Kaypro Journal - Recent changes [en]

Kaypro 4X

FrankRahman — Mon, 13 Jul 2026 23:23:15 GMT

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	[[File:4X drives.jpg]]		[[File:4X drives.jpg]]
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	~~[[File:Kaypro 4X MB.jpg]]~~
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	\|}		It appears that there may be two Kaypro 4Xs to have survived.

	~~It appears~~ that ~~there may be two Kaypro 4Xs~~ to ~~have survived~~.		Around 2017-2020 there was one in the Los Angeles area that had been in the estate of a WWII German scientist, it was sold to someone in the LA area. The other 4X was in the British Columbia, Canada area at that time up to 2026 when I purchased it.

	~~Around 2017~~-~~2020 there was one in the Los Angeles area that had been in the estate of a WWII German scientist, it was sold to someone in the LA area. The other~~ 4X ~~was in the British Columbia, Canada area at that time up to 2026 when I purchased it~~.		See [[Mainboard 81-184#4X\|Mainboard 81-184]] for board details.


	[[Drivetec Drives\|See Drivetec Drives for what makes a Kaypro 4X a 4X]]		[[Drivetec Drives\|See Drivetec Drives for what makes a Kaypro 4X a 4X]]

Mainboards

FrankRahman — Mon, 13 Jul 2026 23:18:20 GMT

← Older revision		Revision as of 23:18, 13 July 2026
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	[[Mainboard 81-110]] - Kaypro II		[[Mainboard 81-110]] - Kaypro II

	[[Mainboard 81-240]] - Kaypro II and 4		[[Mainboard 81-240]] - Kaypro II and 4 (83)

			[[Mainboard 81-184]] - Kaypro 4X and New 2

Mainboard 81-184

FrankRahman — Mon, 13 Jul 2026 23:16:20 GMT

Created page with "The 81-184 boards are part of the "Universal" boards. They can be found in the 4X, New 2, ... ==4X== {| |- | File:81-184 A1 K4X.jpg || File:81-184 A1 K4X bottom.jpg |- | File:81-184 A1 closeup U45 4X.jpg<br>This is a closeup of the 4X board. Note that U53 is populated and that U60 has resistors replacing it. This is required for the Drivetec Drives. || File:81-184 A1 Closeup U45 No Clock.jpg<br>This is a New 2 board which does not have Drivetec d..."

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The 81-184 boards are part of the "Universal" boards. They can be found in the 4X, New 2, ...

==4X==
{|
|-
|
[[File:81-184 A1 K4X.jpg]]
||
[[File:81-184 A1 K4X bottom.jpg]]
|-
|
[[File:81-184 A1 closeup U45 4X.jpg]]<br>This is a closeup of the 4X board. Note that U53 is populated and that U60 has resistors replacing it. This is required for the Drivetec Drives.
||
[[File:81-184 A1 Closeup U45 No Clock.jpg]]<br>This is a New 2 board which does not have Drivetec drives and does not have U53 but does have U60.
|}

File:81-184 A1 Closeup U45 No Clock.jpg

FrankRahman — Mon, 13 Jul 2026 23:12:58 GMT

FrankRahman uploaded File:81-184 A1 Closeup U45 No Clock.jpg

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81-184 A1 Closeup U45 No Clock

File:81-184 A1 closeup U45 4X.jpg

FrankRahman — Mon, 13 Jul 2026 23:12:23 GMT

FrankRahman uploaded File:81-184 A1 closeup U45 4X.jpg

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81-184 A1 closeup U45 4X

File:81-184 A1 K4X bottom.jpg

FrankRahman — Mon, 13 Jul 2026 23:11:51 GMT

FrankRahman uploaded File:81-184 A1 K4X bottom.jpg

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81-184 A1 K4X bottom

File:81-184 A1 K4X.jpg

FrankRahman — Mon, 13 Jul 2026 23:11:18 GMT

FrankRahman uploaded File:81-184 A1 K4X.jpg

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81-184 A1 K4X

Monitor boards

FrankRahman — Mon, 13 Jul 2026 22:59:45 GMT

Toshiba

← Older revision		Revision as of 22:59, 13 July 2026
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	[[File:Toshiba Video Board top.jpg]]		[[File:Toshiba Video Board top.jpg]]
	\|\|		\|\|
	[[File:Toshiba Video Board Bottom.jpg]]		[[File:Toshiba Video Board Bottom.jpg]]<br>This version of the Toshiba Board is not shown in the Technical Manual (I only have versions C-F to reference.)
			\|-
			\|
			[[File:Toshiba Video Board Ver 2 top.jpg]]
			\|\|
			[[File:Toshiba Video Board Ver 2 bottom.jpg]]<br>The second version of the board is wider, the components layout is different, and the adjustments are slightly different. This version's adjustments match the technical manual.
	\|-		\|-
	\|		\|

File:Toshiba Video Board Ver 2 bottom.jpg

FrankRahman — Mon, 13 Jul 2026 22:57:01 GMT

FrankRahman uploaded File:Toshiba Video Board Ver 2 bottom.jpg

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Toshiba Video Board Ver 2 bottom

File:Toshiba Video Board Ver 2 top.jpg

FrankRahman — Mon, 13 Jul 2026 22:56:28 GMT

FrankRahman uploaded File:Toshiba Video Board Ver 2 top.jpg

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Toshiba Video Board Ver 2 top

Monitor boards

FrankRahman — Sun, 12 Jul 2026 01:50:44 GMT

Toshiba

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	\| Toshiba Board \|\| Found in <br>		\| Toshiba Board \|\| Found in <br>
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	\| \|\| \|\|		\|
			[[File:Toshiba Video Board top.jpg]]
			\|\|
			[[File:Toshiba Video Board Bottom.jpg]]
			\|-
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	[[File:Toshiba Adjustments.jpg]]		[[File:Toshiba Adjustments.jpg]]
	\|}		\|}

File:Toshiba Video Board Bottom.jpg

FrankRahman — Sun, 12 Jul 2026 01:43:35 GMT

FrankRahman uploaded File:Toshiba Video Board Bottom.jpg

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Toshiba Video Board Bottom

File:Toshiba Video Board top.jpg

FrankRahman — Sun, 12 Jul 2026 01:42:57 GMT

FrankRahman uploaded File:Toshiba Video Board top.jpg

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Toshiba Video Board top

Kaypro 4X

FrankRahman — Sun, 12 Jul 2026 01:35:11 GMT

← Older revision		Revision as of 01:35, 12 July 2026
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	Model #81-015 (Stickered 4X)		Model #81-015 (Stickered 4X)
	{\|		{\|
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			[[File:4X sticker.jpg]]
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	[[File:Kaypro 4X 1.jpg\|400px]]		[[File:Kaypro 4X 1.jpg\|400px]]
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			[[File:4X drives.jpg]]
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	\|}		\|}
	~~Images from Chris Singleton~~

	It appears that there may be two Kaypro 4Xs to have survived.		It appears that there may be two Kaypro 4Xs to have survived.

	Around 2017-2020 there was one in the Los Angeles area that had been in the estate of a WWII German scientist, it ~~stayed~~ in the LA area~~, another~~ was in the ~~Vancouver~~, Canada area at ~~the same~~ time.		Around 2017-2020 there was one in the Los Angeles area that had been in the estate of a WWII German scientist, it was sold to someone in the LA area. The other 4X was in the British Columbia, Canada area at that time up to 2026 when I purchased it.

	[[Drivetec Drives\|See Drivetec Drives for what makes a Kaypro 4X a 4X]]		[[Drivetec Drives\|See Drivetec Drives for what makes a Kaypro 4X a 4X]]

File:4X drives.jpg

FrankRahman — Sun, 12 Jul 2026 01:32:16 GMT

FrankRahman uploaded File:4X drives.jpg

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4X drives

File:4X sticker.jpg

FrankRahman — Sun, 12 Jul 2026 01:31:22 GMT

FrankRahman uploaded File:4X sticker.jpg

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4X sticker

Main Page

FrankRahman — Sun, 12 Jul 2026 00:40:17 GMT

Hardware

← Older revision		Revision as of 00:40, 12 July 2026
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	[[Those weird round number stickers]]		[[Those weird round number stickers]]

			[[Mainboards]]

	[[Thoery of operations\|Micro Cornucopia - Theory of Operations]]		[[Thoery of operations\|Micro Cornucopia - Theory of Operations]]

Mainboards

FrankRahman — Sun, 12 Jul 2026 00:39:30 GMT

Created page with "Mainboard 81-110 - Kaypro II Mainboard 81-240 - Kaypro II and 4"

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[[Mainboard 81-110]] - Kaypro II

[[Mainboard 81-240]] - Kaypro II and 4

Mainboard 81-240

FrankRahman — Sun, 12 Jul 2026 00:36:28 GMT

81-240A Machines

← Older revision		Revision as of 00:36, 12 July 2026
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	\|-		\|-
	\| #17083 \|\| 53883 \|\| M-681? \|\| 81-232 \|\| 81-146 \|\| KII No Model Num \|\| FrankenKaypro?<br>Shield		\| #17083 \|\| 53883 \|\| M-681? \|\| 81-232 \|\| 81-146 \|\| KII No Model Num \|\| FrankenKaypro?<br>Shield
			\|-
			\| #69691 \|\| 14084 \|\| 189-W \|\| 81-232A \|\| 81-146A \|\| K4 81-004 \|\| Shield
	\|-		\|-
	\| #76797 \|\| 21658 \|\| NLS FT 51? \|\| 81-232A \|\| 81-146A \|\| KII 81-003 \|\| Shield		\| #76797 \|\| 21658 \|\| NLS FT 51? \|\| 81-232A \|\| 81-146A \|\| KII 81-003 \|\| Shield

81-240

FrankRahman — Sat, 11 Jul 2026 18:13:33 GMT

Created page with "81-240 was the primary mainboard used for the Kaypro 4. It was also used in the later Kaypro II after the release of the Kaypro 4. The previous board for the Kaypro II was the 81-110. ==81-240A== File:81-240A top.jpg File:81-240A bottom.jpg"

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81-240 was the primary mainboard used for the Kaypro 4. It was also used in the later Kaypro II after the release of the Kaypro 4.

The previous board for the Kaypro II was the [[Mainboard 81-110|81-110]].

==81-240A==
[[File:81-240A top.jpg]]

[[File:81-240A bottom.jpg]]

File:81-240A bottom.jpg

FrankRahman — Sat, 11 Jul 2026 18:12:17 GMT

FrankRahman uploaded File:81-240A bottom.jpg

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81-240A bottom

File:81-240A top.jpg

FrankRahman — Sat, 11 Jul 2026 18:11:40 GMT

FrankRahman uploaded File:81-240A top.jpg

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81-240A top

Swp copower 88

FrankRahman — Thu, 09 Jul 2026 00:49:18 GMT

← Older revision		Revision as of 00:49, 9 July 2026
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	\| [[File:73356 8088 card.jpg\|thumb\|CoPower Mainboard]]		\| [[File:73356 8088 card.jpg\|thumb\|CoPower Mainboard]]
			\|
			[[File:Plus 88 main board early.jpg]]<br>Early Main Board
			\|-

	\| [[File:73356 mem card.jpg\|thumb\|Memory Expansion Board]]		\| [[File:73356 mem card.jpg\|thumb\|Memory Expansion Board]]
	\|-		\|-
	\| [[File:73356 cpu card.jpg\|thumb\|CPU Board Top]]		\| [[File:73356 cpu card.jpg\|thumb\|CPU Board Top]]
	\| [[File:Copower mb board under.jpg\|thumb\|CPU Board Bottom]]		\|
			[[File:Plus 88 adapter board early bottom.jpg]]
			\|-
			\|
			\| [[File:Copower mb board under.jpg\|thumb\|CPU Board Bottom<br>This version has a Kaypro part number of 81-350]]
	\|}		\|}

File:Plus 88 main board early.jpg

FrankRahman — Thu, 09 Jul 2026 00:42:50 GMT

FrankRahman uploaded File:Plus 88 main board early.jpg

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Plus 88 main board early

File:Plus 88 adapter board early bottom.jpg

FrankRahman — Thu, 09 Jul 2026 00:40:54 GMT

FrankRahman uploaded File:Plus 88 adapter board early bottom.jpg

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Plus 88 adapter board early bottom

Power Supplies

FrankRahman — Thu, 09 Jul 2026 00:34:13 GMT

Boschert

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	\| '''Boschert XL53.3101R "Clear"'''		\| '''Boschert XL53.3101R "Clear"'''
	\|-		\|-
	\| [[File:Boschert1 2.jpg\|thumb]] \|\| [[File:Boschert1 label2.jpg\|thumb]] \|\| #8409 - MBO 9876 (82/43)<br>#12275 - MBO 3773 (82/48)		\| [[File:Boschert1 2.jpg\|thumb]] \|\| [[File:Boschert1 label2.jpg\|thumb]] \|\| #8409 - MBO 9876 (82/43)<br>#12275 - MBO 3773 (82/48)<br>Loose board - MBP 8280
	\|-		\|-
	\| '''Boschert XL53.3601R "Green"'''		\| '''Boschert XL53.3601R "Green"'''
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	\| '''Boschert XL60.3601R'''		\| '''Boschert XL60.3601R'''
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	\| [[File:Boschert2.jpg\|thumb]] \|\| [[File:Boschert2 rifa.jpg\|thumb]] \|\| [[File:Boschert2 label.jpg]]		\| [[File:Boschert2.jpg\|thumb]] \|\| [[File:Boschert2 rifa.jpg\|thumb]] \|\| [[File:Boschert2 label.jpg]]<br>
			[[File:Boschert XL60 3601 label.jpg]]
	\|-		\|-
	\| [[File:Boschert 50 & 60 chart.jpg\|thumb]]		\| [[File:Boschert 50 & 60 chart.jpg\|thumb]]

File:Boschert XL60 3601 label.jpg

FrankRahman — Thu, 09 Jul 2026 00:33:37 GMT

FrankRahman uploaded File:Boschert XL60 3601 label.jpg

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Boschert XL60 3601 label

Monitor boards

FrankRahman — Thu, 09 Jul 2026 00:20:49 GMT

B&H?

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 [[File:B&H board bottom.jpg]]
 |}

File:Video Board clipped corner bottom.jpg

FrankRahman — Thu, 09 Jul 2026 00:20:09 GMT

FrankRahman uploaded File:Video Board clipped corner bottom.jpg

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Video Board clipped corner bottom

File:Video Board clipped corner top.jpg

FrankRahman — Thu, 09 Jul 2026 00:19:31 GMT

FrankRahman uploaded File:Video Board clipped corner top.jpg

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Video Board clipped corner top

Vocabulary Systems

FrankRahman — Sun, 05 Jul 2026 22:37:14 GMT

← Older revision		Revision as of 22:37, 5 July 2026
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	From very early on Andy Kay was involved in efforts to build peoples vocabularies.		From very early on Andy Kay was involved in efforts to build peoples vocabularies. That work was picked up by David Kay who continues to work on technology solutions to expand people's vocabulary.

	[[File:Vocabulary Builder V1.jpg]]		[[File:Vocabulary Builder V1.jpg]]
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	[[File:Lexicon machine closeup.jpg]]		[[File:Lexicon machine closeup.jpg]]

			{\|
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			[[File:Kaypro VIP cover.jpg]]
			\|\|
			[[File:Kaypro VIP tapes.jpg]]
			\|}

File:Kaypro VIP tapes.jpg

FrankRahman — Sun, 05 Jul 2026 22:35:48 GMT

FrankRahman uploaded File:Kaypro VIP tapes.jpg

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Kaypro VIP tapes

File:Kaypro VIP cover.jpg

FrankRahman — Sun, 05 Jul 2026 22:35:11 GMT

FrankRahman uploaded File:Kaypro VIP cover.jpg

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Kaypro VIP cover

File:Lexicon machine closeup.jpg

FrankRahman — Sun, 05 Jul 2026 22:27:29 GMT

FrankRahman uploaded a new version of File:Lexicon machine closeup.jpg

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Lexicon machine closeup

Vocabulary Systems

FrankRahman — Sun, 05 Jul 2026 22:26:53 GMT

Created page with "From very early on Andy Kay was involved in efforts to build peoples vocabularies. File:Vocabulary Builder V1.jpg File:Vocabulary Builder V2?.jpg File:Lexicon machine closeup.jpg"

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From very early on Andy Kay was involved in efforts to build peoples vocabularies.

[[File:Vocabulary Builder V1.jpg]]

[[File:Vocabulary Builder V2?.jpg]]

[[File:Lexicon machine closeup.jpg]]

File:Vocabulary Builder V2?.jpg

FrankRahman — Sun, 05 Jul 2026 22:26:37 GMT

FrankRahman uploaded File:Vocabulary Builder V2?.jpg

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Vocabulary Builder V2?

File:Vocabulary Builder V1.jpg

FrankRahman — Sun, 05 Jul 2026 22:26:02 GMT

FrankRahman uploaded File:Vocabulary Builder V1.jpg

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Vocabulary Builder V1

File:Lexicon machine closeup.jpg

FrankRahman — Sun, 05 Jul 2026 22:22:38 GMT

FrankRahman uploaded File:Lexicon machine closeup.jpg

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Lexicon machine closeup

NLS

FrankRahman — Sun, 05 Jul 2026 20:02:31 GMT

Changes in NLS's Product Line

← Older revision		Revision as of 20:02, 5 July 2026
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	(Computer Shopper, August 1989)		(Computer Shopper, August 1989)
	</blockquote>		</blockquote>

			Also see [[NLS HiFi]] for the attempted stereo receiver.

	==Samples from a 1960's computer catalog==		==Samples from a 1960's computer catalog==

NLS HiFi

FrankRahman — Sun, 05 Jul 2026 19:57:19 GMT

@@ Line 1: / Line 1: @@
 <blockquote>
 According to David Kay when I asked if they were ever produced:<br>
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 </blockquote>
 {|
 |-

File:HiFi Compare.jpg

FrankRahman — Sun, 05 Jul 2026 19:38:43 GMT

FrankRahman uploaded File:HiFi Compare.jpg

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HiFi Compare

File:Andy Kay with HiFi.jpg

FrankRahman — Sun, 05 Jul 2026 19:37:04 GMT

FrankRahman uploaded File:Andy Kay with HiFi.jpg

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Andy Kay with HiFi

File:HiFi ADs Classic Quality.jpg

FrankRahman — Sun, 05 Jul 2026 19:35:44 GMT

FrankRahman uploaded File:HiFi ADs Classic Quality.jpg

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HiFi ADs Classic Quality

File:HiFi AD direct descendant.jpg

FrankRahman — Sun, 05 Jul 2026 19:33:58 GMT

FrankRahman uploaded File:HiFi AD direct descendant.jpg

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HiFi AD direct descendant

File:HiFi Electronics Aug 9 1965 AD.jpg

FrankRahman — Sun, 05 Jul 2026 19:29:51 GMT

FrankRahman uploaded File:HiFi Electronics Aug 9 1965 AD.jpg

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HiFi Electronics Aug 9 1965 AD

NLS HiFi

FrankRahman — Sun, 05 Jul 2026 16:26:34 GMT

← Older revision		Revision as of 16:26, 5 July 2026
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			<blockquote>
			According to David Kay when I asked if they were ever produced:<br>
			They never went into production. They made less than a 100. ... The idea for it was a collaboration with his top electronics technician, Sam Messin. They were both audiophiles. We had only MacIntosh stereo systems in our house when I was a teenager, the Non-Linear days.<br>
			That was one of his first attempt at a consumer product and as I explained earlier marketing was not his forte.
			</blockquote>

	{\|		{\|
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