WE 706B receiver

[wds]

Has anyone heard of a 706B receiver?  I've seen plenty of 706A's, but not this model.

[poplar1]

706B receiver as originally equipped had an HA2 receiver unit instead of the HA1 found in 706A.

635B transmitter (bulldog) had an F2 transmitter unit instead of F1.

[poplar1]

706-Type Receivers:
706A  Receiver----HA1 Receiver Unit----impedance approx. 116 Ohms at 800 cycles-
706B-----"---------HA2------"------------------"--------"-----  275----"---"---"----"---
706C-----"---------HA4------"------------------"--------"----- 2,000---"---"----"---"----


716-Type Recievers used with Head Band:
716A Receiver= 11A Receiver Holder + HA1 Receiver Unit
716B-----"----= 11A Receiver Holder +HA2-----"-------"--
716C-----"----= 11A Receiver Holder +HA4-----"--------"--Train dispatching way stations and             subscribers' stations

716D----------= 716A Receiver + 11A Head Band
716E----------= 716B Receiver +  11A Head Band
716F----------= 11A Receiver Holder, HA3 Receiver Unit and No. 11A Head Band

"The HA1, HA2, HA3 and HA4 Receiver Units should not be used in circuits permitting d-c to
flow through the receiver."

Reference: Western Electric Telephone and Apparatus Catalog #11, 1950.

[wds]

This one has a HA2.  I didn't realize there were so many 706 variations.  Thanks!

[poplar1]

I probably should not have confused the issue by adding the 716s, since these are the "watchcase" style, but did so because of the HA3 receiver unit which isn't shown as an option with the 706-type.

[Russ62]

Hi,  This receiver, along with the companion 635B transmitter, was used on the later 417 magneto wall phones and desk stands used with 400 type magneto ringer boxes to provide higher quality transmission on the later,  usually anti sidetone mag. equipment. Probably also used to update older sets.            Russell