[sdiy] Selling: Ensoniq ESQ-1 Main/Mother Board, for parts

[Rainer Buchty]

On Mon, 25 Jun 2018, DIY DSP wrote:

> These are some of the key chips found on this motherboard:
> Ensoniq ESQ-1
>
>   -  http://datasheet.datasheetarchive.com/originals/scans/Scans-000/Scans-0011921.pdf M5K4164AP DRAM chip
>   -  https://hxc2001.com/download/datasheet/floppy/thirdparty/FDC/WesternDigital/WD1772.pdf 5 1/4" floppy disk controller
>   -  http://datasheet.datasheetarchive.com/originals/distributors/Datasheets-8/DSA-154605.pdf Rockwell 6522AP VIA Versatile Interface Adapter
>   -  http://elcodis.com/parts/5785527/MC68B50P.html#datasheet MC68B50P ACIA Asynchronous Communications Adapter
>   -  http://www.datasheetlib.com/datasheet/733009/hd68b09ep_hitachi-semiconductor.html HD6809EP MPU Microprocessing Unit
>   -  Ensoniq 1261D DOC chip
>   -  https://pdf1.alldatasheet.com/datasheet-pdf/view/6761/NEC/UPC4084C.html NEC UPC4084D Op-Amp
>   -  http://www.synfo.nl/datasheets/CEM3328.pdf Curtis Four Pole Low Pass VCF Voltage Controlled Filter

That would be one mighty weird ESQ-1. Are you sure it's not a Mirage? ;)

The ESQ-1 neither has DRAM, nor floppy interface, nor VIA, nor CEM3328.

Rainer