AC 550 & AC 570
Magneto table telephones
These telephones can be supplied with two cranks at an additional cost.
Two dry cells RK 210 are required. A suitable battery case is RK 2300.
By means of brackets DL 502 these telephones may be used as wall sets.
Taken from the L. M. Ericsson Telephones and Signalling Material Catalogue No. 188 (1934)
Last revised: September 30, 2019