The Jennings version of the Leslie and Vox Gyrotone rotating speaker units, complete with an on/off footswitch and cover. For an overview of history and design, see this page.

Its power handling was 20 watts, the total impedance of the two Celestion drivers - probably either T7442s or T7721s - being 8 ohms.

Designed primarily for use in the studio - for guitar. Note the mention of Hank Marvin in the extract from Gary Hurst's notes on the Jennings stand at the "British Musical Instrument Industries" Trade Fair at the Russell Hotel, London, August 1969.

Extract from the report of the BMI show

The unit was certainly still in production in July 1972 - cost £83.00 (mentioned in a Beat Instrumental section on "Amplifiers") - and was probably available thereafter, though it does not appear in the pricelist of December of that year.