UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Telephony and Telecomms

Notices

Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment

Closed Thread
 
Thread Tools
Old 25th Jun 2017, 11:23 am   #1
SeanStevens
Octode
 
SeanStevens's Avatar
 
Join Date: Sep 2009
Location: Bath, Somerset, UK.
Posts: 1,033
Default Bell Set No 20 X2 - What exactly did they do?

Hi, I have two Bell Set 20's here:

What / how were they utilised?

Were they just an additional ringer?

Oh and there is a little phone without a dial - would that have been used in conjunction withe the bell set?

Thanks

SEAN
Attached Thumbnails
Click image for larger version

Name:	DSCF1095.jpg
Views:	149
Size:	124.3 KB
ID:	145054   Click image for larger version

Name:	DSCF1097.jpg
Views:	125
Size:	117.8 KB
ID:	145055   Click image for larger version

Name:	DSCF1098.jpg
Views:	127
Size:	99.9 KB
ID:	145056  
__________________
There are only 10 types of people, those who understand the binary system, and those who don't.

Last edited by SeanStevens; 25th Jun 2017 at 11:27 am. Reason: typo
SeanStevens is offline  
Old 25th Jun 2017, 12:49 pm   #2
Pellseinydd
Heptode
 
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
Default Re: Bell Set No 20 X2 - What exactly did they do?

They were like a mini switchboard which could have one or two extensions. Used mainly as a 'manager/secretary' set up with the secretary having the 'main phone connected to the Bellset 20 and the 'boss' as the extension. The generator was used to ring the extension/s. Note how the two extensions were individually called by means of a pressbutton being pressed whilst turning the generator at the main phone to call. The two extension Plan 5 was only available between phones within the same building. The extension on a Plan 7 could be the other side of the town!

They were known as Extension Plans 5 (for two extensions) and a Plan 7 for a single extension. See attached photos of GPO 'N' diagrams for the arrangements.

Note that the earlier version of the Bellset that preceded the BS 20 only had a three position switch.

The extension/s could be fitted with a dial to dial out when switched through to the exchange line. The 'little telephone without a dial' isn't one that would have been used as an extension. A standard issue GPO phone as per the relevant 'N' diagram would have been used.
Attached Thumbnails
Click image for larger version

Name:	IMAG0868.jpg
Views:	95
Size:	48.6 KB
ID:	145060   Click image for larger version

Name:	IMAG0867.jpg
Views:	94
Size:	47.6 KB
ID:	145061   Click image for larger version

Name:	IMAG0865.jpg
Views:	100
Size:	69.3 KB
ID:	145062  

Last edited by Pellseinydd; 25th Jun 2017 at 12:55 pm.
Pellseinydd is offline  
Old 25th Jun 2017, 8:09 pm   #3
SeanStevens
Octode
 
SeanStevens's Avatar
 
Join Date: Sep 2009
Location: Bath, Somerset, UK.
Posts: 1,033
Default Re: Bell Set No 20 X2 - What exactly did they do?

Many thanks - a perfect explanation



SEAN
__________________
There are only 10 types of people, those who understand the binary system, and those who don't.
SeanStevens is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 8:22 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.