All the resources listed below are available, free of charge, to members.
The EOCS magazine, EOM, contains articles on most aspects of electronic organ building.
EOM CONTENTS LIST, ABBREVIATED.
SYSTEM DESIGN
Analogue, digital and PC systems
Quality, cost, complexity and build time tradeoffs
CONSOLES
Adapting existing console.
RCO and AGO console dimension drawings
Building from scratch
Keyboards (including reconditioning)
Drawstops
Expression Pedals
Pistons
TECHNOLOGY
Soldering
Making PCBs
Casting with resins
Surface mount technology
3D plastic printing
Switches (contact, Hall effect, reed-magnet, optical)
CIRCUITS
Analogue (gates, swell pedal, oscillators, filters)
Digital (frequency generators, serial midi scanner, MIDI-USB Interfaces, keying matrix, couplers)
SYNTHESISERS
Expanders eg Ahlborne
Computer eg Hauptwerk, Grand Orgue. Raspberry Pi
Specifying a PC
Building a PC
Installing software
Custom organ design(Hauptwerk)
Sound Sampling
AMPLIFIERS
Circuits, op-amp and IC
Switch-on transient suppressor
REVERBERATION
Recommended commercial designs
Optimising reverberation
SPEAKERS
Cabinet design
Choosing a driver
Recommended commercial designs
POWER SUPPLIES
General purpose units
Supply for solenoid drawstops
Plug-in supply review
TEST EQUIPMENT
Frequency counter
Frequency reference
RC Bridge
ANALOGUE SYSTEMS AND CIRCUITS BOOK
This book, available on a CD, was written by Dr Colin Pykett, an internationally known author on organ topics. It contains virtually all of the circuits needed to make a complete organ. Printed Circuit Boards (PCBs) for many of the circuits are available.
USEFUL LINKS
Links to useful sources of information, including component sources and free software, is available on the MEMBERS PAGE.
RECORDINGS LIBRARY
Recordings of members instruments are available via the MEMBERS PAGE.
TECHNICAL DOCUMENTS
A list of key papers and books, including ones on reverberation, synthesis, analysis, acoustics, loudspeaker design and designing with PICs, is available.
The EOCS magazine, EOM, contains articles on most aspects of electronic organ building.
EOM CONTENTS LIST, ABBREVIATED.
SYSTEM DESIGN
Analogue, digital and PC systems
Quality, cost, complexity and build time tradeoffs
CONSOLES
Adapting existing console.
RCO and AGO console dimension drawings
Building from scratch
Keyboards (including reconditioning)
Drawstops
Expression Pedals
Pistons
TECHNOLOGY
Soldering
Making PCBs
Casting with resins
Surface mount technology
3D plastic printing
Switches (contact, Hall effect, reed-magnet, optical)
CIRCUITS
Analogue (gates, swell pedal, oscillators, filters)
Digital (frequency generators, serial midi scanner, MIDI-USB Interfaces, keying matrix, couplers)
SYNTHESISERS
Expanders eg Ahlborne
Computer eg Hauptwerk, Grand Orgue. Raspberry Pi
Specifying a PC
Building a PC
Installing software
Custom organ design(Hauptwerk)
Sound Sampling
AMPLIFIERS
Circuits, op-amp and IC
Switch-on transient suppressor
REVERBERATION
Recommended commercial designs
Optimising reverberation
SPEAKERS
Cabinet design
Choosing a driver
Recommended commercial designs
POWER SUPPLIES
General purpose units
Supply for solenoid drawstops
Plug-in supply review
TEST EQUIPMENT
Frequency counter
Frequency reference
RC Bridge
ANALOGUE SYSTEMS AND CIRCUITS BOOK
This book, available on a CD, was written by Dr Colin Pykett, an internationally known author on organ topics. It contains virtually all of the circuits needed to make a complete organ. Printed Circuit Boards (PCBs) for many of the circuits are available.
USEFUL LINKS
Links to useful sources of information, including component sources and free software, is available on the MEMBERS PAGE.
RECORDINGS LIBRARY
Recordings of members instruments are available via the MEMBERS PAGE.
TECHNICAL DOCUMENTS
A list of key papers and books, including ones on reverberation, synthesis, analysis, acoustics, loudspeaker design and designing with PICs, is available.