TR90 with monitoring speaker in room 12 in 1961
The EMI TR/90 is a quarter inch mono tape recorder running at 7½ and 15 inches per second,, one of the two main recording machines which Delia used at the Radiophonic Workshop, the other being the similar BTR2.
Room 12 had an EMI TR90 tape machine, onto which was bolted the Tempophon, a device with rotating heads that could change the pitch of a sound without modifying its tempo.
- ↑ DD155129: List of BBC Radiophonic Workshop facilities in the editing room in 1963.
- ↑ Delia in the Radiophonic Ladies interview.
- ↑ Ray White in The Workshop in 1976.