Showing posts with label ETI. Show all posts
Showing posts with label ETI. Show all posts

Sunday, December 10, 2023


video upload by LOOK MUM NO COMPUTER

Don't miss 13:42. Rare ETI vocoder.

"What is this Strange #lesie #speaker. Featuring @Hainbach If you'd like to see ful videos of us recording these songs real time! and also get loads of other things whilst supporting the project check out here! :- -------------

Tuesday, July 11, 2023

A complicated 1980's kit to build a whole vocoder! POWERTRAN ETI VOCODER

video upload by LOOK MUM NO COMPUTER


download sounds from this synth to use, here :-

Friday, February 10, 2023

Micks Old ETI Analog Synthesizer

video upload by watikura

"Testing my old homemade 1975 synthesizer after cleaning, repairs and restoration. It's been sitting gathering dust and grime for about forty years but still works, just need to iron out a few more bugs still."

Wednesday, December 07, 2022

Rare Titan Synthesizer by Tim Orr of Powertran, Transcendent 2000, & Maplin ETI 4600

A Funky Uses For A Tape Machine and a massive Tape - MAGICALL E2 video upload by @THISMUSEUMISNOTOBSOLETE

Formant & Digisound get a mention as well. See this post for another video of the Titan and an article.

"Plans are a foot. if you want to get on the list use contact form below. if you'd like to Support the museum here :-
if you'd like to visit
information / contact:-

Friday, February 11, 2022

ETI 4600 Analogue Synth

via this auction

Pics of the inside below.

Sunday, August 27, 2017

ETI Vocoder

via this auction


Compare to this one minus the I/O and a different look.

Sunday, February 28, 2016

ETI & Formant Vocoder Demos

Published on Feb 28, 2016 Synthstation

Thursday, June 26, 2014

Maplin ETI 4600 Synth

via this auction

Some info via the seller: "Ok...., as far as i can tell its a finished project all parts there on the circuit boards with just a few wires to connect, keyboard and power supply socket which i have.
I had an external power supply made up by a professional who knows his synths, (ex BBC tech)
he has been inside these beasts before.
He thinks the power supply may have been taken out and an external one used as inside is a reverb tank that could have been picking up interference from the original, Makes sense.

The keyboard itself looks as if its never been played as its in excellent condition and is still in need of fixing down, about 4 screws i think but all the wood inside it fixes to is fitted.

This will definitely need servicing and some of the pots/controls are a bit stiff so some spray could well sort them out, also as you can probably tell if you know these synths is that its missing all its coloured caps, i personally think it looks far better like this and not like a toy but again these can be easily sourced if you wanted it totally original.
It has 6 of the original pins for the matrix board and i will supply info as to where to get more if you want them, i have collected all i could from the web about this synth which includes the original building and setting instructions plus other stuff."

Tuesday, October 15, 2013

International 3600 4600 Original Vintage Publication

via this auction

"Rare Australian publication 66 pages containing block diagrams, schematics, parts lists, theory of operation, PCB layouts, construction notes - everything you need to know in order to build a modular analog synth. Two models covered, International 3600 and 4600."

Seems like we are in a Maplin ETI run. Also posted in the last 30 days:

Joy Division Producer Martin Hannett's International 4600 Up for Auction?

ETI - Electronics Today International - Jan 1974: Full Scale Synthesizer Build

Maplin 5600S Analogue Vintage Syntheseiser Demo Video

Sunday, October 13, 2013

ETI - Electronics Today International - Jan 1974: Full Scale Synthesizer Build

via this auction

"How to repair calculators

Digital Stopwatch Project

Hi-Fi… Construction… Communications… Developments"

Maplin 4600

Tuesday, September 17, 2013

Maplin 5600S Analogue Vintage Syntheseiser Demo Video

Published on Sep 9, 2013 Monte Carlo·1 video

via this auction - learn how to sell on eBay here

"Demo of this rare, vintage, analogue matrix synth. All sounds are 'live'. The Deopher 'Dark Link' USB/MIDI to CV converter was used to interface PC to the synth to play a simple sequence.
This synth is for sale on Ebay (from 11.9.13) and privately elsewhere.
For full details check out the ebay listing."

Wednesday, September 04, 2013

[DEMO] Powertran -- ETI VOCODER

Published on Jun 22, 2013 LESINDES·94 videos

"Very powerful and very RARE Vintage Vocoder
14 Bands"

Tuesday, April 23, 2013

ETI 4600 International synthesiser

via this auction

Sunday, November 11, 2012

ETI 603 Sequencer and Friends: " Modular Lounge "

Published on Nov 11, 2012 by djessay101

"Trouby Modular Masterclock ( Master ), Roland DC-50 ( Space Effect), ETI 603 Sequencer + Korg MS-10 ( Bass ), DotCom Modular + Q119 Sequencer ( Beat + Sound ), Jupiter 4 ( Pad ), Jupiter 6 ( Arpeggio with Glide ), Fender Rhodes Mark1 88 with EH Holy Grail + Yamaha NE-1 Preamp + Roland SPH-323 Phaser, Pearl Syncussion SY-1 ( Sound )"

Tuesday, August 21, 2012

ETI 4600 Synthesiser Auction Video Overview & Demos

YouTube Published on Aug 9, 2012 by MikeyJTUK
4 part video series for this auction.

"ETI 4600 synthesiser demonstration. This is being sold on eBay from August 15th 2012 and ending on August 25th. World-wide shipping is available. This is an overview showing the complete 1970s vintage analogue synthesiser with an overview of the modules and layout.

This synth was a state-of-the-art design when it was conceived back in the1970s. Designed by Trevor Marshall in 1973, this synthesiser was offered in kit form by Maplin Electronic Supplies (in the UK). The parts cost was around £500, and was said to match the performance of synthesisers costing £1500 - that equates to a staggering £15,600 in today's money (according to calculator). This is a collector's dream! This actual synthesiser is featured on the home page of website, is fully working, and is in great condition considering it is some 35 years old. This synthesiser was built by me in 1977 when I was a teenager and has remained in my possession until now.

Not only is this a great asset for lovers of nostalgia and early electronic music history, but also for the modern day sound design engineer who can sample these great 70's sounds and combine the wonderful early synthesiser sounds with the precision, reliability, automation, and flexibility of modern DAW's!

See the other 3 parts for an in-depth demonstration."

Tuesday, July 24, 2012

Electronics Today International/Maplin 4600 Synthesiser

via this auction

"All components, pcb, keyboard, casing and internal hardware were supplied by Maplin in semi-kit form.

I personally constructed this in the late 70's , Maplin workshops set up all the boards that required it.

There is still a very small amount of work to do on this synth to complete it, the springline requires wiring in which is approx 4 wires, the joystick also requires final wiring up which is another small job. Anyone who remembers these synths will know about electronics and be able to follow the manual to complete it. The synth did play back in the 70's but I haven't used it since, I also don't have speakers etc now to listen to it on so I'm unable to run it now but there is no reason why it shouldn't work. You may find that some of the tantalum capacitors will require changing, it's usually the case with tants of this age, at least they would pop on my old Nascom which is from the late 70's. There is a very detailed manual which will come with the synth showing all the circuits and construction details, there is also a considerable number of pins for the patchboard. I have removed the back of the instrument whilst taking the photo's of the circuits for clarity, there is normally a back fitted."

Friday, July 13, 2012

Powertran ETI Vocoder 220V

This one is for sale in Spain.

220 v
recently serviced

If interested contact mentologo at

Friday, June 29, 2012

ETI VOCODER - Analog Powertran

via this auction

Wednesday, May 02, 2012

ETI/Maplin 4600

flickr set By uhddra
(click for more)

Sunday, February 26, 2012

ETI Maplin 5600 modular synth boards

via this auction

"Reading from the boards they are:
Power Supply (issue 3 BB40T) – built, but missing a power transistor (or IC regulator)
1979 Keyboard Controller (issue 5 BY88V) – built, appears complete.
Sample and Noise (issue 4 BY90X) – built, missing IC’s (and other parts).
2 x Oscillator (issue 2 BB38R) – built, both look complete but for 1 (the same) IC on both boards.
2 x Preset MTG PCB (issue 1 BY87) - each has 7 preset pots on – used for oscillator octaves..?
Transient Retrigger (issue 1 BY81C) – some components, incomplete.
MES Output Board (mod 1 BB47B) – Bare board.
Transient [Envelope Gen] (mod 2 BB43W) – Bare board.
Transient 2 [Envelope Gen] (issue 1 BB45Y) – Bare board.
VCF (issue 3 BB65V) – Bare board.
VCA Mk 2 (issue 1 BB44X) – Bare board.
Interface PCB (issue 2 BY86T) – Bare board.

Also included are 9 aluminium mounting brackets (drilled to take pots, but I’m unsure which boards they are for)."

Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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