Johnson Rahbek electrostatic telephone

Johnson Rahbek electrostatic telephone with motor and controlling potentiometer

Details

Category:
Telecommunications
Object Number:
1926-286
type:
telephone
credit:
Swinton, Alan Archibald Campbell

Parts

Johnson Rahbek Electrostatic Telephone

Johnson Rahbek Electrostatic Telephone

Telephone from, Johnson Rahbek electrostatic telephone with motor and controlling potentiometer

Object Number:
1926-286/1
type:
telephone
Controlling Potentiometer

Controlling Potentiometer

Potentiometer from, Johnson Rahbek electrostatic telephone with motor and controlling potentiometer

Object Number:
1926-286/2
type:
potentiometer