First off, I'm not an electronic expert in any way!
I have a film camera from the early 1990's that has a weak shutter switch. It is a double action switch that has contacts that oxidise (not sure why, the camera forums say it is badly designed..., I wouldn't know!).
This causes the camera to malfunction on a regular basis. However, it is fairly easy to access the switch and to take it apart (very gently!!) and clean the contacts with cleaner and a microfibre cloth.
This allows the camera to function as normal for a while before it starts malfunctioning again.
Sadly, the switch is no longer available, nor is there a similar sized switch available on the market that could be used as replacement.
Now, the question.... Would it be possible, or any use, to coat the existing contacts with gold so that any oxidisation is still conductive. If this would work, how could it be done?
Alternatively, where could I go to get a modern double action switch mounted on a 10mm by 10mm pcb with added lugs to enable it to be soldered to the existing pcb contacts. The existing pcb is a bendy brown plastic, not a solid board. In effect creating a replacement switch using a modern tiny d/a switch on a pcb to make it the same size as the older, larger, dodgy switch.
If anyone out there fancies a crack at finding a solution there will be many, many grateful owners of these cameras!
Thanks for your time. My fingers are crossed and my breath is bated.....
I'm based in Northern Ireland but very often travelling around the UK.
David
I have a film camera from the early 1990's that has a weak shutter switch. It is a double action switch that has contacts that oxidise (not sure why, the camera forums say it is badly designed..., I wouldn't know!).
This causes the camera to malfunction on a regular basis. However, it is fairly easy to access the switch and to take it apart (very gently!!) and clean the contacts with cleaner and a microfibre cloth.
This allows the camera to function as normal for a while before it starts malfunctioning again.
Sadly, the switch is no longer available, nor is there a similar sized switch available on the market that could be used as replacement.
Now, the question.... Would it be possible, or any use, to coat the existing contacts with gold so that any oxidisation is still conductive. If this would work, how could it be done?
Alternatively, where could I go to get a modern double action switch mounted on a 10mm by 10mm pcb with added lugs to enable it to be soldered to the existing pcb contacts. The existing pcb is a bendy brown plastic, not a solid board. In effect creating a replacement switch using a modern tiny d/a switch on a pcb to make it the same size as the older, larger, dodgy switch.
If anyone out there fancies a crack at finding a solution there will be many, many grateful owners of these cameras!
Thanks for your time. My fingers are crossed and my breath is bated.....
I'm based in Northern Ireland but very often travelling around the UK.
David