Tindie

RFC2795 Ltd

3,894 orders since Oct 29, 2015

214 Reviews

Bramcote, Nottingham, United Kingdom

Ships from United Kingdom.

Usually ships within 2 days

Custom Work Available

I am currently away. This store will reopen on 16 August. Apologies for any inconvenience.

Prototype PCB for RC2014

RFC2795 Ltd

$6.00

64K RAM Module For RC2014 - Z80 Homebrew Computer

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$22.42

Raspberry Pi Zero Serial Terminal for RC2014

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$28.31

Backplane 8 For RC2014 - Z80 Homebrew Computer

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$30.50

Digital IO Module For RC2014 Z80 Homebrew Computer

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$16.98

RC2014 Mini - Single Board Z80 Computer Kit

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$84.00

Pageable ROM Module for RC2014 Homebrew Computer

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$21.67

Universal Micro Keyboard

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$21.40

512k ROM 512k RAM RomWBW Module for RC2014

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$102.40

Z80 CPU v2.1 for Enhanced Bus RC2014

RFC2795 Ltd

$18.89

ESP8266 Wifi Module For RC2014

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$22.66

Backplane Pro for RC2014 - Z80 Homebrew Computer

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About

Tinkering with old 8 bit home computers to see what can be done with modern solutions.

Reviews

Review Breakdown

Average Ratings

Product: (4.79)

Documentation: (4.13)

Shipping: (4.88)

Communication: (4.70)

Brian | Aug. 11, 2020

Excellent Kit

For RC2014 Pro - Homebrew Z80 Computer Kit

The RC2014 has evolved from it's original design to be quite elegant. I purchased the Pro kit and read all of the online information I could find several times before beginning construction. The kit went together smoothly with no issues but when I powered up the first time I got nothing. I backed off and probed with the scope and everything checked out so I plugged it all back together and this time it booted! Turns out it probably worked the first time — I even had all of the jumpers set correctly! What I didn't have was a reliable USB serial adapter. I recommend using a tried and known good cable to start or, if you don't have one, get a genuine FTDI cable from a distributor like Mouser. Avoid the crap on Amazon like I got. Shipping was prompt but, due to the current current global status, took over three weeks to arrive. The kit is beautifully packed but mine suffered a mild gash in the top which resulted in one of the TTL chips requiring "surgery" to straighten its pins. No other damage. The ROM comes with several boot images but, for the Pro kit, only the CP/M boot monitor really works. Not a problem, though, and it invites you to get involved and write your own custom boot image. The only thing I would have liked to see in the kit is a complete and detailed assembly manual. There's an opportunity there for someone. Over all, a great kit and a blast to use. I'm now kicking myself for not keeping any of the many CP/M software disks I got back in the day...

Neil | Aug. 11, 2020

Saved me a lot of work and time.

For YM2149 Sound Card for RC2014 Retro Computer

I was about to start wire-wrapping a prototype board when I learned of the existence of the sound card. I'm using this card with a rather elderly AY3-8910 programmable sound generator chip.

The board is plugged into a backplane extender on a Minstrel 4th RC2014 machine and I've written some simple drivers in Forth to implement "PING" , "EXPLOSION" and "GUNSHOT". Getting the Minstrel to handshake with the GI chip was difficult at first until I realised I'd confused the register-select and data I/O addresses. It's a very satisfying feeling when the sounds appear.

The AY3-8910 chip and the card also provide some extra digital I/Os ( 2 x 8-bit ports ) so this card is very good value. I now have proper, authentic 1980s sound effects rather than just the standard "BEEP" function. The sound generator is semi-autonomous, so it can be generating some repetitive sounds while the host machine is going about its usual business.

I've fed the audio-out from this card to one channel of a stereo speaker, with a speech-synth driving the other channel.

Please note that there a multiple revisions of this board so refer to the appropriate revision of the schematics for jumper settings etc.

Wouter | July 27, 2020

Great kit that's a pleasure to build

For RC2014 Classic II - Homebrew Z80 Computer Kit

The kit comes with clear documentation, both on paper and - in more detail - via the web. Assembly is straightforward and the finished product is a sleek little computer with a lot of expandability options. I managed to botch one section and emailed the seller for assistance; got a reply with the debugging tips needed to track down and fix the issue.

If you are looking for an 8-bit kit to build, I can't think of a better place to start.

Adrian | July 22, 2020

Get twice the RAM or slightly less!

For 64K RAM Module For RC2014 - Z80 Homebrew Computer

This board gives your RC2014 a real upgrade! It gives you a new additional block of RAM with a variable size to match all your needs and ROM options. It even includes the option to map itself to ALL of the addressable space, giving you as an avid experimenter all the options for how to best make use of your RC2014 :)

Very happy with my new block of RAM and I'd highly recommend this to anyone with a RC2014 as it still works like the regular 32 kB board too.

Neil | July 15, 2020

Useful prototyping board.

For Prototype PCB for RC2014

I purchased a few of these boards for prototyping RC2014 designs. I'm currently prototyping separate single-channel ADC and DAC boards. Its a nice, clean, well laid-out board, with VDD and GND laid out for 0.3" wide DIP packages. Its certainly a cosmetic improvement when compared to using standard strip-board or perf-board. There's not a great deal of room if you want to use full address-decoding, but otherwise fine.

It also makes a nice tidy adaptor/plug if I want to connect up my 'scope or logic analyser to the bus.

The board really doesn't warrant any documentation so I've rated it "amazing" anyway. Pin 1 has a square pad rather than a round pad, following usual convention. Sorted! ;O)

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