Maplin 3800 & 5600s Stereo Synthesizers Construction Booklet

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"Maplin 5600s 4800 (sic) analogue synth synthesier kit instruction manual.

This is a very rare opportunity to secure a significant item:
instructions for the building of perhaps the greatest analogue synthesier ever created: The Maplin 5600s."

In the hall of the mountain king on Synthesisers

Published on Jun 27, 2015 markusfuller

"Just a Bit of fun, I decided to remake an old favourite on my synthesisers. in the hall of the mountain king by Edvard Grieg. recorded using Moog Theremini, Moog Phatty, Moog Sub 37, roland TR-8 & TB-3, & the Maplin 5600s, Maplin Spectrum Synth & a Bass guitar."

Maplin 5600s Part Three vintage analog synthesiser repair MF#47

Published on May 29, 2015 markusfuller

"This is the Third & FINAL part of the repair of the rare 1979 vintage analog synthesiser from Maplin electronics."

All parts here.

Maplin 5600s Part TWO vintage analog synth repair MF#46

Published on May 5, 2015 markusfuller

"this is the Second part of the repair of the rare 1979 vintage analog synthesiser from Maplin electronics. I am not sure how many parts this will be as I'm still repairing it or rather rebuilding it."

Part 1 here.

Maplin 5600s vintage analog synth repair PART ONE MF#45

Published on May 3, 2015 markusfuller

"this is the first part of the repair of the rare 1979 vintage analog synthesiser from Maplin electronics. I am not sure how many parts this will be as I'm still repairing it or rather rebuilding it."

In the hall of the mountain king on Synthesisers

Published on Jun 27, 2015 markusfuller

"Just a Bit of fun, I decided to remake an old favourite on my synthesisers. in the hall of the mountain king by Edvard Grieg. recorded using Moog Theremini, Moog Phatty, Moog Sub 37, roland TR-8 & TB-3, & the Maplin 5600s, Maplin Spectrum Synth & a Bass guitar."

MAPLIN 5600s vintage semimodular analog synthesizer with Original Manuals

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"It's a fully refurbished and very rare synthesizer monster in brand new cosmetically and electronically condition.

Semi modular design with a 30x30 pinmatrix section.
- 4 oscillator module with 6 waveform+sync
- 1 noise generator module adjustable from Pink to White noise
- 1 LFO+S&H module
- 5 Mixer module
- 1 Envelope generator module
- 2 Transient generator module
- 2 Switchable LP-HP Filter module
- 2 Switchable Amp+Ringmodulator module
- 1 Phase module
- 1 Reverb/Phase module
- 2 External input module
- 1 Foot pedal module
- 1 Foot switch module
- 1 Echo module
- 1 Stereo Output module
- 1 Joystick controller module
- Full size 48 key monophonic keyboard (digital controlled)
- 19 pin for pin matrix board

The sound of the instrument does unique and really fat, and the semi modular architecture give you endless possibilities of your creativity.

Including original service manual and patchbook. They are very rare items too! Built into own flight case with lid."

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Maplin 3800 analog monophonic synthesizer

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"Rare Maplin 3800 analogue synth. Good working condition. Serviced 2 months ago.

It has great sound capabilities because of the internal routing, the two VCOs (syncable), the noise generator, the S&H circuit (three different sources), three modulation sources, the ring modulator, the LFO, the VCF, the reverberation, the equalizer and the unique Transient circuit. The Transient Generator has 7 controls; Start Level (+ & -), Delay 1, Slope 1, Hold Level (+ & -), Hold Delay, Slope 2, and Final Level (+ & -). This means that you can, for example, control the Filter to close off and then open up and close off again in one envelope cycle. Like the Trapezoid circuit inside the EMS VCS3 synthesizer.

The Filter is a 24dB per octave type, just like the Minimoog, so you can get all the classic Bass and Lead sounds from this synth."

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Maplin 3800 Analog Monophonic Synthesizer

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"Rare Maplin 3800 analogue synth. Good working condition. Serviced 2 months ago.

It has great sound capabilities because of the internal routing, the two VCOs (syncable), the noise generator, the S&H circuit (three different sources), three modulation sources, the ring modulator, the LFO, the VCF, the reverberation, the equalizer and the unique Transient circuit. The Transient Generator has 7 controls; Start Level (+ & -), Delay 1, Slope 1, Hold Level (+ & -), Hold Delay, Slope 2, and Final Level (+ & -). This means that you can, for example, control the Filter to close off and then open up and close off again in one envelope cycle. Like the Trapezoid circuit inside the EMS VCS3 synthesizer.

The Filter is a 24dB per octave type, just like the Minimoog, so you can get all the classic Bass and Lead sounds from this synth."

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Maplin 5600S Synthesiser

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Pics of the inside below.

via the seller: "I built this synthesiser in the 80's and I have finally decided to sell it as I do not have time or space to use it any more.
It is still working but not fully. It has not been fully tested for some time.
Minor repairs are required and I suspect some internal wiring might need modifying to get it fully working.
The Hard Case is in excellent condition.
As you can see, the Patchboard comes with 12 original Patch Pins.

Specifications:

4 x VCO's (one in need of replacement Potentiometer)
5 x Mixers
2 x Filters
1 Envelope Control
2 x Transients
2 x Amplifiers
Sample and Hold
Reverb and Phase Control
Echo
Pink & White Noise Control
1 x Patchboard with 12 Patch Pins
1 x Joystick
Foot Pedal Controls but NO Foot Pedal.

An excellent project for an enthusiast or to break down for spares"

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Maplin ETI 4600 Synth

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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."

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Maplin 3800 Vintage Analogue Synthesiser

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"used but excellent condition Maplin 3800 analogue synthesizer, these are now incredibly rare. This machine has just come out of service with a full bill of health after being fully calibrated and checked over by one of the best synth engineers in the UK. Physical condition is excellent aside from a few marks from use. As pictured some of the knob caps are missing, they will be replaced by the time the auction ends with a similar alternative, please not the colour may differ slightly from the originals, its pretty cheap to replace them all if you want a more universal finish. This machine wipes the floor sonically with similar sized machines from Roland/Moog/ARP partly due to the Transient Generator which are normally only found on modular synths The 3800 has some useful unique features including an external input which allows you to put other instruments through the synth and a multi-stage Transient Generator which is far more flexible than a standard ADSR type Envelope generator fitted on most other analogue synths. The Transient Generator has 7 controls; Start Level (+ & -), Delay 1, Slope 1, Hold Level (+ & -), Hold Delay, Slope 2, and Final Level (+ & -). This means that you can, for example, control the Filter to close off and then open up and close off again in one envelope cycle! I don't know of many other analogue synths that can do that other than the ETI and Maplin ones. The Filter is a 24dB per octave type, just like the Minimoog, so you can get all the classic Bass and Lead sounds from this synth. Features: •48 note monophonic keyboard •Low Frequency Oscillator (LFO) •2 Voltage Controlled Oscillators (VCOs) with Sine, Triangle, Sawtooth, Inverted Sawtooth, and Square Wave output. Square wave can be adjusted or controlled from the LFO or Transient Generator. •Pseudo random Noise generator controllable between white and pink noise. •Sample and Hold •24dB Voltage Controlled Filter (VCF) with variious control input capabilities. •Voltage Controlled Amplifier (VCA) which allows Ring Modulation. •1 Envelope Generator with 5 controls •1 Transient Generator with 7 controls •External input which allows external signals to be matched to the synth and also generate a Trigger pulse •5 Stage Graphic Equaliser •Built in Spring reverb..."

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International 3600 4600 Original Vintage Publication

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"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

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

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"Martin Hannett's ( Joy Division producer and many Manchester and Factory bands producer, he played synths on many Factory records) actual International 4600 analog patchable synth . Not much needed to restore as cosmetically it is all there and the keyboard was triggering synth sounds recently, but sold as complete restoration project. comes with Martin Hannett's build and instruction manual from 1977/78/79/80 and copy of his patch notes..."

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

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"How to repair calculators

Digital Stopwatch Project

Hi-Fi… Construction… Communications… Developments"

Maplin 4600

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."

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MAPLIN 5600 DIY Synth Demo Video

Published on Mar 14, 2013 rafa torres·10 videos

"Demo del sintetizador Maplin 5600.

www.torresmusic.es"

ETI 4600 International synthesiser

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International 4600 ETI 4 Oscillator Synthesiser Kit

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"More Photos

This is the front panel and nearly all the boards for an International 4600 analog synthesizer.

This is a 4 oscillator 2 filter 3 transient patch bay programmed synthesizer. Capable of producing a very fat sound.

A section of the construction manual is given here..."

Maplin 5600S

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flickr set by tsaritup
(click for more including pics of the inside)


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This one spotted and in via Ununseptium warehouse.

Maplins International 4600 Synthesiser

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Pics of the inside & manual below.

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