Microtracer
Designer: David Gammon
Model: Microtracer
Country of Origin: Carlow, Ireland
Date Of manufacture: 1977 – 1981
Versions: 2
Note: Only compatible with the transcriber turntable
Vestigal
Designer: David Gammon
Model: Vestigal Arm
Country of Origin: Carlow, Ireland
Date Of manufacture: 1973 – 1977
Versions: 2
Note: Fitted to the skeleton turntable as standard
Saturn
Designer: David Gammon
Model: Saturn Arm
Country of Origin: England
Date Of manufacture: 1968 – 1973
Versions: 2
Note: Fitted to the Saturn turntable as standard
Fluid
Designer: David Gammon
Model: Fluid
Country of Origin: England
Date Of manufacture: 1963 – 1973
Versions: 3
Note: Originally fitted to reference and hydraulic reference turntables