Make this my favourite Beta Disk 128C floppy Controller ZX Spectrum 48K/128K - NEW '2019' VER. (last piece, finis

Category:
Retro Computers >> Sinclair >> Sinclair ZX Spectrum >> Hardware >> General / Add-Ons
Listing type:
Fixed Price Multiple Items
Item Condition:
New
Seller location:
Karlovy Vary, Czech Republic
Ending in:
This listing is closed (25/02/2019)
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Quantity Available
1
Fixed price:
$94.95 USD
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From only $14.95 USD
Payment methods:
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Number Sold:
0 (View history)

Item Number : 36107

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Description

A NEW '2019' VERSION !!!

NEW VERSION OF THE MOST POPULAR FLOPPY CONTROLLER FOR ZX SPECTRUM,

TWO TR-DOS SYSTEM VERSION FOR USER AVAILABLE!

(Complete, finished, functional device)

 

Advantages over competitors:

Proven, classical, tested design, no "black box" CPLD parts without documentation, quality processing, a very good solutions for supply routes!!! Precise solutions for interference!!! All signals amplified by the driver!!!

 

INTRODUCTION:


Beta Disk 128C is a controller for 1 to 4 floppy disk drives for ZX Spectrum and compatible
computers. It comes from the original interface of the same name from British company named Technology
Research Ltd, with which it is fully compatible. The design is virtually unchanged from the original wiring,
with just a few changes, the description of which will go further. This ensures compatibility with the original
interface.


"128" in the interface name indicates that it is a version of the ZX Spectrum operating with both 48KB and
128KB RAM. „C“ indicates Czech clone :-), or controller producer CSS Electronics, as you like ;-)


PARAMETERS:


- Optional to connect 1 to 4 floppy drives 3.5" or 5.25"
- Fully compatible with the ZX Spectrum 48KB, 128KB „toast rack“ and 128K +2 Amstrad gray box. It
is also compatible with other ZX Spectrum clones with a standard system connector and ROM
compatible with ZX Spectrum 48KB or 128KB, for example Didaktik M. Didaktik Gama can be
connected after additional fixing, see next description. Interface is incompatible with the ZX
Spectrum +2A, +2B and +3, these have non-standard signals ROMCS (2x) on the edge
connector and incompatible ROM.
- The device is realized on two printed circuit boards horizontally connected by connectors
- Fully through bus on the bottom board, drivers for all signals for the controller and memory on the
top board
- Used original FDC1793 floppy disk controller or analog
- Newly two different versions of the system TR-DOS, 5.05cz Fixed (stable high quality system) + 5.041 (contains TURBO Format of diskettes)
- LED power-on indication (green LED) and TR-DOS system activation (red LED)
- The bottom board (buses and drivers) are powered directly from the computer, top board (TR-DOS
and floppy controller) is powered by external source 7,5-9V/300mA max. via the rounded DC
power source connector 3,5/1,4mm (positive pole center)


COMPATIBILITY:


Because the schematic is largely taken from the original interface, is directly compatible with these
computers without any further modifications:
- ZX Spectrum 48KB
- ZX Spectrum 128KB „toast rack“ with radiator to the right
- ZX Spectrum 128KB +2 Amstrad gray box
- Didaktik M
- Other clone with standard system bus connector and compatible Sinclair Basic ROM


Compatibility depends on whether your computer is equipped with a system connector with a
standard distribution of the appropriate signals, which the Beta Disk 128C interface uses.

 

 

Complete documentation is available here:

English language PDF: https://ulozto.cz/!hXp4afdPzT3B/betadisk-128c-v1-8-rev-1-eng-rar

Czech language PDF: https://ulozto.cz/!y68aBwlkZr4P/betadisk-128c-v1-8-rev-1-cz-rar

 

Picture gallery

  • Beta Disk 128C floppy Controller ZX Spectrum 48K/128K - NEW '2019' VER. (last piece, finis
  • Beta Disk 128C floppy Controller ZX Spectrum 48K/128K - NEW '2019' VER. (last piece, finis
  • Beta Disk 128C floppy Controller ZX Spectrum 48K/128K - NEW '2019' VER. (last piece, finis

Youtube Video





Questions and Answers

Shipping and Payment

Item Location:
Karlovy Vary, Czech Republic
Shipping conditions:
Buyer pays shipping expenses
Shipment fee:
  • To Czech Republic :
  • First Class Post : $14.95 USD For initial item, $2.00 USD Per additional item
  • To EU :
  • Airmail Post : $25.00 USD For initial item, $4.00 USD Per additional item
  • To Rest of Europe :
  • Airmail Post : $25.00 USD For initial item, $4.00 USD Per additional item
  • To Rest of World :
  • Airmail Post : $25.00 USD For initial item, $4.00 USD Per additional item
Shipment terms:
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Payment methods:
Paypal, Bank transfer

The seller accepts all responsibility for this listing

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