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Circuit Break - A MacroFab Podcast
Trailer
Bonus
Episode 74
Season 1
EP#74: Reverse Biasing Opamps
- Parker
- Been learning Python and OpenCV
- OpenCV is an open source computer vision library
- PyImageSearch
- Setup PyCharm
- Using Requests to use and get information from the MacroFab API
- Built a 3D printed chassis for holding a 5MP USB camera
- Taking pictures of PCBs and removing lens distortion
- RPI3 CM PCB done
- Will be testing over the weekend
- 6 Pack of beer riding on this board!
- Board does power up correctly.
- COMPIOT board Opamp blew up :(
- Symbol on Schematic unlabeled for the power inputs of the opamp
- Been learning Python and OpenCV
- Stephen
- Still Making the three synth modules (two envelops and one filter)
- Waiting on the CA3146 transistor IC
- This is an obsolete part
- Stephen wants to use it for legacy reasons
- Making some power supplies for tube mics (the same one that we made for JOSH).
- Have to figure out how to make a 6.3V or 12.6V high current rail along with a 200V to 300V low current rail.
- Stephen is going to use transformers that I have at my shop.
- One drops 120VAC to 10VAC and the other raises the 10VAC up to 230VAC
- The 10VAC rectified can potentially give 12.6VDC. If not I can drop it to 6.3VDC.
- The 230VAC rectified can become 325VDC.
- Still Making the three synth modules (two envelops and one filter)
- Pick Of the Week (POW)
- 130-in-1 Electronic Playground from SparkFun
- With the closure of Radio Shack where would you buy one of these intro kits?
- $50 Is cheaper then Radio Shack even!
- 130-in-1 Electronic Playground from SparkFun
- Rapid Fire Opinion (RFO)
- Fail of the Week: Museum Buttons - Hack A Day
- Industrial buttons are not really kid proof
- Wood Lichtenberg - Instructables
- 12kV 35mA - Neon Sign Transformer PSU
- Baking soda in water as the conductor for electricity
- Marinate wood in baking soda water mix
- 342,857.1428 ohms to pull the entire PSU load
- Qualcomm fingerprint sensor enables virtual home button - Electronics Weekly
- Qualcomm has developed an ultrasonic fingerprint sensor which can operate under the glass of a mobile device avoiding the need for a mechanical home button. It also detects heartbeat and blood flow.
- 800 µm of cover glass and up to 650 µm of aluminum
- Fail of the Week: Museum Buttons - Hack A Day