Amdrum - Revision history

Phi2x: /* Manual */

2025-04-10T01:13:07Z

Manual

← Older revision		Revision as of 01:13, 10 April 2025
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	* [[Media:Amdrum Manual.pdf\|Amdrum (Cheetah) Manual]] {{EN}} {{PDF}}		* [[Media:Amdrum Manual.pdf\|Amdrum (Cheetah) Manual]] {{EN}} {{PDF}}
			* [https://framagit.org/offset/amdrum-acepansion Amdrum ACEpansion] on Framagit

	== Download ==		== Download ==

Polluks: clean-up

2022-09-28T11:35:57Z

clean-up

← Older revision		Revision as of 11:35, 28 September 2022
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	[[Image:Amdrum.JPG\|thumb\|250px\|Box and Manual for the Amdrum]]		[[Image:Amdrum.JPG\|thumb\|250px\|Box and Manual for the Amdrum]]

	The Amdrum is a 8bit D/A converter (hardware) with drumkit (software), made by the British company [[Cheetah]].		The Amdrum is 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.		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.~~		Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page:

	~~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 to use the Amdrum.~~

	Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :

	http://trastero.speccy.org/cosas/JL/JL.htm		http://trastero.speccy.org/cosas/JL/JL.htm
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	* [http://www.worldofspectrum.org/hardware/feat42.html Another Spectrum review]		* [http://www.worldofspectrum.org/hardware/feat42.html Another Spectrum review]

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

Pianoplonker at 18:33, 28 April 2021

2021-04-28T18:33:45Z

← Older revision		Revision as of 18:33, 28 April 2021
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	\|74LS32N\|\|Quad 2-input OR\|\|Port decoding, /DAC_WRITE when /ADDR_MATCH, /IORQ, /WR all LOW		\|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 part, not for Port decoding)~~		\|SN74LS04N\|\|Hex Inverters\|\|Charge pump circuit, used to create negative voltage rail for the op amp
	\|-		\|-
	\|TL064CDP\|\|Quad Amplifier\|\|~~no info how the 4 amplifier stages are used?~~		\|TL064CDP\|\|Quad Operational Amplifier\|\|Buffer and low pass filter
	\|-		\|-
	\|Ferranti ZN428E-8\|\|8bit DAC\|\|mono one-channel 8bit D/A converter (unsigned samples)		\|Ferranti ZN428E-8\|\|8bit DAC\|\|mono one-channel 8bit D/A converter (unsigned samples)

Cpcmaniaco: /* Pictures */

2020-09-18T10:44:42Z

Pictures

← Older revision		Revision as of 10:44, 18 September 2020
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	<gallery caption="Amdrum Layout, thanks to Jose Leandro">		<gallery caption="Amdrum Layout, thanks to Jose Leandro">

			File:Amdrum - interface_delante.jpg\|Amdrum - Front Box
			File:Amdrum - interface_detras.jpg\|Amdrum - Back Box
			File:Amdrum - cara_componentes.jpg\|Amdrum - Components
			File:Amdrum - cara_pistas.jpg\|Amdrum - Tracks
	File:Amdrum PCB.png\|Amdrum - PCB Front		File:Amdrum PCB.png\|Amdrum - PCB Front
	File:Amdrum Layout.png\|Amdrum - Layout		File:Amdrum Layout.png\|Amdrum - Layout

Cpcmaniaco: /* Weblinks */

2020-09-18T10:38:26Z

Weblinks

← Older revision		Revision as of 10:38, 18 September 2020
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	* [http://www.cpc-power.com/index.php?page=detail&num=4311 ''Amdrum Latin kit'' from CPC-Power]		* [http://www.cpc-power.com/index.php?page=detail&num=4311 ''Amdrum Latin kit'' from CPC-Power]
	* [https://cpcrulez.fr/hardware-audio-amdrum_AA.htm ''Amdrum'' from CPCrulez]		* [https://cpcrulez.fr/hardware-audio-amdrum_AA.htm ''Amdrum'' 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.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.crashonline.org.uk/27/specdrum.htm Review of the Spectrum version]

Cpcmaniaco: /* Links */

2020-09-18T10:36:57Z

Links

← Older revision		Revision as of 10:36, 18 September 2020
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	* [[Media:Amdrum (Eagle).zip\|Amdrum (Eagle).zip]] (Amdrum files for Eagle)		* [[Media:Amdrum (Eagle).zip\|Amdrum (Eagle).zip]] (Amdrum files for Eagle)

	== ~~Links~~ ==		== Weblinks ==

	* [http://www.cpc-power.com/index.php?page=detail&num=4294 ''Amdrum'' from CPC-Power]		* [http://www.cpc-power.com/index.php?page=detail&num=4294 ''Amdrum'' from CPC-Power]
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	* [http://www.cpc-power.com/index.php?page=detail&num=4313 ''Amdrum Electro kit'' from CPC-Power]		* [http://www.cpc-power.com/index.php?page=detail&num=4313 ''Amdrum Electro kit'' from CPC-Power]
	* [http://www.cpc-power.com/index.php?page=detail&num=4311 ''Amdrum Latin kit'' from CPC-Power]		* [http://www.cpc-power.com/index.php?page=detail&num=4311 ''Amdrum Latin kit'' from CPC-Power]
			* [https://cpcrulez.fr/hardware-audio-amdrum_AA.htm ''Amdrum'' from CPCrulez]
	* [http://www.engadget.com/2005/10/28/music-thing-the-zx-spectrum-specdrum-module/ Site about the SpecDrum]		* [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.crashonline.org.uk/27/specdrum.htm Review of the Spectrum version]

TFM at 11:41, 26 April 2020

2020-04-26T11:41:36Z

← Older revision		Revision as of 11:41, 26 April 2020
Line 16:		Line 16:
	Amdrum was probably Cheetahs version of the SpecDrum (As revealed on the PCB "AMSTRAD SPECDRUM")		Amdrum was probably Cheetahs version of the SpecDrum (As revealed on the PCB "AMSTRAD SPECDRUM")

	Aside of Cheetahs own sequencer you can use ~~comme~~ commands of the RSX ROM for LambdaSpeak III to use the Amdrum.		Aside of Cheetahs own sequencer you can use some commands of the RSX ROM for LambdaSpeak III to use the Amdrum.

	Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :		Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :

TFM: software note added

2020-04-26T11:41:07Z

software note added

← Older revision		Revision as of 11:41, 26 April 2020
Line 16:		Line 16:
	Amdrum was probably Cheetahs version of the SpecDrum (As revealed on the PCB "AMSTRAD SPECDRUM")		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.		Aside of Cheetahs own sequencer you can use comme commands of the RSX ROM for LambdaSpeak III to use the Amdrum.

	Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :		Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :

Cpcmaniaco: /* Manual */

2016-04-09T01:03:37Z

Manual

← Older revision		Revision as of 01:03, 9 April 2016
Line 173:		Line 173:
	== Manual ==		== Manual ==

	* [[Media:Amdrum Manual.pdf\|Amdrum Manual]] {{EN}} {{PDF}}		* [[Media:Amdrum Manual.pdf\|Amdrum (Cheetah) Manual]] {{EN}} {{PDF}}

	== Download ==		== Download ==

Cpcmaniaco: /* Manual */

2016-04-09T01:02:42Z

Manual

← Older revision		Revision as of 01:02, 9 April 2016
Line 173:		Line 173:
	== Manual ==		== Manual ==

	* [[Media:Amdrum Manual.pdf\|Amdrum Manual]] ~~(pdf)~~		* [[Media:Amdrum Manual.pdf\|Amdrum Manual]] {{EN}} {{PDF}}

	== Download ==		== Download ==

← Older revision		Revision as of 10:44, 18 September 2020
Line 111:		Line 111:
	<gallery caption="Amdrum Layout, thanks to Jose Leandro">		<gallery caption="Amdrum Layout, thanks to Jose Leandro">

			File:Amdrum - interface_delante.jpg\|Amdrum - Front Box
			File:Amdrum - interface_detras.jpg\|Amdrum - Back Box
			File:Amdrum - cara_componentes.jpg\|Amdrum - Components
			File:Amdrum - cara_pistas.jpg\|Amdrum - Tracks
	File:Amdrum PCB.png\|Amdrum - PCB Front		File:Amdrum PCB.png\|Amdrum - PCB Front
	File:Amdrum Layout.png\|Amdrum - Layout		File:Amdrum Layout.png\|Amdrum - Layout