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Model Electronic Railway Group Ltd

The Society for Model Railway Electronics and Computing

Over 50 years of Innovation: 1967-2025

Last update: 24-Dec-24

Technical Bulletins

MERG Technical Bulletins are circulated or supplied for personal or club use only. Commercial exploitation, re-publication, or re-copying is NOT PERMITTED without the written consent of the Model Electronic Railway Group, and, where practicable, the author.

Hover over the TB Title for a synopsis (where available)

AncillaryTOP OF PAGE
A01/01 A high frequency oscillator 68.9 kb 01-Jul-1994
A01/02 Construction & use of HF Oscillator to A1/1 50.0 kb 01-Jul-1994
A03/01 Point motor capacitor discharge power packs 20.8 kb 01-Aug-2000
A05/01 Sustained Tail Lamps 21.9 kb 01-Oct-1986
A06/01 Point motors: types, operation & indication 98.4 kb 01-Feb-1999
A06/02 Comparative tests of three Motor-driven Point Motors 18.4 kb 01-Feb-2001
A06/03 'Tortoise' Slow Motion Switch Machine (Point Motor) - Data Sheet 134.4 kb 01-Dec-2004
A07/01 Reed switches 41.1 kb 01-Jan-1995
A07/02 Hall effect switches 39.7 kb 01-Jan-1995
A07/03 Magnets - use with Reed and Hall Effect Switches 39.2 kb 01-Jan-1995
A08/01 Fast recharge capacitor discharge unit 20.5 kb 01-Jun-1995
A09/01 Capacitor discharge units using transistors (Issue 2) 47.3 kb 01-Jun-1995
A10/01 Light Emitting Diodes (LEDs) 274.5 kb 01-Apr-2019
A11/01 Twinkling gas lamps 303.2 kb 01-Sep-1996
A11/02 Gas Lamp Twinkler 138.1 kb 01-Feb-1998
A11/03 Flaming Hot Air Balloons, another use for twinklers 88.1 kb 01-Feb-2002
A12/01 Motorised turntable control unit(see also A17/1) 23.5 kb 01-Sep-1993
A14/01 A Measured Pulse capacitor discharge unit 91.5 kb 01-Aug-1994
A15/01 Meters - in model railway service 55.2 kb 01-Nov-1999
A15/02 Meters - interpreting the readings 58.1 kb 30-Nov--0001
A15/05 Connecting Meters to a Pentroller 58.2 kb 01-Aug-2000
A16/01 The 'Heiniken' track cleaner 20.6 kb 01-Jul-1995
A16/02 The 'Flying banana' motored track cleaner 42.7 kb 01-Sep-2001
A17/01 Turntable Operation using SCRs (see also A12/1) 43.4 kb 01-Jul-1995
A17/02 Turntable indexing using an Infrared photoreflective sensor 515.7 kb 01-Dec-2003
A18/01 Welding Arc Simulator (using CMOS) 25.6 kb 01-Dec-1995
A19/01 High Frequency Train Lighting (and Train-on-Track Indication) 33.1 kb 01-Jul-1996
A19/02 A High Quality Sine Wave generator 41.8 kb 01-Oct-1999
A20/01 The MERG Simple Shuttle (Demonstration track) 47.3 kb 01-Aug-1997
A21/01 Low Cost Current Display using a LED bargraph 36.7 kb 01-Nov-1996
A23/01 An Overload protected Controller Output stage 21.7 kb 01-Sep-1996
A24/01 Road Traffic Lights sequencer 27.0 kb 01-Oct-1996
A25/01 A Touch Switch for Control panels 47.1 kb 01-Nov-1996
A26/01 Servo Motor Driver (applied to loco water crane swing in & out!) 29.6 kb 01-Dec-1996
A29/01 Single Wire Point Motor Switching Unit 54.5 kb 01-Jan-1998
A30/01 Matrix Operation of Point Motors 48.7 kb 01-Feb-1998
A31/01 Matrix Control for Point Motors 20.1 kb 01-May-1998
A32/01 A Fast Analogue Clock 23.6 kb 01-Aug-2000
A32/02 An Analogue Scale Time Clock 77.3 kb 01-Aug-2000
A33/01 Section Isolating Switch with Isolation and Occupation Indication 33.0 kb 01-Aug-1999
A33/02 Pulse generator for Isolated/occupied indication 24.3 kb 01-Aug-1999
A34/01 Development of a Dual Point Motor (Solenoid type)Driver 50.8 kb 01-Aug-1999
A35/01 Instrumentation for a 7 1/4" Gauge Battery Loco 24.8 kb 01-May-2001
A36/01 The Faller Road System - Introduction 28.0 kb 01-Mar-2003
A36/02 The Faller Road System - Route Selection and Parking 64.4 kb 01-Oct-2004
A38/01 Programmable Servo Driver type "Servo 4" 66.6 kb 01-Jul-2007
A38/02 Setting Box for Servo 4 Driver Board 115.9 kb 01-Aug-2008
A39/01 A Simple RFID Reader Module 117.0 kb 01-Oct-2007
A39/02 Putting RFID to Work 1 - Basic Principles and Installation 318.6 kb 01-Jan-2012
A40/01 Stepper Motor Turntable Controller 288.3 kb 01-Mar-2010
A40/02 Putting the Turntable Controller (Stepper Motor) Kit 79 to Use 1,383.7 kb 01-Jun-2020
A41-01 Putting the Megapoints Servo Controller to Use 1,012.7 kb 01-Dec-2017
Automatic Train ControlTOP OF PAGE
ATC01/02 The ATC Shuttle Control System - An Overview 1,029.3 kb 01-Jul-2020
ATC02/01 The ATC Shuffle Mode 130.6 kb 01-Jan-2013
ATC03/01 Testing and Setting Up a Standard ATC System 2,100.6 kb 01-Jan-2013
ATC04/01 Putting the ATC to Work 1 - Planning Your Configuration 498.8 kb 01-Feb-2013
ATC05/01 Putting the ATC to Work 2 - Creating PIC Sequences 293.1 kb 01-Feb-2013
ATC06/01 Putting the ATC to Work 3 - Using the Excel Configuration Spreadsheet 440.7 kb 01-Mar-2013
Automatic Train Control 2TOP OF PAGE
ATC2-07 Automatic Train Ccontrol 2 - Overview 3,539.6 kb 01-Jun-2023
ATC2-08 ATC2-08 - ATC2 Shuffle Mode -WIP-TBA 9.0 kb 01-Jun-2023
ATC2-09 Automatic Train Control 2 - Testing and Setting Up the ATC2 system 322.9 kb 01-Aug-2023
CBUS®TOP OF PAGE
CBUS-00 CBUS - A universal layout control system. 262.2 kb 01-Dec-2008
CBUS-01 CANACC8 - 15Vac CBUS Module for driving LEDs, Lights and Relays 579.5 kb 01-Feb-2017
CBUS-02 CANACC4 - 15Vac CBUS Module for driving Solenoid Point Motors 676.4 kb 01-Feb-2017
CBUS-10 Planning for CBUS on your Layout 476.4 kb 01-Dec-2019
CBUS-12 CANSOL - 12Vdc CBUS Module for driving Solenoid Point Motors 959.5 kb 01-Apr-2015
CBUS-13 CANPAN - 12Vdc CBUS Module for driving Control Panels 1,206.5 kb 01-May-2019
CBUS-14 CANMIO - 16 channel Multiple Input Output module 10.3 kb 01-Apr-2017
CBUS-15 CANPiWI - CBUS WiFi Interface Module 78.1 kb 01-Apr-2017
CBUS-17 CANGIZMO - CBUS Module Bench Tester 2,573.5 kb 01-Sep-2018
CBUS-20/11 CANVOUT - 12V DC CBUS Module with 8 outputs and 8 inputs 2,374.3 kb 01-Jan-2020
CBUS-20/12 CANVINP - 2nd gen 12V DC CBUS Module with 16 inputs 1,148.3 kb 01-Nov-2023
CBUS-20/13 CANVSERVO 2nd gen 8 Servos + 8 inputs 2,622.9 kb 01-Jun-2021
CBUS-20/14 CANV4BIP - 12V DC CBUS Module with 4 motorised point drivers and 8 inputs 2,692.9 kb 01-Apr-2020
CBUS-21 CANINP 8 input replacement of CANACE8C 622.6 kb 01-Nov-2023
CBUS-22 CANOUT 8 output replacement of CANACC8 682.1 kb 01-Nov-2023
CBUS-23 Arduino CAN bus shield. 1,252.7 kb 01-Mar-2024
G32/03 CANACC5 - CBUS module for motorised point drivers etc. 313.1 kb 01-Jan-2008
G32/04 CANACE3 - CBUS module for Control Panels 100.5 kb 01-Jan-2008
G32/05 CAN-RS - An interface module between CBUS and Serial RS-232 220.1 kb 01-Aug-2008
G32/06 CANACE8C - CBUS 8 input combination module 161.2 kb 01-Nov-2009
G32/07 CANLED - CBUS module for driving 64 LEDs 107.5 kb 01-Jan-2008
G32/08 CANSERVO8 CBUS module for driving R/C Servos 50.7 kb 01-Dec-2008
G32/11 Using the CBUS Experimenters Kit, Kit 90 147.4 kb 01-Aug-2012
Comp./Command ControlTOP OF PAGE
CC02/01 The Interlocker System (Computer Control of Model Railways) 32.3 kb 01-Jul-1998
CC02/02 The Interlocker System - the Hardware (Issue 3) 42.7 kb 01-Jul-1998
CC02/06 The Signalman System (Peter J. Day M508) 67.9 kb 01-Apr-2001
CC02/11 Computer Control in the Vale (Pendon Museum) 17.8 kb 01-May-1995
CC03/01 The I2C Interfacing system and its relevance to Model Railways 28.4 kb 01-Apr-1999
CC04/01 Command Control Route Indication 40.5 kb 01-Aug-1999
CC04/02 Command Control Train on Track Indication using MERG TOTIs and Power supply 30.0 kb 01-Aug-1999
CC05/01 The Airfix Multiple Train Control System 181.4 kb 01-Aug-2000
CC21/01 Route Setting using a Microcontroller 20.5 kb 01-Apr-1996
CC22/01 Computer-controlled Fiddle Yard project 43.2 kb 01-Jul-1996
CC23/01 What you need to know to use the PIC Microprocessor 18.1 kb 01-Aug-1997
CC23/02 Programming a PIC Microprocessor 34.5 kb 01-Aug-1997
CC24/01 Computers and Model Railways - an Overview 28.9 kb 01-Oct-1997
ComponentsTOP OF PAGE
B01/01 Preferred Values for electronic components 31.7 kb 30-Nov--0001
B02/01 Resistor colour coding 43.3 kb 01-Dec-2007
B04/01 A Summary of Op Amps 24.2 kb 01-Jul-1996
DCCTOP OF PAGE
DCC01/01 Getting into DCC - a review of several commercial systems 20.2 kb 01-Jan-1999
DCC02/01 Introduction to NMRA Digital Command Control 28.5 kb 01-Jan-2001
DCC02/02 NMRA Decoder Configuration Variables (CVs) for ZTC / Lenz / Digitrax 21.7 kb 01-Jan-2001
DCC03/01 Building a DCC decoder for N gauge 32.6 kb 01-Mar-1998
DCC04/02 DCC Loco Conversions 54.7 kb 01-Jan-2000
DCC11_05 MERG DCC8 Command Station - DEscription and Operation 301.8 kb 01-Jul-2020
DCC11/03 MERG DCC handset HS2 (Rev B): Technical description and use 50.6 kb 01-Oct-2003
DCC11/11 MERG DCC Accessory System: Overview, & Testing Assembled Kits 74.6 kb 01-Apr-2006
DCC11/12 The MERG DCC Accessory Encoder (Version 2B) 148.6 kb 01-Apr-2006
DCC11/13 The MERG DCC Pulsed Output Accessory Decoder (Version 2B) 178.3 kb 01-Oct-2003
DCC11/14 The MERG DCC Accessory Decoder Version 3B - Steady State outputs. 152.4 kb 01-Jul-2006
DCC11/19 Further Uses for the MERG DCC Steady State Accessory Decoder 110.5 kb 01-Apr-2009
DCC20-01 The MERG 2nd gen DCC User's Guide 657.7 kb 01-Jul-2013
DCC21/05 The MERG 2nd Generation DCC System 1,177.7 kb 01-Jul-2021
Electronic TechniquesTOP OF PAGE
ETEC-01 USB to Parallel Bus Interface (MERG-USB) 322.0 kb 01-May-2015
GeneralTOP OF PAGE
G01/01 Transistors 44.3 kb 01-Mar-2001
G02/01 Relays - updated 21.1 kb 01-Apr-2001
G02/03 Latching Relays (and use for vehicle directional lighting) 22.7 kb 01-May-2001
G03/01 Digital logic 162.7 kb 01-Feb-2010
G05/01 Microprocessors and model railways - updated 34.5 kb 01-Apr-2001
G06/01 Computer interfacing (Parts 1 & 2) 88.8 kb 01-Feb-2001
G07/01 Multiplexing 22.5 kb 01-Mar-2001
G08/01 A practical introduction to logic circuits 108.1 kb 01-Aug-1994
G09/01 A loco controller using the Sinclair Spectrum with postscript 69.8 kb 01-Jan-2001
G10/01 Sound and model railways 34.3 kb 01-Jan-1987
G12/01 Diode - FET logic - a new family ? 261.4 kb 01-Jan-1989
G13/01 A novel approach to layout wiring diagrams 32.2 kb 01-May-2000
G14/01 The on-board controller 208.6 kb 01-Feb-1992
G15/01 Loco controller using the Centronics interface 75.9 kb 01-Mar-1992
G16/51 A Computer-controlled Throttle unit 192.4 kb 01-Sep-2000
G16/55 An introduction to Tcc (Train control centre) software 384.1 kb 01-Oct-2005
G16/56 Writing scripts for TCC - A tutorial 346.4 kb 01-Jul-2005
G16/71 Layout Wiring: a radically new approach 78.4 kb 01-Sep-2000
G16/72 Layout wiring Part 2: Assembling PtP and RPC kits: Installation and testing 54.6 kb 01-Feb-2001
G16/85 Model Railway Computer Control Centre (MRCCC): Overview 211.6 kb 01-Jul-2005
G16/86 Model Railway Computer Control Centre (MRCCC): User Guide 266.3 kb 01-Jul-2005
G16/87 Computer Assisted Cab Control (CACC) 243.1 kb 01-Mar-2006
G18/01 CARLOS unveiled - Your Control Panel on your PC Screen 159.8 kb 01-Nov-1999
G19/01 Notes on the use of Memory Wire 36.8 kb 01-Apr-1997
G19/02 Memory Wire for Points Actuation - comparison of 'One Way' and 'Reversing' wire 45.8 kb 01-Oct-1997
G20/01 A simple voltage indicator 33.7 kb 01-Aug-1998
G22/01 A Memory wire Turnout Operating Unit - MWTOU 79.1 kb 01-Nov-1998
G23/01 Constant current driver for Memory wire 22.7 kb 01-Feb-1999
G23/02 Adjustable drive circuit for Memory wire 18.7 kb 01-Dec-2000
G24/01 Analogue Controllers for a G gauge Garden Railway 85.1 kb 01-Nov-1999
G24/02 Train servo amplifier Testing (as used for G24/1) 26.6 kb 01-Dec-1999
G25/01 Using the 555 timer 104.8 kb 01-Jan-2000
G26/01 A Moving Message Simulator 42.7 kb 01-Feb-2001
G27/01 Solid State Overload Protectors 73.5 kb 01-Jun-2000
G28/01 Diode Controlled Slow and Stop sections 73.1 kb 01-Aug-2000
Layout CablingTOP OF PAGE
LC01/03 Guidance for Model Railway Layout Cabling 498.5 kb 01-Feb-2024
LC02/01 Point to Point-Lite (PTP-Lite) 735.2 kb 01-Aug-2014
LC02/02 Putting PTP-Lite to Work - External Interfacing 798.1 kb 01-Aug-2014
LC02/03 Putting PTP-Lite to Work - System Installation 512.8 kb 01-Oct-2015
LC02/04 PTP-Lite - USB and Serial Interface Backplanes 682.5 kb 01-Oct-2015
LC02/05 Putting PTP-Lite to Work - RFID Data Transport 445.6 kb 01-Oct-2015
PracticalTOP OF PAGE
P01/01 Practical Guide to Crimping and Insulation Displacement Connectors (IDC) 38.7 kb 01-Apr-2003
P02/01 Guidance for Building a Typical MERG Electronic Kit 284.2 kb 01-Sep-2022
ReferencesTOP OF PAGE
R05/01 Bibliography:'Electrical and Electronics' Series, NMRA Bulletin (US) 32.8 kb 30-Nov--0001
R09/01 Model Railway Electronics - Index to Friberg books 1, 3 & 4. 63.1 kb 01-Feb-2007
R10/01 Book Index- A Practical Introduction to Surface Mount Devices 33.3 kb 01-Jan-2003
RPCTOP OF PAGE
G16/00 Remote Panel Control(RPC) System - Progress Report No. 1 40.1 kb 01-Aug-1995
G16/01 Remote Panel Control(RPC) System - Progress Report No. 2 44.3 kb 01-Dec-1995
G16/02 RPC System - Index to bulletins G16/3 - G16/24 29.0 kb 01-Feb-1999
G16/03 RPC System - System Overview 214.5 kb 01-Mar-1996
G16/04 RPC System - Interface Specification 85.4 kb 01-Nov-2001
G16/05 RPC System - RPI Remote Panel Interface 98.4 kb 01-Nov-2001
G16/06 RPC System - DPR Module (8 Relay switching) 319.4 kb 01-Feb-1997
G16/07 RPC System - SR04 Module (32 bit O/C Digital O/P) 185.6 kb 01-Aug-2002
G16/08 RPC System - FTC Floating Track Circuit Module (8 track circuits) 556.1 kb 01-May-1997
G16/12 RPC System - RTC Train Speed Controller 260.4 kb 01-Jan-1996
G16/13 RPC System - PMD1 Solenoid Point Motor Driver (see G16/26 for On-board DPDT relay module) 86.1 kb 01-Jan-0000
G16/14 RPC System - PMD2 Slow-action Point Motor Driver 152.0 kb 01-Jun-1999
G16/15 RPC System - PMS2 Slow-action Point Motor Slave 95.6 kb 01-Jun-1999
G16/16 RPC System - SD4 Multi-aspect Colour Light Signal Driver 105.5 kb 01-Jun-1999
G16/17 RPC System - QPR Quad pole relay board 80.5 kb 01-Jul-2007
G16/18 RPC System - RSA RS232/RS485 Adaptor 191.9 kb 01-Sep-1999
G16/19 RPC System - SRI4 32 bit shift register logic input module 96.6 kb 01-Feb-1999
G16/21 RPC System - Alternative Uses (non-computer applications) 109.8 kb 01-Jul-1998
G16/22 RPC System - Serial/Shift register techniques (A general description but with special reference to the RPC system) 158.7 kb 01-Feb-1999
G16/23 RPC System - PTP Point to Point data transfer 165.0 kb 01-Feb-2004
G16/24 RPC System - RSE Remote Stack Extension system - to extend any RPC module stack 248.5 kb 01-Nov-1999
G16/25 RPC System - RDD Remote Data Display 175.5 kb 01-Oct-1999
G16/26 RPC System - PMR1 Solenoid Point Motor/Relay driver with on board relay. 83.7 kb 01-Mar-2003
G16/27 RS232 - RS485 Buffer 90.9 kb 01-Feb-2001
G16/75 Implementing a RPC System on a Home Layout 493.4 kb 01-Apr-2005
G16/81 RPC Application on \'Horton\' 792.2 kb 01-Apr-2005
G16/xx RPC System - The Nottingham Exhibition report (RPC\'s first public outing) 48.6 kb 01-Jan-1996
SignallingTOP OF PAGE
S01/01 Wiring complex pointwork 68.9 kb 01-Dec-2004
S02/01 ENtrance EXit (NX) Route switching 38.3 kb 01-Jun-1995
S04/01 NMRA dc 2-rail track circuiting system (with additional notes) 20.6 kb 30-Nov--0001
S06/01 Signal Operation and Automatic restoration 30.2 kb 01-Jun-1998
S11/01 I.R.I.S. - Independant Remotely Interlocked Section 128.8 kb 01-Aug-1991
S12/01 Four Aspect Signals - Multiplex operation over 1 or 2 wires 53.8 kb 01-Feb-1995
S13/01 The ENtrance EXit (NX) Panel - Prototype information 23.2 kb 01-Jul-1996
S14/01 Simple Colour Lights signals for two sections (uses reed switch detection) 23.5 kb 01-Jul-1996
S15/01 A Noise Resistant Bistable - includes use for reed switch operated 2-aspect signal 16.2 kb 01-Jan-1998
S16/01 2-wire control for 4-aspect signals 20.0 kb 01-Apr-1999
S17/01 A Damped Motor for 2mm scale Semaphore Signals 33.2 kb 01-Apr-1999
S18/01 Electrical Interlocking of Points and Signals 45.7 kb 01-Feb-2001
S19/01 The SD2 Signal Driver 50.3 kb 01-Oct-2007
S19/02 Basic Principles of Using the SD2 Signal Driver Kit (DC or DCC) 99.5 kb 01-Oct-2007
SuperBlocTOP OF PAGE
T33/01 The SuperBloc Concept and the BC3 Controller 78.6 kb 01-Jun-2002
T33/02 Block Control Philosophy 94.9 kb 01-Oct-2002
T33/11 SuperBloc BC3 Technical Description and Schematics 135.0 kb 01-Jun-2003
T33/12 Testing a superBloc BC3 controller 38.9 kb 01-Jan-2008
T33/13 SuperBloc Power Supplies 77.1 kb 01-Jul-2003
T33/14 SuperBloc Control of Turnouts/Points/Switches 62.0 kb 01-Dec-2002
T33/15 How to create a Macroblock \'Cookbook\' for SuperBloc design. 143.9 kb 01-Apr-2003
T33/16 A Single Track End-to-End Layout for SuperBloc 85.7 kb 01-Jul-2003
T33/17 SuperBloc Control of a Fixed Twin Track Layout 75.3 kb 01-Jul-2003
T33/18 SuperBloc Controls for a Modular Layout 71.8 kb 01-Jul-2003
T33/19 A superBloc Starter Layout 65.3 kb 01-Jan-2008
T33/20 SuperBloc Control of Signals 65.5 kb 01-Dec-2002
T33/21 PD3 Dual Solenoid Point Motor Driver with SuperBloc Logic Options 166.8 kb 01-Dec-2006
T33/22 Using the SD2 signal driver with superBloc 65.3 kb 01-Dec-2007
T33/23 Simple Signal Drivers for superBloc 32.2 kb 01-Aug-2007
T33/24 PD3 Boost Converter for superBloc 97.9 kb 01-Mar-2010
T33/25 A low cost Optical Detector and trains longer than a block 126.9 kb 01-Mar-2010
T33/26 An automatic Point Lock for superBloc 75.6 kb 01-Mar-2010
T33/27 SuperBloc Hints and Tips 82.6 kb 01-Mar-2010
T33/28 Station Stop Timers for superBloc 80.3 kb 01-Mar-2010
TEST ModulesTOP OF PAGE
TEST-01 Using the Layout Control Bus (LCB) Experimenter’s Kit (490) 805.2 kb 01-May-2015
TractionTOP OF PAGE
T01/01 Some new ac motors and thoughts thereon 63.7 kb 01-Jun-1995
T02/01 A fixed height pulse controller 24.3 kb 01-Jul-1997
T03/01 MERG MILLION controller 16.4 kb 01-May-1995
T04/01 The Walshaw variant of the MERG MILLION controller 27.9 kb 30-Nov--0001
T05/01 Motor control 17.4 kb 01-Apr-1996
T06/01 Closed loop motor control 91.3 kb 01-Feb-1997
T07/01 CMOS in model railway electronics 100.8 kb 01-Dec-1996
T08/01 Traction supply (draft only) 26.9 kb 01-Jan-2007
T12/01 An integrated controller using the LM317 51.1 kb 01-Apr-1999
T14/01 Controlling dc permanent-magnet motors used in model locomotives 18.6 kb 01-May-2001
T15/01 A simple overload trip - theory 30.4 kb 01-Feb-1997
T15/02 A simple overload trip - construction 498.6 kb 16-Jun-1905
T16/01 A Linear controller with overload protection 32.5 kb 01-Feb-1997
T17/01 A single knob controller 46.2 kb 01-Feb-1997
T18/01 Wired and cordless controllers using joysticks 115.2 kb 01-Dec-1991
T19/01 A hybrid pulse-width modulated (PWM) controller 100.4 kb 01-Nov-1993
T20/01 Diesels with "real engines" using a free motor 39.6 kb 01-Jun-1999
T23/01 A Computer-compatible Pulse Controller 97.5 kb 01-Aug-1994
T24/01 DC Motor Control by Negative Resistance 64.7 kb 01-Oct-1996
T25/01 The Ultimate Track Circuit Detector ? 76.2 kb 01-Mar-1998
T26/01 Single Knob Walkaround Control 94.8 kb 01-Aug-1998
T27/01 A Pulsed Linear Controller 40.3 kb 01-Jan-2000
T27/02 A Timed-reset Current Trip 28.4 kb 01-Jan-2000
T28/01 Track-based Cab Control 162.3 kb 01-Apr-2000
T31/01 A Fixed Width Pulse Controller (FWP) 102.0 kb 01-Feb-2002
T32/01 Reversed Linked Section Control (RLSC) 177.1 kb 01-Apr-2002
Train DetectionTOP OF PAGE
A07/04 Hall effect switch as Train-on-Track Indicator 22.9 kb 01-Dec-1998
S03/01 MERG Train On Track Indicator (ToTI) (incorporating S10/1) 22.2 kb 01-Jan-0000
S07/01 Locomotive Isolated Detector 60.1 kb 01-May-1995
S08/01 Train Detection - report on meeting (talk and discussion) 16.9 kb 01-Oct-1983
S09/01 Transducers - or where is it? 45.0 kb 01-Mar-1985
T09/01 2-rail track circuits 48.5 kb 01-Aug-1994
T09/02 HYPOTRAC - a 2-rail circuit 113.7 kb 01-Jun-1994
T21/01 Train-on-track indicator by comparator 45.8 kb 01-Oct-1996
T21/02 Train-on-track indicator by comparator (Assembly & Test Instructions) 61.4 kb 01-Jul-1995
T21/04 Dual Power Supply Module 143.0 kb 01-Oct-2014
T21/05 Train-on-track indicator by comparator: version 3 218.3 kb 01-Mar-2007
T21/06 ToTI-2 – A 2 channel Train on Track Indicator by comparator: Version 4. 1,255.3 kb 01-Nov-2020
T22/01 Train-on-Track Indication using Reed or Hall Effect switches 124.2 kb 01-Feb-1995
T29/01 Train on track indication using a Flip Flop 15.8 kb 01-Jan-2001
T30/01 Yet another Train on track indication (YaToTi) 25.6 kb 01-Mar-2001
TD01/01 Dual Hector User manual 4,380.5 kb 01-Sep-2014
ZeroTOP OF PAGE
CC01/01 ZERO-1 Command link 84.0 kb 01-Feb-1998
CC01/02 ZERO-1 Slave controller unit - including modification for double heading 61.8 kb 01-Feb-1998
CC01/03 ZERO-1 Slave controller (operation & modifications) 58.8 kb 01-Jan-2001
CC01/05 ZERO-1 Display console & module (MicroMimic/Phase 3) 36.8 kb 01-Jan-2000
CC01/06 ZERO-1 Point accessory module amplifier 19.3 kb 01-Apr-1990
CC01/07 ZERO-1 MicroMimic console - battery & inspection 17.6 kb 01-Nov-1998
CC01/08 ZERO-1 Loco module - a quick look 32.0 kb 01-Dec-1998
CC01/09 ZERO-1 MicroMimic Display System (Mfrs. brochure plus comments) 637.5 kb 01-May-1995
CC01/10 ZERO-1 Loco module coding chart 22.0 kb 01-Jan-1999
CC01/12 ZERO-1 Master Controller Replacement Keyboard (Kit instructions) 25.0 kb 01-Sep-1998
CC01/14 ZERO-1 Accessory Module R956 (Technical description and schematic) PB003 48.0 kb 01-Oct-1998
CC01/15 ZERO-1 Slave Cable Buffer (Slave connections at over 2 metres) PB001 32.9 kb 01-Oct-1998
CC01/17 ZERO-1 Modification of AC locos for Zero-1 operation PB002 26.0 kb 01-May-1998
CC01/18 ZERO-1 Loco module current booster PB004 (NB. 1.17 and 1.18 will be supplied printed back to back for the single TB price). 25.1 kb 01-Jan-2000
CC01/20 ZERO-1 Stabilised Power Booster PB005 23.0 kb 01-Oct-1998
CC01/22 ZERO-1 Accessory Module Extender 22.5 kb 01-Oct-1998
CC01/23 Coding ZTC Loco Modules using ZERO-1 Controllers (Hornby and H&M) 54.5 kb 01-Feb-2000

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