Equipment Category – Date


Dimming and Multiplex - Strand


View in Alphabetical Order
Liquid Dimmers  (1915 - 1945)
Glazed earthenware jars, complete with fixed & moving lead cones.
Early Metallic Dimmers  (1925?)
Type A or Type B
Early Resistance Dimmers  (1925?)
Wall-type or portable
Arc Resistances  (1945)
Radial Switch type, standard type or parallel type
Plate Resistance Dimmers  (1945)
Flickerless
Slate Type Slider Resistance Dimmers  (1945)
Sunset Resistance Dimmers  (1945)
Type A, Type A1, Type B, Type D, Wall Mounting Type
Tubular Resistance Dimmers  (1945)
Type T1, T2, T4
Automatic Dimmers  (1945-1969)
Type PTU or CYU
Transformer Dimmers  (1945? - ?)
Thyratron  (1952 - 1966)

Valve Dimming

SD/WH  (1959 April)
The first 220/240V SCR dimmer
JTM  (1965 - 1975)
Inexpensive variable-load dimmers housed in compact 20-channel or 10-channel racks.
Portable Touring Equipment  (1968?)
PTM  (1968?)
Plug-in dimmer modules and associated racks
Mini T Dimmer Rack  (1970)
6 way dimmer pack. 50 - 1000W per channel. 
Mini 2 Dimmer Rack  (1971)
STM  (1975)
Successor to the JTM
Perma 12  (1977)
Wall-mounting 12 thyristor dimmer rack.
Portable High Power Dimmer Pack  (1977)
Portable pack with 3 or 10 x 5kW maximum capacity Thyristor dimmers. 
MCM (Modular Crate Mounted)  (1978)
30 x 20A or 60 x 10A Thyristor Dimmers
CD80 Dimmer Banks and Modules  (1980)
Tempus  (1980)
Portable dimmer packs
Permus  (1982 - ?)
Developed from Tempus dimmers
Act 2  (1983 - ?)
2 channel lighting control / dimmer
Act 6  (1984 - 1994)
6 channel dimmer rack (6 x 10A dimmer)
PIP  (1986)
Plug-In Professional Dimmer Modules
DC90 Dimmer Racks and Modules  (1987)
Act 3  (1987 - 1994)
3 channel dimmer rack (3 x 20A dimmer)
CD80 1.2kW Pack  (1989?)
24 channel compact dimmer
24 channel demultiplexer  (1990 - ?)
Control of 24 analogue dimmers.
EC90  (1990 - ?)
Modular digital dimmer with reporter
CD80 Digital Pack  (1992)
LD90  (1993 - ?)
Digital Dimming
System 6  (1994)
Compact wall-mounted dimmer cabinet: 6 x 15A or 6 x 20A dimmers
Act 3+  (1994 - ?)
Act 6+  (1994 - ?)
6 channel dimmer rack (6 x 10A dimmer)
Andi DX  (1996)
Modular Dimmer System
Dig 6  (1998?)
6 channel digital dimmer
SLD96  (2001?)
Dimmer rack
3 Pack  (2006)
3 way dimmer pack
6 Pack  (2006)
4U high, 19 inch digital dimmer pack.
EC21  (2006)
Installation dimmer rack
ProPack  (2008)
High density high power dimming in a 2U rack mount package
S21 IGBT Dimmer Box  (2008)
1210  (2011)
Twelve 10A dimmer or relay switched channels in a 4U high 19 inch rack module.
RelayRack  (2014)
12 channel 10 Amp Relay Panel

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