Elektor Junior Book 3 added

Thanks to Joan from Barcelona I have added book 3 of the Elektor Junior range.

TIM-2 a ‘modern’ recreation of a TIM-1 system

Peter Renaud has designed a TIM system with a 6532, a 6502, some RAM, ROM and glue logic that runs the TIM-1 sofware.

Read here for the cicuit diagram and assembler source.


KIM-1 Clone

A KIM-1 clone build by Bob Applegate of Corsham technologies.

Somewhat inspired by the microKIM by Vince Briel, who was inpired by Ruud Baltissen! The idea is replace the 6530’s with 6532 and by carefull memory decoding have the I/O, timer and RAM of the 6532s appear at the same locations as the 6530-002 and -003. ROM is added with an EPROM.

Not an exact copy, the ROM has been changed/enhanced with a KIM Monitor by Bob, though the original KIM-1 ROM should work also.


Digital group 6501 board

Very few systems were build with a 6501.

The Digital Group did, see here!


Talking Electronics TEC-1

Australian Z80 system, described in the magazine Talking Electronics.

I will start building a TEC-1D!

Posted in Z80

RC2014 and 6502

About to start building RC2014 systems! Classic, Pro, 6502 based.


MCS Alpha 1 update

Found more interesting documents around the MCS Alpha 1, page updated!


MPS-65 CT-65 Thaler AG SBC’s

A new page on the SBC’s MPS-65 and CT-65.

With photo’s, information, manual and disassembly of the system ROM. Read More


GTE C65SC32P-2

New IC’s in to the collection!




6501 photo and datasheet

The MCS6501, a first and very rare member of the MOS Technology 65xx CPU family.
Introduced in 1975 with the MCS6502 to MCS6505, pin compatible with the Motorola 6800 and, after legal issues, not produced afterwards.
The (preliminary) datasheet of August 1975 is the only document where the 6501 is documented