Recom 5V 1A DC-DC converter voltage regulator

A great top quality replacement for the 7805 5V 1A voltage regulator in ZX80, ZX81, ZX Spectrum 16K and 48K.
No heat, very power efficient.
As good as the Traco Power voltage regulators.

Pin compatible with the 7805.
Has a smaller footprint than the 7805, so fits at the location of the 7805 without any problem.
Offers the same power output as the standard 7805: 1A.

No heat, so no heatsink required.
Will increase the lifetime of your computer!

Photo shows the 7805 for reference as well:


Speccy Breadboard – Black

Many ZX Spectrum enthusiasts would like to be able to experiment a bit with I/O connected to their computer.
This is your opportunity of doing just that!
All signals of the ZX Spectrum edge connector are available for you to wire to your own selection of parts to put on the breadboard (400 pins).

Included in this kit are:

  • The assembled -black- Speccy Breadboard with edge connector, breadboard and female headers
  • A 65 piece breadboard-wire kit
  • A manual – read it online here (it’s still the first version)

On the board all signals that are available at the female pin headers, are printed in clear white text.


In the near future ByteDelight will offer some additional cool and fun easy project kits to interface to the ZX Spectrum, specially designed for this breadboard kit.



It’s very easy to damage the ZX Spectrum by making a mistake with the wiring.

Genius DX-110 black USB optical mouse for K-Mouse Turbo interface

Genius DX-110 black USB optical mouse

PS/2 compatible protocol, for e.g. retro (computer) equipment

Works with K-Mouse Turbo interface for the ZX Spectrum


Because this mouse will not fit in a letterbox, it has to be shipped as package, hence the increased shipments costs.

Combine shipment with other products from this webshop to save costs!

Opus Discovery maintenance kit

This refurbishment kit is not for all board revisions for the Opus Discovery!

It is often NOT EASY to replace these parts in an Opus Discovery!
More info can be found in this Opus Discovery Maintenance Manual (click).

This offer is for a set of brand new replacement parts for the Opus Discovery floppy disk system:
– 2x Vishay VS-2KBB20 bridge rectifiers
– 2x 4700uF Radial capacitors
– 2x 1uF Radial capacitors
– 2x 10uF Radial capacitors
– Printed Opus Discovery Maintenance Manual (click)

The Opus Discovery is an add-on made in 1985 for the ZX Spectrum –  read more about the Opus Discovery here.

The original bridge rectifiers assembled from factory in a Opus Discovery system, are of poor quality.
With many users their Opus Discovery failed after adding a second Floppy disk drive, because the current drawn through these Bridge Rectifiers exceeded their maximum.
Many of the original bridge rectifiers bulge, and / or have visible melted plastic.

So it’s good as preventive maintenance of your Opus Discovery, to replace these bridge rectifiers, and also the old original electrolytic capacitors.

The kit comes with a printed copy of the latest version of the Opus Discovery Maintenance Manual (click).

Check out this Facebook group for loads of information or to leave questions about the Opus Discovery:

*Inner-blue* mug + duopack Jumbo Stroopwafels

This pack will make you happy!

  • A ByteDelight mug with blue insides – safe to drink from and dishwasher proof
  • An duopack of extra-large Stroopwafels

Serving tip (stroopwafel size may vary):


ZX-HD HDMI interface + Rasperry Pi Zero – complete set


The Raspberry Pi Zero 2 is NOT yet supported!
The ZX-HD requires a Raspberry Pi Zero or Raspberry Pi Zero W
(with or without pre-soldered pin header)


Please know that we are very limited in Raspbery Pi Zero stock!
We are able to only obtain small amounts from time to time.

ZX-HD header grey

The ZX-HD: the first HDMI interface for the ZX Spectrum
– with ULAplus™!

Complete with quality 2m HDMI cable!

No soldering required!
To save on shipping, you need to finish the very easy assembly steps, described underneath

Reviews of the ZX-HD:


– Connect your ZX Spectrum to a modern TV through HDMI – no more composite video or antenna!
– No need to modify your ZX Spectrum!
– Games with 64 colours on your ZX Spectrum with ULAplus™ !
– ZX Spectrum 128 video memory support: works with any software that uses both video buffers!
– Synchronous to ULA timing – software with border and multicolour effects run as they should!
– Colours have been thoroughly calibrated to keep the unique feel of the ZX Spectrum
– Throughput edge connector for other devices


Does the ZX-HD work with other devices, such as a DivMMC EnJOY!, DivMMC Future, PlusD, or anythine else?
Yes, the ZX-HD is ‘fully transparent’, so it should not have any influence on other devices connected at the same time.

The ZX-HD is fully compatible with all Sinclair ZX Spectrum models:
ZX Spectrum 16K, 48K, 48K+, 128K, +2, +2A, +2B, +3, Harlequin kits and some clones.

Works great with the DivMMC EnJOY! PRO series SD card interfaces (check the webshop)!

Check this compatibility chart for more information.

This ZX-HD product offer includes:

– Raspbery Pi Zero
– Professionally custom 3D printed ZX-HD case with rainbow label!
– Micro SD card + SD adapter, containing the ZX-HD firmware
– Mini-HDMI to HDMI cable
– Printed manual – the latest version of the manual is found on the ZX-HD page (click)

Easy assembly

All parts needed to assemble and complete the ZX-HD are included.
The ZX-HD has been designed as an easy to assemble kit to be able to ship it in a letterbox, and save on shipping.
All you need is a small Phillips / cross-recess screwdriver, as is explained in the included manual.

Shipped with registered and insured service.


The ZX-HD has a throughput edge connector, to be able to connect another add-on:

Duopack Real Dutch Stroopwafels – the big ones!

Some people seem to like these more than their ZX Spectrum goodies 😉

If you can’t get enough of these and you’re not satisfied with the mini’s I add to orders, get some of these!



PlusDlite floppydisc interface with case + *Dual Floppy Drive + 10 disk set*

The PlusDlite Flopy Disk Interface
with professionally 3D printed case
Dual Floppy Drive set
5 disks filled with PlusDlite utilities + 5 empty disks

Add the fun of using floppies on a ZX Spectrum, for a truly nostalgic experience!

The PlusDlite Floppy Disk Interface

The PlusDlite is based on the succesful MGT PlusD floppydisc interface.
The PlusD and it’s big brother – the Disciple floppydisc interface – were the best floppydisc interface available back then.
They were fast, had a really easy to use BASIC syntax, and were compatible with the most advanced floppydrives at the time: up to 80 track DS DD drives, with a maximum capacity of 800KB.
The PlusD also had snapshot functionality integrated, and came in a decent metal case.

The PlusDlite has:

  • An integrated Kempston joystick port
  • RESET button
  • NMI (snapshot) button!

Read the PlusDlite manual online here!
More information can be found at the dedicated PlusDlite website; click here!

Read the Dual Floppy Drive Set manual here.

The Dual Floppy Drive set

  • Manually crafted!
  • Also works on e.g. PlusD, Disciple, Betadisk, QL and other machines with Shugart Flopp Disk interface like BBC etc.
  • Including EU / UK / US power supply (the type that is needed in your country is included)

The set

The set comes with 5 Double Density Floppy discs with PlusD utilities, and 5 empty formatted DD disks.


Shipped by registered and insured service.







Example setup photo (ZX Spectrum is not included with this offer):


We have some new photos from August 2020!

Repair and refurbishment service for your ZX Spectrum 128K+ ‘toastrack’ board

Send in your own ZX Spectrum 128K+ toastrack mainboard for fixed price repair and refurbishment

Shipping costs specified are for return postage.

The refurbishment service excludes:

  • Replacement of the ULA chip in case it is not working 100%

The refurbishment service includes:

  • Necessary repairs
  • All new high quality Vishay electrolytic capacitors
  • Adding a heatsink to the ULA chip if it doesn’t have one already
  • Replacing the original 7805 regulator with a new 78S05 2A regulator
  • Composite video quality improvement
  • Unrainer modification (see the unrainer mod kit (click) for more info)
  • Fully tested with:
    • Diagnostic cartridge
    • DivIDE interface
    • DivMMC EnJOY! interface
    • Tape loading

1 year warranty.
Shipped by registered and insured service.

Send us your machine to repair & refurbish

After ordering this service, please send your mainboard + heatsink with 7805 regulator (!) to:
Iserelaan 6
5627NL Eindhoven
The Netherlands

Please add a note with your name and address.

Make sure to take care of the packaging of the mainboard: if possible use anti-static material and bubbelfoil to protect against physical damage.

Again: please send the heatsink with 7805 voltage regulator along with mainboard!