|
Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
|
Thread Tools |
10th Jun 2020, 2:40 pm | #1 |
Heptode
Join Date: Oct 2006
Location: Leeds, West Yorkshire, UK.
Posts: 598
|
706L telephone - extra gravity switch
This 1965 model arrived today. As well as having a recall button, there is another gravity switch on the opposite side to the usual one. However, it only has two wires - grey and blue - and these are wired in parallel with the grey and blue wires off the recall button. What might this switch be for please ? This switch is 'on' when the handset is on-hook. Thankyou.
|
10th Jun 2020, 4:37 pm | #2 |
Heptode
Join Date: Aug 2009
Location: Worthing, Sussex, UK.
Posts: 662
|
Re: 706L telephone - extra gravity switch
Possible for use with a pmbx 2 which use 4 wires
|
10th Jun 2020, 5:33 pm | #3 |
Heptode
Join Date: Oct 2006
Location: Leeds, West Yorkshire, UK.
Posts: 598
|
Re: 706L telephone - extra gravity switch
Thanks John. I'll probably end up converting the phone for regular use, in which case I'll leave the switch in but park the wires on spare terminals.
|
10th Jun 2020, 6:42 pm | #4 |
Dekatron
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,130
|
Re: 706L telephone - extra gravity switch
I recently wired up a Plan 105 (external) which required an additional gravity switch on each extension. In my case I used 746s, but maybe such a 706 would serve a similar function, except that I recall it specifying change-over contacts on the extra gravity switch.
__________________
Mending is better than Ending (cf Brave New World by Aldous Huxley) |
10th Jun 2020, 7:40 pm | #6 |
Heptode
Join Date: Oct 2006
Location: Leeds, West Yorkshire, UK.
Posts: 598
|
Re: 706L telephone - extra gravity switch
It's definitely just a simple on/off switch with just the two wires.
I'll leave the recall button as it is. Will I really need to disconnect the extra switch or can I leave it as is ? Either way I shall leave it fitted inside. It's just going to be a plain phone, no PMBXs etc. |
10th Jun 2020, 11:08 pm | #7 |
Heptode
Join Date: Oct 2006
Location: Leeds, West Yorkshire, UK.
Posts: 598
|
Re: 706L telephone - extra gravity switch
PS. This telephone is a product of Phoenix Telephone and Electrical works - it has PXA printed on the base.
|
11th Jun 2020, 10:03 am | #8 | |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
|
Re: 706L telephone - extra gravity switch
Quote:
|
|
11th Jun 2020, 11:08 am | #9 |
Heptode
Join Date: Oct 2006
Location: Leeds, West Yorkshire, UK.
Posts: 598
|
Re: 706L telephone - extra gravity switch
Thankyou, Pellseinydd. I'll leave it alone. The phone works fine with all the additional switches anyway so if it ain't broke...
It will be nice to have a black functioning 706 in my arsenal. The Ericsson magneto 706 I got back in April looks smart but sadly isn't much use to me. |