May this be identical to a BTMC phone? S.E. - UK Vintage Radio Repair and Restoration Discussion Forum

dagskarlsen · 24th Mar 2023, 8:12 am

Just got the parcel, it is probably equal to a BTMC version from before 1930, but I am not able to identify it so far.
It came with an odd Siemens W28-ish handset (not pictured here) The dial spring and spring-holder is "repaired" so it does not work, hopefully I may fix it. The hook-switch is missing the insulation part that shall activate the springs, still interesting.

Pretty close to BTMC 396A but still not equal.

Graham G3ZVT · 24th Mar 2023, 12:59 pm

I suppose the symmetrical orientation of the dial made it more difficult to pull the dial completely to the finger stop?

Cruisin Marine · 24th Mar 2023, 8:22 pm

That is a beautiful telephone!

dagskarlsen · 24th Mar 2023, 9:54 pm

Those dials was not made trough manyy years, not easy to service, and not to easy to operate. More compact than most later dials. But I got it working.. (But for how long?)

24th Mar 2023, 8:12 am	#1
dagskarlsen Heptode Join Date: Jan 2008 Location: Hakadal, Norway Posts: 633	May this be identical to a BTMC phone? S.E. Just got the parcel, it is probably equal to a BTMC version from before 1930, but I am not able to identify it so far. It came with an odd Siemens W28-ish handset (not pictured here) The dial spring and spring-holder is "repaired" so it does not work, hopefully I may fix it. The hook-switch is missing the insulation part that shall activate the springs, still interesting. Pretty close to BTMC 396A but still not equal. Attached Thumbnails Last edited by dagskarlsen; 24th Mar 2023 at 8:18 am. Reason: Adding tekst

24th Mar 2023, 12:59 pm	#2
Graham G3ZVT Dekatron Join Date: May 2010 Location: Greater Manchester, UK. Posts: 18,579	Re: May this be identical to a BTMC phone? S.E. I suppose the symmetrical orientation of the dial made it more difficult to pull the dial completely to the finger stop? __________________ -- Graham. G3ZVT

24th Mar 2023, 8:22 pm	#3
Cruisin Marine Heptode Join Date: Jul 2018 Location: Worthing, West Sussex, UK. Posts: 903	Re: May this be identical to a BTMC phone? S.E. That is a beautiful telephone! __________________ "Behind every crowd, there's a silver Moonshine"

24th Mar 2023, 9:54 pm	#4
dagskarlsen Heptode Join Date: Jan 2008 Location: Hakadal, Norway Posts: 633	Re: May this be identical to a BTMC phone? S.E. Those dials was not made trough manyy years, not easy to service, and not to easy to operate. More compact than most later dials. But I got it working.. (But for how long?)