Changes

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 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") No other software than Cheetahs own sequencer is know to use the Amdrum. Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :

|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

 Image:Amdrum inside1Amdrum_1.jpg|Component sideBoxImage:Amdrum inside2Amdrum_2.jpg|"AMSTRAD SPECDRUM"Amdrum inside box

<gallery caption="AMDRUM 300dpi scans by Robcfg">

<gallery caption== Kits =="Amdrum Layout, thanks to Jose Leandro">

=== Afro Kit Covertape === <gallery caption="Afro Kit Covertape File:Amdrum - Instructions">interface_delante.jpg|Amdrum - Front BoxImageFile:Afro Kit 1Amdrum - interface_detras.jpg|Afro Kit CovertapeAmdrum - Back BoxImageFile:Afro Kit 2Amdrum - cara_componentes.jpg|Afro Kit InstructionsAmdrum - ComponentsImageFile:Afro Kit ErrataAmdrum - cara_pistas.jpg|Afro Kit ErrataAmdrum - TracksFile:Amdrum PCB.png|Amdrum - PCB FrontFile:Amdrum Layout.png|Amdrum - Layout

=== Electro Kit Covertape =Reviews / Commercials ==

<gallery caption="Electro Kit Covertape - InstructionsCommercials for the Amdrum">

Image:Electro Kit 1amdrum commercial.jpg|Electro Kit CovertapeCommercial for AmdrumImage:Electro Kit 2Amstrad Computer User8610028.jpg|Electro Kit InstructionsReview of the Amdrum in [[Amstrad Computer User]]Image:Amstrad Computer User8610029.jpgImage:Amstrad Computer User8610030.jpg

=== Latin Kit Covertape === <gallery caption="Latin Kit Covertape - Instructions"> Image:Latin Kit 1.jpg|Latin Kit CovertapeImage:Latin Kit 2.jpg|Latin Kit Instructions </gallery> == Tapes == === Amdrum Tape ===

=== Afro Kit Tape =Kits ==

{| 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

* [[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:Peripherals]] [[Category:Music and sound]] [[Category:Manual]][[Category:Video contents]]