Messages

1

Electronics / Re: Coax communication frequency

« on: January 04, 2019, 10:34:22 PM »

Instructions for an inexpensive passive commutator tested with the Miniscope can be found: https://optogeneticsandneuralengineeringcore.gitlab.io/ONECoreSite/projects/SlickPassiveElectricalCommutator/

2

Electronics / Re: How to attach commutator?

« on: January 04, 2019, 10:33:10 PM »

Instructions for an inexpensive passive commutator tested with the Miniscope can be found: https://optogeneticsandneuralengineeringcore.gitlab.io/ONECoreSite/projects/SlickPassiveElectricalCommutator/

3

Behavior / Re: Swivel/tether for hands-off recording

« on: January 04, 2019, 10:32:10 PM »

Instructions for an inexpensive passive commutator tested with the Miniscope can be found: https://optogeneticsandneuralengineeringcore.gitlab.io/ONECoreSite/projects/SlickPassiveElectricalCommutator/

4

System Assembly Troubleshooting / Re: coax wire

« on: October 02, 2017, 04:37:03 PM »

I received the wire, but couldn't think of a way to reliably strip it, let alone solder it. 42 AWG is tiny. The tool I linked to cannot go smaller, and I don't know of any other hand tools. There are machines that strip to that size, but cursory glance was $5k/machine.

You *may* be able to burn off the insulation with fire. May be able to use a razor, too, but good luck.

And after it is stripped, the heat from soldering will probably damage the insulation, so even after all that, you could short it soldering it on.

I consider myself pretty compliant with these micro electronics, but just don't see the need for this level of headache that has too much chance for failure.

5

System Assembly Troubleshooting / Re: coax wire

« on: September 08, 2017, 04:33:18 PM »

I too tested a bunch of wires and independently found this wire works well. Very light, cheap, and still solder-able.

Also, the ST450 is a handy tool for stripping the wire.

https://www.digikey.com/product-detail/en/jonard-tools/ST-450/K545-ND/1990301