Screw for GPO Tele 121 coil. - UK Vintage Radio Repair and Restoration Discussion Forum

Graham1 · 9th Dec 2016, 1:44 pm

Help with the size and type of screws to hold the coil and capacitor in a GPO telephone 11. Can you plese help thanks

Station X · 9th Dec 2016, 1:59 pm

As far as I know all screws (apart from wood screws) in GPO Telephones had BA threads. They did have a habit of using odd sizes ie 1,3, 5, 7 BA though, which are more difficult to obtain.

Graham1 · 9th Dec 2016, 2:41 pm

Many thanks for your reply but the screws that hold the coil and capacitor are a wood screw I think?

9th Dec 2016, 1:44 pm	#1
Graham1 Retired Dormant Member Join Date: Jan 2014 Location: Kenilworth, Warwickshire, UK. Posts: 13	Screw for GPO Tele 121 coil. Help with the size and type of screws to hold the coil and capacitor in a GPO telephone 11. Can you plese help thanks

9th Dec 2016, 1:59 pm	#2
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Screw for GPO Tele 121 coil. As far as I know all screws (apart from wood screws) in GPO Telephones had BA threads. They did have a habit of using odd sizes ie 1,3, 5, 7 BA though, which are more difficult to obtain. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

9th Dec 2016, 2:41 pm	#3
Graham1 Retired Dormant Member Join Date: Jan 2014 Location: Kenilworth, Warwickshire, UK. Posts: 13	Re: Screw for GPO Tele 121 coil. Many thanks for your reply but the screws that hold the coil and capacitor are a wood screw I think?