# Ep 241: Circuit Bending, Resistor Filing, the Butterfly Keyboard, and the Badge Reveal

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2023-10-20
- Length: 1h 03m
- Episode: 241
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve
- Listen: https://hackaday.libsyn.com/ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reveal

## Summary

Hackaday editors Elliot Williams and Tom Nardi discuss a variety of hardware hacks, including circuit bending with a Philips SA1099 sound chip and a technique for determining the value of burnt through-hole resistors by filing them. They highlight a comprehensive restoration of the IBM ThinkPad 701C 'Butterfly' by Project Butterfly, which provides open-source documentation and new parts, and review the Air Gradient project's lessons on overseas injection molding. The episode concludes with the reveal of the 2023 Hackaday Supercon badge, a Vectorscope featuring a Pico, an oscilloscope, and a function generator.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=1) Introduction: Supercon Badge and Ticket Updates
- [6:18](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=378) Resistor Filing: Repairing Burnt Components and Trimming Values
- [15:35](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=935) IBM ThinkPad 701C Butterfly Restoration by Project Butterfly
- [19:32](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=1172) Circuit Bending: Glitching a Philips SA1099 Sound Chip
- [26:05](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=1565) Air Gradient Injection Molding Lessons and Consultants
- [31:33](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=1893) Budget Self-Driving Car Neural Network Training
- [34:44](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=2084) Solar Camera: Raspberry Pi Compute Module and Custom Sensors
- [39:49](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=2389) Quick Hacks: Mic Pre-amps, AI Mirrors, and Linux on Arduino
- [46:48](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=2808) USBC for Hackers: Building a USB-C Power Supply
- [52:10](https://hardwarepodcasts.com/podcast/hackaday-podcast/2023-10-20-ep-241-circuit-bending-resistor-filing-the-butterfly-keyboard-and-the-badge-reve#t=3130) Hackaday Supercon 2023 Badge Reveal: The Vectorscope

## Topics

- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Analog & power electronics](https://hardwarepodcasts.com/topic/analog-and-power-electronics)

## Most relevant to

makers and hobbyists

## Mentioned

- Hackaday (company)
- IBM (company)
- ThinkPad 701C (product)
- Philips SA1099 (chip)
- Air Gradient (company)
- Raspberry Pi (product)
- Arduino (product)
- ESP32 (chip)
- Hackaday Supercon (product)
- Vectorscope (product)
- Pico (chip)

## Related episodes from other shows

- [033 - All Over the Place](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-04-27-033-all-over-the-place) (Unnamed Reverse Engineering Podcast)
- [An Interview with Ken Shirriff](https://hardwarepodcasts.com/podcast/the-amp-hour/2017-09-25-an-interview-with-ken-shirriff) (The Amp Hour)
- [317: What Do You Mean by Disintegrated?](https://hardwarepodcasts.com/podcast/embedded-fm/2020-01-17-317-what-do-you-mean-by-disintegrated) (Embedded.fm)
- [494: All Tech Is Wearable](https://hardwarepodcasts.com/podcast/embedded-fm/2025-02-07-494-all-tech-is-wearable) (Embedded.fm)
- [062 - Keymap Rain Dance](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2022-12-30-062-keymap-rain-dance) (Unnamed Reverse Engineering Podcast)

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