EP#47: Missing Audio

EP#47: Missing Audio

Podcast Notes

  • Continuing on the Jeep Bluetooth radio hack, Parker designed the audio voltage bias switcher board. It will adjust the Pk-Pk voltage and DC offset of the Bluetooth adapter to what the radio expects. Ordered it through MacroFab. See Figure 1 and 2.
  • Parker also started designing an amplifier for Spooky Pinball. Based on the TDA7387 which is a 4 x 41 W quad bridge car radio amplifier. Designing it to be as inexpensive but as LOUD as possible. Currently down to $15.91 an assembled board in QTY 500. Need a beefy heatsink and powersupply to handle it.
  • Stephen has been working on his Resistor of Death (name to be decided). By combining resistors in series and parallel, Stephen will be able to make a large high tolerance resistor. The best tolerance resistor on mouser is 0.005%. Can we get better than that with 1% resistors? N = 1/0.005 = 200 resistors FOR EACH PARALLEL/SERIES COMBO Total resistors = 40,000.
  • Sorry RFO section got cut off due to a problem in the software recording. :(

Special thanks to whixr over at Tymkrs for the intro and outro!

Episoder(448)

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EP#412: Great Classes, Odd Teachers, Chickens, Snakes

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EP#411: Entropy rules everything with James Lewis

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EP#409: You Down with SDV

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EP#408: Pete Staples from Blue Clover on the PLT, Device Testing, more!

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EP#407: Holy Static Hazard Batman!

EP#407: Holy Static Hazard Batman!

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EP#406: Dr. Duncan Haldane from JITX on Automating Circuit Design

EP#406: Dr. Duncan Haldane from JITX on Automating Circuit Design

Parker and Stephen welcome JITX CEO and Co-founder, Dr. Duncan Haldane, to the show to discuss his company, which is a code-powered PCB design platform that aims to revolutionize circuit board design ...

28 Nov 20231h 7min

EP#405: Does ChatGPT want a cold beer?

EP#405: Does ChatGPT want a cold beer?

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