S-C CO Part

[Babybearjs]

came across this on Ebay. its described as a "Howler" assembly. what was this originally for? did it have more to it then is shown? was it part of a switchboard or something? is it worth bidding on or just another piece of junk.....

[poplar1]

I believe this was used by wire chief or testboard in Stromberg-Carlson X-Y central office. Placing Howler Tone on a line, in order to get subscriber to replace the receiver on hook, was only one of its functions.

[Babybearjs]

Interesting.... does anyone have any pics of what it was suppose to look like in service??

[rdelius]

I used a similar test set when working at an XY office when "routining " switches when traffic was light to find slow or hanging switches