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FS  Walsdawg Arcade Audio Probes

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I have the parts to build one of these but I haven't put it together yet. I do still need to get the probes.

I was thinking a hook clip for the ground and a normal probe for the other lead would be ideal.
 
Frank_fjs said:
Straight forward enough.

@Mitsurugi-w, is there a specific size you want / need the PCB to be?

If sticking with the 9V battery, perhaps I'll use a PCB mount battery holder.

Not sure how to handle the probe. What's the preferred type of connector for it? Ideally perhaps something compatible with a pre-fabricated lead?
Click to expand...
You can get rid of the 9V battery and use two clips to take power from GROUND and +12V of the PCB under test.Some time ago I designed me too a PCB but didn't find time to send files to manufacturer.
 
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I'll use whatever the community finds they would like in the probe. I think the design of the last pcb I used is fine but I would use SMD components to make it a bit smaller. I like using the Banana plugs because it gives you options of the type of probe you want to use instead of having a fixed one. Both the 9v battery and the external power option can be built into the pcb. I also would add a connector or two so that assemble and disassembly can be done much easier. The previous version has everything soldered.
 
If you want the last design you used I'll need a schematic. Couldn't seem to find one.

I asked about the PCB dimensions as you mentioned you had an enclosure in mind.
 
Curious if anything ever came of this.
 
Some time ago I designed an audio probe based on the LM386 amplifier and other few parts, it works very well.
 
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