Jay-Jay, Inductance box

Jay-Jay, Inductance box 

 

Manufacturer:- Educational Measurements Ltd, Warsash, Southampton

Brand :- Jay-Jay Instruments

type:- L3

Description:- 3 x 10 position Inductance knobs (Inductance in Henrys)

x 10^-1 @ 30mA

x 10^-2 @ 50mA

x 10^-3 @ 70mA

still in use for Calibration and design of equipment

Source:- My own collection
Purchased  from Wythall Rally late 1990's