Model Electronic Railway Group

Leading Model Railway Electronics since 1967

Over 2,500 members worldwide

Technical Bulletins

MERG produces Technical Bulletins covering a wide variety of topics - a full list of the currently available TBs is provided by selecting the area of interest from the menu on the left. Download facilities are available to Members in the Members Area

A - AncillaryTOP OF PAGE
A01/01 A high frequency oscillator (68.9 kb) 2 July-1994
A01/02 Construction & use of HF Oscillator to A1/1 (50.0 kb) 2 July-1994
A02/01 A simple dirt buster (19.2 kb) 2 February-2001
A03/01 Point motor capacitor discharge power packs (20.8 kb) 2 August-2000
A04/01 Relco track cleaner (44.5 kb) 1
A05/01 Sustained Tail Lamps (21.9 kb) 1 October-1986
A06/01 Point motors: types, operation & indication (98.4 kb) 1 February-1999
A06/02 Comparative tests of three Motor-driven Point Motors (18.4 kb) 2 February-2001
A06/03 'Tortoise' Slow Motion Switch Machine (Point Motor) - Data Sheet (134.4 kb) 2 December-2004
A07/01 Reed switches (41.1 kb) 1 January-1995
A07/02 Hall effect switches (39.7 kb) 1 January-1995
A07/03 Magnets - use with Reed and Hall Effect Switches (39.2 kb) 1 January-1995
A07/04 Hall effect switch as Train-on-Track Indicator (22.9 kb) 2 December-1998
A08/01 Fast recharge capacitor discharge unit (20.5 kb) 2 June-1995
A09/01 Capacitor discharge units using transistors (Issue 2) (47.3 kb) 2 June-1995
A10/01 Light Emitting Diodes (LEDs) (36.7 kb) 1 January-1998
A11/01 Twinkling gas lamps (303.2 kb) 3 September-1996
A11/03 Flaming Hot Air Balloons, another use for twinklers (88.1 kb) 1 February-2002
A12/01 Motorised turntable control unit(see also A17/1) (23.5 kb) 2 September-1993
A13/01 Resistance soldering - a unit design (46.4 kb) 2 September-1983
A14/01 A Measured Pulse capacitor discharge unit (91.5 kb) 1 August-1994
A15/01 Meters - in model railway service (55.2 kb) 1 November-1999
A15/02 Meters - interpreting the readings (58.1 kb) 1
A15/05 Connecting Meters to a Pentroller (58.2 kb) 1 August-2000
A16/01 The 'Heiniken' track cleaner (20.6 kb) 2 July-1995
A16/02 The 'Flying banana' motored track cleaner (42.7 kb) 1 September-2001
A17/01 Turntable Operation using SCRs (see also A12/1) (43.4 kb) 1 July-1995
A17/02 Turntable indexing using an Infrared photoreflective sensor (515.7 kb) 1 December-2003
A18/01 Welding Arc Simulator (using CMOS) (25.6 kb) 2 December-1995
A19/01 High Frequency Train Lighting (and Train-on-Track Indication) (33.1 kb) 1 July-1996
A19/02 A High Quality Sine Wave generator (41.8 kb) 1 October-1999
A20/01 The MERG Simple Shuttle (Demonstration track) (47.3 kb) 2 August-1997
A21/01 Low Cost Current Display using a LED bargraph (36.7 kb) 1 November-1996
A23/01 An Overload protected Controller Output stage (21.7 kb) 1 September-1996
A24/01 Road Traffic Lights sequencer (27.0 kb) 1 October-1996
A25/01 A Touch Switch for Control panels (47.1 kb) 1 November-1996
A26/01 Servo Motor Driver (applied to loco water crane swing in & out!) (29.6 kb) 1 December-1996
A27/01 Digital Clock Modules - 'make time go faster' (21.5 kb) 2 May-1997
A28/01 In-Plug Power Supplies and their modification (26.1 kb) 2 September-1997
A29/01 Single Wire Point Motor Switching Unit (54.5 kb) 2 January-1998
A30/01 Matrix Operation of Point Motors (48.7 kb) 1 February-1998
A31/01 Matrix Control for Point Motors (20.1 kb) 1 May-1998
A32/01 A Fast Analogue Clock (23.6 kb) 2 August-2000
A32/02 An Analogue Scale Time Clock (77.3 kb) 1 August-2000
A33/01 Section Isolating Switch with Isolation and Occupation Indication (33.0 kb) 2 August-1999
A33/02 Pulse generator for Isolated/occupied indication (24.3 kb) 1 August-1999
A34/01 Development of a Dual Point Motor (Solenoid type)Driver (50.8 kb) 1 August-1999
A35/01 Instrumentation for a 7 1/4" Gauge Battery Loco (24.8 kb) 1 May-2001
A36/01 The Faller Road System - Introduction (28.0 kb) 1 March-2003
A36/02 The Faller Road System - Route Selection and Parking (64.4 kb) 1 October-2004
A38/01 Programmable Servo Driver type "Servo 4" (66.6 kb) 07-07 July-2007
A38/02 Setting Box for ‘Servo 4’ Driver Board (115.9 kb) 08-08 August-2008
A39/01 A Simple RFID Reader Module (117.0 kb) 07-10 October-2007
A39/02 Putting RFID to Work 1 - Basic Principles and Installation (318.6 kb) 2 January-2012
A40/01 Stepper Motor Turntable Controller (288.3 kb) 10-03 March-2010
ATC - Automatic Train ControlTOP OF PAGE
ATC01/01 The ATC Shuttle Control System – An Overview (2,228.3 kb) 1 January-2013
ATC02/01 The ATC Shuffle Mode (130.6 kb) 1 January-2013
ATC03/01 Testing and Setting Up a Standard ATC System (2,100.6 kb) 1 January-2013
ATC04/01 Putting the ATC to Work 1 – Planning Your Configuration (498.8 kb) 1 February-2013
ATC05/01 Putting the ATC to Work 2 – Creating PIC Sequences (293.1 kb) 1 February-2013
ATC06/01 Putting the ATC to Work 3 – Using the Excel Configuration Spreadsheet (440.7 kb) 1 March-2013
B - ComponentsTOP OF PAGE
B01/01 Preferred Values for electronic components (31.7 kb) 2
B02/01 Resistor colour coding (43.3 kb) 07-12 December-2007
B04/01 A Summary of Op Amps (24.2 kb) 1 July-1996
CBUS-00 CBUS - A universal layout control system. (262.2 kb) 08-12 December-2008
CBUS-02 CANSOL – 12Vdc CBUS Module for driving Solenoid Point Motors (685.9 kb) 1 May-2015
CBUS-10 Planning for CBUS on your Layout (340.7 kb) 2 May-2015
CBUS-13 CANPAN - 12Vdc CBUS Module for driving Control Panels (1,148.6 kb) 01 December-2015
CC - Comp./Command ControlTOP OF PAGE
CC01/01 ZERO-1 Command link (84.0 kb) 2 February-1998
CC01/02 ZERO-1 Slave controller unit - including modification for double heading (61.8 kb) 2 February-1998
CC01/03 ZERO-1 Slave controller (operation & modifications) (58.8 kb) 2 January-2001
CC01/05 ZERO-1 Display console & module (MicroMimic/Phase 3) (36.8 kb) 2 January-2000
CC01/06 ZERO-1 Point accessory module amplifier (19.3 kb) 2 April-1990
CC01/07 ZERO-1 MicroMimic console - battery & inspection (17.6 kb) 2 November-1998
CC01/08 ZERO-1 Loco module - a quick look (32.0 kb) 2 December-1998
CC01/09 ZERO-1 MicroMimic Display System (Mfrs. brochure plus comments) (38.4 kb) 1 May-1995
CC01/10 ZERO-1 Loco module coding chart (22.0 kb) 1 January-1999
CC01/12 ZERO-1 Master Controller Replacement Keyboard (Kit instructions) (25.0 kb) 2 September-1998
CC01/14 ZERO-1 Accessory Module R956 (Technical description and schematic) PB003 (48.0 kb) 1 October-1998
CC01/15 ZERO-1 Slave Cable Buffer (Slave connections at over 2 metres) PB001 (32.9 kb) 1 October-1998
CC01/17 ZERO-1 Modification of AC locos for Zero-1 operation PB002 (26.0 kb) 1 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) 1 January-2000
CC01/20 ZERO-1 Stabilised Power Booster PB005 (23.0 kb) 1 October-1998
CC01/22 ZERO-1 Accessory Module Extender (22.5 kb) 1 October-1998
CC01/23 Coding ZTC Loco Modules using ZERO-1 Controllers (Hornby and H&M) (54.5 kb) 1 February-2000
CC02/01 The Interlocker System (Computer Control of Model Railways) (32.3 kb) 2 July-1998
CC02/02 The Interlocker System - the Hardware (Issue 3) (42.7 kb) 3 July-1998
CC02/06 The Signalman System (Peter J. Day M508) (67.9 kb) 2 April-2001
CC02/11 Computer Control in the Vale (Pendon Museum) (17.8 kb) 1 May-1995
CC03/01 The I2C Interfacing system and its relevance to Model Railways (28.4 kb) 1 April-1999
CC04/01 Command Control Route Indication (40.5 kb) 1 August-1999
CC04/02 Command Control Train on Track Indication using MERG TOTIs and Power supply (30.0 kb) 1 August-1999
CC05/01 The Airfix Multiple Train Control System (181.4 kb) 1 August-2000
CC21/01 Route Setting using a Microcontroller (20.5 kb) 1 April-1996
CC22/01 Computer-controlled Fiddle Yard project (43.2 kb) 1 July-1996
CC23/01 What you need to know to use the PIC Microprocessor (18.1 kb) 1 August-1997
CC23/02 Programming a PIC Microprocessor (34.5 kb) 1 August-1997
CC24/01 Computers and Model Railways - an Overview (28.9 kb) 1 October-1997
DCC01/01 Getting into DCC - a review of several commercial systems (20.2 kb) 3 January-1999
DCC02/01 Introduction to NMRA Digital Command Control (28.5 kb) 3 January-2001
DCC02/02 NMRA Decoder Configuration Variables (CVs) for ZTC / Lenz / Digitrax (21.7 kb) 1 January-2001
DCC03/01 Building a DCC decoder for N gauge (32.6 kb) 1 March-1998
DCC04/02 DCC Loco Conversions (54.7 kb) 1 January-2000
DCC11/03 MERG DCC handset HS2 (Rev B): Technical description and use (50.6 kb) 1 October-2003
DCC11/11 MERG DCC Accessory System: Overview, & Testing Assembled Kits (74.6 kb) 2 April-2006
DCC11/12 The MERG DCC Accessory Encoder (Version 2B) (148.6 kb) 07-03 April-2006
DCC11/13 The MERG DCC Pulsed Output Accessory Decoder (Version 2B) (178.3 kb) 07-03 October-2003
DCC11/14 The MERG DCC Accessory Decoder Version 3B - Steady State outputs. (152.4 kb) 07-03 July-2006
DCC11/19 Further Uses for the MERG DCC Steady State Accessory Decoder (110.5 kb) 09-04 April-2009
DCC20-01 The MERG DCC User's Guide (779.1 kb) 4 July-2013
DCC21/01 The MERG 2nd Generation DCC System (1,226.0 kb) 3 April-2014
ETEC-01 USB to Parallel Bus Interface (MERG-USB) (322.0 kb) 1 May-2015
G - GeneralTOP OF PAGE
G01/01 Transistors (44.3 kb) 2 March-2001
G02/01 Relays - updated (21.1 kb) 2 April-2001
G02/03 Latching Relays (and use for vehicle directional lighting) (22.7 kb) 1 May-2001
G03/01 Digital logic (162.7 kb) 2 February-2010
G05/01 Microprocessors and model railways - updated (34.5 kb) 2 April-2001
G06/01 Computer interfacing (Parts 1 & 2) (88.8 kb) 2 February-2001
G07/01 Multiplexing (22.5 kb) 2 March-2001
G08/01 A practical introduction to logic circuits (108.1 kb) 1 August-1994
G09/01 A loco controller using the Sinclair Spectrum with postscript (69.8 kb) 2 January-2001
G10/01 Sound and model railways (34.3 kb) 2 January-1987
G12/01 Diode - FET logic - a new family ? (261.4 kb) 1 January-1989
G13/01 A novel approach to layout wiring diagrams (32.2 kb) 2 May-2000
G14/01 The on-board controller (208.6 kb) 1 February-1992
G15/01 Loco controller using the Centronics interface (75.9 kb) 1 March-1992
G16/00 Remote Panel Control(RPC) System - Progress Report No. 1 (40.1 kb) 1 August-1995
G16/01 Remote Panel Control(RPC) System - Progress Report No. 2 (44.3 kb) 1 December-1995
G16/02 RPC System - Index to bulletins G16/3 - G16/24 (29.0 kb) 5 February-1999
G16/03 RPC System - System Overview (214.5 kb) 1 March-1996
G16/04 RPC System - Interface Specification (85.4 kb) 2 November-2001
G16/05 RPC System - RPI Remote Panel Interface (98.4 kb) 3 November-2001
G16/06 RPC System - DPR Module (8 Relay switching) (319.4 kb) 1 February-1997
G16/07 RPC System - SR04 Module (32 bit O/C Digital O/P) (185.6 kb) 2 August-2002
G16/08 RPC System - FTC Floating Track Circuit Module (8 track circuits) (556.1 kb) 1 May-1997
G16/12 RPC System - RTC Train Speed Controller (260.4 kb) 1 January-1996
G16/13 RPC System - PMD1 Solenoid Point Motor Driver (see G16/26 for On-board DPDT relay module) (86.1 kb) 2
G16/14 RPC System - PMD2 Slow-action Point Motor Driver (152.0 kb) 1 June-1999
G16/15 RPC System - PMS2 Slow-action Point Motor Slave (95.6 kb) 1 June-1999
G16/16 RPC System - SD4 Multi-aspect Colour Light Signal Driver (105.5 kb) 1 June-1999
G16/17 RPC System - QPR Quad pole relay board (80.5 kb) 1 July-2007
G16/18 RPC System - RSA RS232/RS485 Adaptor (191.9 kb) 1 September-1999
G16/19 RPC System - SRI4 32 bit shift register logic input module (96.6 kb) 1 February-1999
G16/21 RPC System - Alternative Uses (non-computer applications) (109.8 kb) 1 July-1998
G16/22 RPC System - Serial/Shift register techniques (A general description but with special reference to the RPC system) (158.7 kb) 1 February-1999
G16/23 RPC System - PTP Point to Point data transfer (165.0 kb) 2 February-2004
G16/24 RPC System - RSE Remote Stack Extension system - to extend any RPC module stack (248.5 kb) 1 November-1999
G16/25 RPC System - RDD Remote Data Display (175.5 kb) 1 October-1999
G16/26 RPC System - PMR1 Solenoid Point Motor/Relay driver with on board relay. (83.7 kb) 2 March-2003
G16/27 RS232 - RS485 Buffer (90.9 kb) 1 February-2001
G16/51 A Computer-controlled Throttle unit (192.4 kb) 1 September-2000
G16/55 An introduction to Tcc (Train control centre) software (384.1 kb) 2 October-2005
G16/56 Writing scripts for TCC - A tutorial (346.4 kb) 1 July-2005
G16/71 Layout Wiring: a radically new approach (78.4 kb) 1 September-2000
G16/72 Layout wiring Part 2: Assembling PtP and RPC kits: Installation and testing (54.6 kb) 1 February-2001
G16/75 Implementing a RPC System on a Home Layout (493.4 kb) 1 April-2005
G16/81 RPC Application on 'Horton' (792.2 kb) 1 April-2005
G16/85 Model Railway Computer Control Centre (MRCCC): Overview (211.6 kb) 1 July-2005
G16/86 Model Railway Computer Control Centre (MRCCC): User Guide (266.3 kb) 1 July-2005
G16/87 Computer Assisted Cab Control (CACC) (243.1 kb) 1 March-2006
G16/xx RPC System - The Nottingham Exhibition report (RPC's first public outing) (48.6 kb) 1 January-1996
G18/01 CARLOS unveiled - Your Control Panel on your PC Screen (159.8 kb) 1 November-1999
G19/01 Notes on the use of Memory Wire (36.8 kb) 2 April-1997
G19/02 Memory Wire for Points Actuation - comparison of 'One Way' and 'Reversing' wire (45.8 kb) 2 October-1997
G20/01 A simple voltage indicator (33.7 kb) 1 August-1998
G22/01 A Memory wire Turnout Operating Unit - MWTOU (79.1 kb) 1 November-1998
G23/01 Constant current driver for Memory wire (22.7 kb) 1 February-1999
G23/02 Adjustable drive circuit for Memory wire (18.7 kb) 1 December-2000
G24/01 Analogue Controllers for a G gauge Garden Railway (85.1 kb) 1 November-1999
G24/02 Train servo amplifier Testing (as used for G24/1) (26.6 kb) 1 December-1999
G25/01 Using the 555 timer (104.8 kb) 1 January-2000
G26/01 A Moving Message Simulator (42.7 kb) 1 February-2001
G27/01 Solid State Overload Protectors (73.5 kb) 1 June-2000
G28/01 Diode Controlled Slow and Stop sections (73.1 kb) 1 August-2000
G30/01 Lighten your layout with LEDs (60.0 kb) 1 September-2000
G32/01 CANACC8 - CBUS module for driving LEDs, lights, relays etc. (162.9 kb) 09-11 November-2009
G32/02 CANACC4 - CBUS module for driving solenoid point motors. (138.5 kb) 08-01 January-2008
G32/03 CANACC5 - CBUS module for motorised point drivers etc. (105.9 kb) 08-01 January-2008
G32/04 CANACE3 - CBUS module for Control Panels (100.5 kb) 08-01 January-2008
G32/05 CAN-RS - An interface module between CBUS and Serial RS-232 (220.1 kb) 08-08 August-2008
G32/06 CANACE8C - CBUS 8 input combination module (161.2 kb) 09-11 November-2009
G32/07 CANLED - CBUS module for driving 64 LEDs (107.5 kb) 08-01 January-2008
G32/08 CANSERVO8 CBUS module for driving R/C Servos (50.7 kb) 08-12 December-2008
G32/11 Using the CBUS Experimenter’s Kit, Kit 90 (147.4 kb) 1 August-2012
LC - Layout CablingTOP OF PAGE
LC01/01 Guidance for Cabling Model Railways (202.8 kb) 2 December-2006
LC02/01 Point to Point-Lite (PTP-Lite) (735.2 kb) 01 August-2014
LC02/02 Putting PTP-Lite to Work - External Interfacing (798.1 kb) 01 August-2014
LC02/03 Putting PTP-Lite to Work - System Installation (512.8 kb) 02 October-2015
LC02/04 PTP-Lite – USB and Serial Interface Backplanes (682.5 kb) 1 October-2015
LC02/05 Putting PTP-Lite to Work – RFID Data Transport (445.6 kb) 1 October-2015
P - PracticalTOP OF PAGE
P01/01 Practical Guide to Crimping and Insulation Displacement Connectors (IDC) (38.7 kb) 1 April-2003
P02/01 Guidance for Building a Typical MERG Electronic Kit (347.8 kb) 08-07 July-2008
R - ReferencesTOP OF PAGE
R05/01 Bibliography:'Electrical and Electronics' Series, NMRA Bulletin (US) (32.8 kb) 2
R09/01 Model Railway Electronics - Index to Friberg books 1, 3 & 4. (63.1 kb) 1 February-2007
R10/01 Book Index- A Practical Introduction to Surface Mount Devices (33.3 kb) 1 January-2003
S - SignallingTOP OF PAGE
S01/01 Wiring complex pointwork (68.9 kb) 2 December-2004
S02/01 ENtrance EXit (NX) Route switching (38.3 kb) 1 June-1995
S03/01 MERG Train On Track Indicator (ToTI) (incorporating S10/1) (22.2 kb) 2
S04/01 NMRA dc 2-rail track circuiting system (with additional notes) (20.6 kb) 2
S06/01 Signal Operation and Automatic restoration (30.2 kb) 2 June-1998
S07/01 Locomotive Isolated Detector (60.1 kb) 2 May-1995
S08/01 Train Detection - report on meeting (talk and discussion) (16.9 kb) 2 October-1983
S09/01 Transducers - or where is it? (45.0 kb) 2 March-1985
S11/01 I.R.I.S. - Independant Remotely Interlocked Section (128.8 kb) 1 August-1991
S12/01 Four Aspect Signals - Multiplex operation over 1 or 2 wires (53.8 kb) 1 February-1995
S13/01 The ENtrance EXit (NX) Panel - Prototype information (23.2 kb) 1 July-1996
S14/01 Simple Colour Lights signals for two sections (uses reed switch detection) (23.5 kb) 1 July-1996
S15/01 A Noise Resistant Bistable - includes use for reed switch operated 2-aspect signal (16.2 kb) 1 January-1998
S16/01 2-wire control for 4-aspect signals (20.0 kb) 1 April-1999
S17/01 A Damped Motor for 2mm scale Semaphore Signals (33.2 kb) 1 April-1999
S18/01 Electrical Interlocking of Points and Signals (45.7 kb) 1 February-2001
S19/01 The SD2 Signal Driver (50.3 kb) 07-10 October-2007
S19/02 Basic Principles of Using the SD2 Signal Driver Kit (DC or DCC) (99.5 kb) 07-10 October-2007
T - TractionTOP OF PAGE
T01/01 Some new ac motors and thoughts thereon (63.7 kb) 1 June-1995
T02/01 A fixed height pulse controller (24.3 kb) 2 July-1997
T03/01 MERG MILLION controller (16.4 kb) 2 May-1995
T04/01 The Walshaw variant of the MERG MILLION controller (27.9 kb) 2
T05/01 Motor control (17.4 kb) 2 April-1996
T06/01 Closed loop motor control (91.3 kb) 2 February-1997
T07/01 CMOS in model railway electronics (100.8 kb) 2 December-1996
T08/01 Traction supply (draft only) (26.9 kb) 2 January-2007
T09/01 2-rail track circuits (48.5 kb) 2 August-1994
T09/02 HYPOTRAC - a 2-rail circuit (113.7 kb) 2 June-1905
T12/01 An integrated controller using the LM317 (51.1 kb) 2 April-1999
T14/01 Controlling dc permanent-magnet motors used in model locomotives (18.6 kb) 2 May-2001
T15/01 A simple overload trip - theory (30.4 kb) 3 February-1997
T15/02 A simple overload trip - construction (498.6 kb) 1 June-1905
T16/01 A Linear controller with overload protection (32.5 kb) 2 February-1997
T17/01 A single knob controller (46.2 kb) 2 February-1997
T18/01 Wired and cordless controllers using joysticks (115.2 kb) 1 December-1991
T19/01 A hybrid pulse-width modulated (PWM) controller (100.4 kb) 2 November-1993
T20/01 Diesels with "real engines" using a free motor (39.6 kb) 2 June-1999
T21/01 Train-on-track indicator by comparator (45.8 kb) 3 October-1996
T21/02 Train-on-track indicator by comparator (Assembly & Test Instructions) (61.4 kb) 2 July-1995
T21/04 Dual Power Supply Module (143.0 kb) 09_14 October-2014
T21/05 Train-on-track indicator by comparator: version 3 (218.3 kb) 2 March-2007
T22/01 Train-on-Track Indication using Reed or Hall Effect switches (124.2 kb) 2 February-1995
T23/01 A Computer-compatible Pulse Controller (97.5 kb) 1 August-1994
T24/01 DC Motor Control by Negative Resistance (64.7 kb) 1 October-1996
T25/01 The Ultimate Track Circuit Detector ? (76.2 kb) 1 March-1998
T26/01 Single Knob Walkaround Control (94.8 kb) 1 August-1998
T27/01 A Pulsed Linear Controller (40.3 kb) 1 January-2000
T27/02 A Timed-reset Current Trip (28.4 kb) 1 January-2000
T28/01 Track-based Cab Control (162.3 kb) 1 April-2000
T29/01 Train on track indication using a Flip Flop (15.8 kb) 1 January-2001
T30/01 Yet another Train on track indication (YaToTi) (25.6 kb) 2 March-2001
T31/01 A Fixed Width Pulse Controller (FWP) (102.0 kb) 1 February-2002
T32/01 Reversed Linked Section Control (RLSC) (128.6 kb) 2 April-2002
T33/01 The SuperBloc Concept and the BC3 Controller (78.6 kb) 1 June-2002
T33/02 Block Control Philosophy (94.9 kb) 1 October-2002
T33/11 SuperBloc BC3 Technical Description and Schematics (135.0 kb) 2 June-2003
T33/12 Testing a superBloc BC3 controller (38.9 kb) 08-01 January-2008
T33/13 SuperBloc Power Supplies (77.1 kb) 2 July-2003
T33/14 SuperBloc Control of Turnouts/Points/Switches (62.0 kb) 1 December-2002
T33/15 How to create a Macroblock 'Cookbook' for SuperBloc design. (143.9 kb) 1 April-2003
T33/16 A Single Track End-to-End Layout for SuperBloc (85.7 kb) 1 July-2003
T33/17 SuperBloc Control of a Fixed Twin Track Layout (75.3 kb) 1 July-2003
T33/18 SuperBloc Controls for a Modular Layout (71.8 kb) 2 July-2003
T33/19 A superBloc Starter Layout (65.3 kb) 08-01 January-2008
T33/20 SuperBloc Control of Signals (65.5 kb) 1 December-2002
T33/21 PD3 Dual Solenoid Point Motor Driver with SuperBloc Logic Options (166.8 kb) 1 December-2006
T33/22 Using the SD2 signal driver with superBloc (65.3 kb) 07-12 December-2007
T33/23 Simple Signal Drivers for superBloc (32.2 kb) 07-08 August-2007
T33/24 PD3 Boost Converter for superBloc (97.9 kb) 10-03 March-2010
T33/25 A low cost Optical Detector and trains longer than a block (126.9 kb) 10-03 March-2010
T33/26 An automatic Point Lock for superBloc (75.6 kb) 26 March-2010
T33/27 SuperBloc Hints and Tips (82.6 kb) 27 March-2010
T33/28 Station Stop Timers for superBloc (80.3 kb) 28 March-2010
TD - Train DetectionTOP OF PAGE
TD01/01 Dual Hector User manual (4,380.5 kb) 01 September-2014
TEST-01 Using the Layout Control Bus (LCB) Experimenter’s Kit (490) (805.2 kb) 2 May-2015
Z - Zoological (Humorous)TOP OF PAGE
Z90/01 The First Law of Engineering (121.7 kb) 1 March-2013
Z91/01 Real Virtual Trains? (37.1 kb) 1 December-2004
Z92/01 My Generation, and other words of wisdom (27.9 kb) 1 December-2003
Z93/01 New Words, Blondes and QA Inspectors (40.7 kb) 1 December-2002
Z94/01 The Laws and Questions of Electronics and Model Railways (17.9 kb) 1 December-2001
Z95/01 The Australian Thesaurus of Computer Technology (77.8 kb) 1 December-2000
Z96/01 Cows and Government (47.9 kb) 1 December-1999
Z97/01 HSE Health and Safety Executive (51.9 kb) 1 December-1998
Z98/01 Administratium (14.0 kb) 1 December-1996
Z99/01 How to catch an elephant (15.0 kb) 1 December-1995

Conditions of use

  • 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.
  • The use or misuse for the sale, design, supply, process, installation, delivery, test, repair, servicing, and alteration of the designs, instructions, computer code, photographs, circuits, and any other information that appear on this web site is entirely at the risk of the user or visitor to the web site. The information is made available in good faith without warranty of any kind strictly on the basis that no liability will attach to the Model Electronic Railway Group (MERG), its officers and members.