Repairing push button switches - UK Vintage Radio Repair and Restoration Discussion Forum

telstar · 20th Jul 2008, 8:52 am

Hi. I have a Blaupunkt Virginia 2430 am/fm radio (1956) that has a button for am ferroceptor/external aerial. The button will not hold down in place when pressed, so the internal ferrite aerial is not in circuit. Anyone else experienced this problem ? The spring (visible from the underside of the switch bank) seems in reasonable condition.
Many thanks
Mike

chipp1968 · 29th Jul 2008, 8:45 am

I have no idea how thiese work , but presumably a catch must be prought into play by the spring ? maybe it needs lube

telstar · 29th Jul 2008, 7:40 pm

Hi. Many thanks for your reply. The button will not keep down once pressed, thats why I thought the spring might be faulty.
Regards
Mike

chipp1968 · 29th Jul 2008, 10:53 pm

its just possible that something needs lubrication as it may be jammed . the spring wont do the job if so . Its possible the spring is stretched

Mike Phelan · 30th Jul 2008, 7:54 am

Mike
If this is a "push on, push off" type of button, there will be some sort of catch to retain it in the "on" position; this is usually a small pivoted lever with a slot in it, and a hairpin spring to keep it against a peg on the sliding part of the switch.

Is such a thing visible?

20th Jul 2008, 8:52 am	#1
telstar Octode Join Date: Dec 2003 Location: Leeds, West Yorkshire, UK. Posts: 1,592	Repairing push button switches Hi. I have a Blaupunkt Virginia 2430 am/fm radio (1956) that has a button for am ferroceptor/external aerial. The button will not hold down in place when pressed, so the internal ferrite aerial is not in circuit. Anyone else experienced this problem ? The spring (visible from the underside of the switch bank) seems in reasonable condition. Many thanks Mike

29th Jul 2008, 8:45 am	#2
chipp1968 Rest in Peace Join Date: Jul 2006 Location: Somerset, UK. Posts: 2,356	Re: Repairing push button switches I have no idea how thiese work , but presumably a catch must be prought into play by the spring ? maybe it needs lube

29th Jul 2008, 7:40 pm	#3
telstar Octode Join Date: Dec 2003 Location: Leeds, West Yorkshire, UK. Posts: 1,592	Re: Repairing push button switches Hi. Many thanks for your reply. The button will not keep down once pressed, thats why I thought the spring might be faulty. Regards Mike

29th Jul 2008, 10:53 pm	#4
chipp1968 Rest in Peace Join Date: Jul 2006 Location: Somerset, UK. Posts: 2,356	Re: Repairing push button switches its just possible that something needs lubrication as it may be jammed . the spring wont do the job if so . Its possible the spring is stretched

30th Jul 2008, 7:54 am	#5
Mike Phelan Dekatron Join Date: Nov 2003 Location: Near Leeds, West Yorkshire, UK Posts: 4,609	Re: Repairing push button switches Mike If this is a "push on, push off" type of button, there will be some sort of catch to retain it in the "on" position; this is usually a small pivoted lever with a slot in it, and a hairpin spring to keep it against a peg on the sliding part of the switch. Is such a thing visible? __________________ Mike.