Repairing an old Metal Detector

[Fisher77]

I have a metal detector I have had since I was a kid. I am trying to get it working again. It has a capacitor in it I need to replace. From what I have found on it, it is a .04uF. The code on it is 403. Can I replace this with a .047uF capacitor, or is there another value I can use? Thanks for any help.

 

[Gryd3]

I have a metal detector I have had since I was a kid. I am trying to get it working again. It has a capacitor in it I need to replace. From what I have found on it, it is a .04uF. The code on it is 403. Can I replace this with a .047uF capacitor, or is there another value I can use? Thanks for any help.

I'd say it's close enough to at least try... but can you give us some pictures or insight into what it's connected to?

 

[Fisher77]

I circled them in red.

 

[Gryd3]

For the one on the bottom I would most certainly say go for it.
For the one on the top, I need to sit down and stare at it more to see what it's change may be. It may end up changing the indicated waveform too much.

 

[Fisher77]

Thanks Gryd3. I appreciate the help.