeAmdrum - Front BoxImageFile:Electro Kit 2Amdrum - interface_detras.jpg|Electro Kit InstructionsAmdrum - Back BoxFile:Amdrum - cara_componentes.jpg|Amdrum - ComponentsFile:Amdrum - cara_pistas.jpg|Amdrum - TracksFile:Amdrum PCB.png|Amdrum - PCB FrontFile:Amdrum Layout.png|Amdrum - Layout
</gallery>
=== Latin Kit Covertape =Reviews / Commercials ==
<gallery caption="Latin Kit Covertape - InstructionsCommercials for the Amdrum">
Image:Latin Kit 1amdrum commercial.jpg|Latin Kit CovertapeCommercial for AmdrumImage:Latin Kit 2Amstrad Computer User8610028.jpg|Latin Kit InstructionsReview of the Amdrum in [[Amstrad Computer User]]Image:Amstrad Computer User8610029.jpgImage:Amstrad Computer User8610030.jpg
</gallery>
== Tapes == === Amdrum Tape ===
<gallery caption="Amdrum Tape">
</gallery>
=== Afro Kit Tape =Kits ==
<gallery caption="Afro Kit Tape">
{| class="wikitable sortable" style="width:100%"|''Title''||''Front Covertape''||''Back Covertape''||''Tape Side A''||''Tape Side B''|-|[[Afro Kit]]||[[Image:Afro Kit 1.jpg|120px]]||[[Image:Afro Kit 2.jpg|120px]]||[[Image:Afro Kit Tape A.jpg|120px]]||[[Image:Afro Kit Tape side AB.jpg|120px]]|-|[[Electro Kit]]||[[Image:Afro Electro Kit 1.jpg|120px]]||[[Image:Electro Kit 2.jpg|120px]]||[[Image:Electro Kit Tape A.jpg|120px]]||[[Image:Electro Kit Tape B.jpg|Afro 120px]]|-|[[Latin Kit]]||[[Image:Latin Kit 1.jpg|120px]]||[[Image:Latin Kit 2.jpg|120px]]||[[Image:Latin Kit Tape A.jpg|120px]]||[[Image:Latin Kit Tape side B.jpg|120px]]|-|}
</gallerycaption="Afro Kit - Errata">
=== Electro Kit Tape === <gallery caption="Electro Kit Tape"> Image:Electro Kit Tape A.jpg|Electro Kit Tape side AImage:Electro Afro Kit Tape BErrata.jpg|Electro Afro Kit Tape side BErrata
</gallery>
 
=== Latin Kit Tape ===
 
<gallery caption="Latin Kit Tape">
 
Image:Latin Kit Tape A.jpg|Latin Kit Tape side A
Image:Latin Kit Tape B.jpg|Latin Kit Tape side B
 
</gallery>
 
== Pictures ==
 
<gallery caption="AMDRUM">
Image:Amdrum1.jpg|
Image:Amdrum2.jpg|
Image:Amdrum inside1.jpg|Component side
Image:Amdrum inside2.jpg|"AMSTRAD SPECDRUM"
Image:Amdrum screen shot 1.gif|Screen shot
Image:Amdrum screen shot 2.gif|Screen shot
Image:Amdrum_1.jpg|Box
Image:Amdrum_2.jpg|Amdrum inside box
</gallery>
 
== Manual ==
 
* [[Media:Amdrum Manual.pdf|Amdrum Manual]] (pdf)
 
== Reviews / Commercials ==
 
<gallery caption="Commercials for the Amdrum">
Image:amdrum commercial.jpg|Commercial for Amdrum
Image:Amstrad Computer User8610028.jpg|Review of the Amdrum in [[Amstrad Computer User]]
Image:Amstrad Computer User8610029.jpg
Image:Amstrad Computer User8610030.jpg
</gallery>
 
== Weblinks ==
 
[http://www.engadget.com/2005/10/28/music-thing-the-zx-spectrum-specdrum-module/ Site about the SpecDrum]
 
[http://www.crashonline.org.uk/27/specdrum.htm Review of the Spectrum version]
 
[http://www.worldofspectrum.org/hardware/feat42.html Another review]
== Other playback devices ==
{{#ev:youtube|m6R_W9CZWGU|400}}
 
== Manual ==
 
* [[Media:Amdrum Manual.pdf|Amdrum (Cheetah) Manual]] {{EN}} {{PDF}}
== Download ==
* [[Media:Amdrum Latin Kit.zip|Amdrum Latin Kit.zip]] (CDT for Emulators)
* [[Media:Amdrum (Eagle).zip|Amdrum (Eagle).zip]] (Amdrum files for Eagle) == Links Weblinks ==
* [http://www.cpc-power.com/index.php?page=detail&num=4294 CPC game base ''Amdrum'' from CPC -Power] (Amdrum)* [http://www.cpc-power.com/index.php?page=detail&num=4312 CPC game base ''Amdrum Afro kit'' from CPC -Power] (Amdrum Afro kit)* [http://www.cpc-power.com/index.php?page=detail&num=4313 CPC game base ''Amdrum Electro kit'' from CPC -Power] (Amdrum Electro kit)* [http://www.cpc-power.com/index.php?page=detail&num=4311 CPC game base ''Amdrum Latin kit'' from CPC -Power] (* [https://cpcrulez.fr/hardware-audio-amdrum_AA.htm ''Amdrum Latin kit)'' from CPCrulez]* [http://hardware.speccy.org/temp/Amstrad-Amdrum.html ''Amdrum'' from hardware.speccy.org]* [http://www.engadget.com/2005/10/28/music-thing-the-zx-spectrum-specdrum-module/ Site about the SpecDrum]* [http://www.crashonline.org.uk/27/specdrum.htm Review of the Spectrum version]* [http://www.worldofspectrum.org/hardware/feat42.html Another Spectrum review]
[[Category:Hardware]] [[Category:Peripherals]] [[Category:Music and sound]] [[Category:Manual]][[Category:Video contents]]
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