Micro-Professor MPF-1B

A Z80 based SBC. Perfect trainer. In very good condition, with Tiny Basic built-in. Complete in original box, Monitor source listing, Multitect powersupply,
German handbook, alas no Basic template.

Works perfect:

Documents can be found on the site of Fred Kraan.

See also:

PAL-2

4 february 2025 2025 I have built the PAl-2 kit, now designing and building a I/O card. This information is based upon ...

John Bell PN 80-Z80

Z80 Microcomputer PN 80-Z80 PCB images by Gledn Deas, thanks!

PC Tools

Updated December 2020, Linux compilation checked, bugs fixed, online program for comverting binary to wave file. To a...

My retro toolchain

About my toolchains for retro computing. Tools are very personal choice, what works for me. I use Windows (11 now) a...

John Bell Z80 computer 80-280

Posted on 01/08/2022 by hanso

I received a photo and manual scans of the 80-280 Z80 SBC by John Bell.

See also:

Das EMUF Sonderheft 2

Thanks to Mathias Ohlerich for the scan of the Sonderheft 2

Now three!Just-for-Fun Fabio Defabis MBCs: Z80-MBC2, V20-MBC, 68K-MBC All well described on hackaday: Z80-MBC2 V20...

PC utilities updated

The PC utilities page has seen an update of th4 Conversion hex formats utility. Programs to manipulate the binary and...

Elektor Computing 5 German

Thanks to Martin Seine I have added the German version of Elektor Computing 5, dedicated to the EC65 systen, Z80 card, 6...

Z80 Microprocessor kit

Posted on 04/01/2022 by hanso

Design and text by Wichit Sirichote. The kit is available for sale, kit or assembled. Wichit picked the Z80 CPU and designed the microcomputer kit with HEX keys and 7-segment LED displays, and wrote the monitor program.The version I have is an older (slower) version with a monitor (source in User manual) close to the the Microprofessor 1b. The current one has a SDCC compiler generated monitor program.

See also:

Das EMUF Sonderheft 2

Thanks to Mathias Ohlerich for the scan of the Sonderheft 2

Now three!Just-for-Fun Fabio Defabis MBCs: Z80-MBC2, V20-MBC, 68K-MBC All well described on hackaday: Z80-MBC2 V20...

PC utilities updated

The PC utilities page has seen an update of th4 Conversion hex formats utility. Programs to manipulate the binary and...

Elektor Computing 5 German

Thanks to Martin Seine I have added the German version of Elektor Computing 5, dedicated to the EC65 systen, Z80 card, 6...

Z80 Microprocessor kit

Designed and sold by Wichit Sirichote. Full text and files at his website here. The kit is available for sale, kit or assembled!
Wichit picked the Z80 CPU and designed the microcomputer kit with HEX keys and 7-segment LED displays, and wrote the monitor program.

The version I have is an older (slower) version with a monitor (source in User manual) close to the Microprofessor 1b. The current one has a SDCC compiler generated monitor program.

	Z80 Microprocessor Kit
	Circuit diagram
	Z80 kit User Manual
	Z80 kit Construction
	Z80 lab book
	Lab book Assembler routines
	Show Memory on LED displays
	AN001 Using SDCC with the Z80 kit
	AN002 Using PLD as a decoder logic for Z80 Kit
	AN004 Z80 kit as calculator
	PLD files
	PLD sources
	SDCC version 20215
	SDCC sources for z80 kit
	Listing of the old Z80 kit monitor

See also:

PAL-2

4 february 2025 2025 I have built the PAl-2 kit, now designing and building a I/O card. This information is based upon ...

John Bell PN 80-Z80

Z80 Microcomputer PN 80-Z80 PCB images by Gledn Deas, thanks!

PC Tools

Updated December 2020, Linux compilation checked, bugs fixed, online program for comverting binary to wave file. To a...

My retro toolchain

About my toolchains for retro computing. Tools are very personal choice, what works for me. I use Windows (11 now) a...

Convert hex formats new version

Posted on 10/11/2021 by hanso

Bug fix release of the PC utility to convert MOS papertape, Intel hex, Motorola S record, Apple 1 hex etc. Windows and Linux. Source included.

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

Das EMUF Sonderheft 2

Posted on 04/06/2021 by hanso

Thanks to Mathias Ohlerich for the scan of the Sonderheft 2

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

Posted on 01/06/2021 by hanso

Now three!Just-for-Fun Fabio Defabis MBCs: Z80-MBC2, V20-MBC, 68K-MBC

All well described on hackaday:
Z80-MBC2
V20-MBC
68K-MBC

I bought these assembled from Giovanni Pirozzi. Excellent products and service!

See also:

Das EMUF Sonderheft 2

Thanks to Mathias Ohlerich for the scan of the Sonderheft 2

PC utilities updated

The PC utilities page has seen an update of th4 Conversion hex formats utility. Programs to manipulate the binary and...

Elektor Computing 5 German

Thanks to Martin Seine I have added the German version of Elektor Computing 5, dedicated to the EC65 systen, Z80 card, 6...

Z80 Elektor articles

A new Elektor page in the Z80 department: Z80 CP/M with ROM (thanks Martin Seine!)cards for the Elektor EC65 bus, mini c...

Just for Fun MBC’s

Just-for-Fun Fabio Defabis MBCs: Z80-MBC2, V20-MBC, 68K-MBC

All well described on hackaday:
Z80-MBC2
V20-MBC
68K-MBC

I bought these assembled from Giovanni Pirozzi. Excellent products and service!

Just-for-Fun has published designs for small MBCs, I ahev three of them: Z80-MBC2, V20-MBC and 68K-MBC.
All with a modern controller for startup and ROM and I/O and SRAM and a real CPU: Z80, V20 and 68008.
All with a SD card and a RTC, all running a variety of Oprarting systems, like CP/M, CP/M-86, CP/M-68K or UCSD PaScal and Basic. All can be programmed with e,g either Turbo Pascal (Z80, V20) or Pascal-MT+ (Z80, V20, 68K).
The user interface is via a serial interface, like USB serial to a PC emulator (Teraterm, Putty, Minicom) or standalone with the Ascii Video Terminal or the FABgl teminal solutions.

Z80-MBC2

V20-MBC

68K-MBC

See also:

PAL-2

4 february 2025 2025 I have built the PAl-2 kit, now designing and building a I/O card. This information is based upon ...

John Bell PN 80-Z80

Z80 Microcomputer PN 80-Z80 PCB images by Gledn Deas, thanks!

PC Tools

Updated December 2020, Linux compilation checked, bugs fixed, online program for comverting binary to wave file. To a...

My retro toolchain

About my toolchains for retro computing. Tools are very personal choice, what works for me. I use Windows (11 now) a...

PC utilities updated

Posted on 01/03/2021 by hanso

The PC utilities page has seen an update of th4 Conversion hex formats utility.

Programs to manipulate the binary and hex formatted files of interest for SBC owners. Intel hex, MOS papertape, Motorola S-record, binary, hex conversion fort eh 8 bit world.
Runs on Windows, Linux, Mac due to Lazarus and Freepascal. Source included.

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

Cosmicos donation

Cosmicos is the name for a SBC around the RCA 1802 CPU. Cosmicos stands for COSMAC MINI COMPUTERSYSTEM. Published in th...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

Elektor Computing 5 German

Posted on 13/02/2021 by hanso

Thanks to Martin Seine I have added the German version of Elektor Computing 5, dedicated to the EC65 systen, Z80 card, 65818 etc.

And have a look at the EC65 Z80 card page also

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...