13 August 2022 - 19 August 2022
Table of Contents
- 1. MIT OCW
- 2. Emergency Crystal Radio
- 3. Mill Controller #2
- 4. Alum Rock Data Center
- 5. OLPC
- 6. Virtual Orchestra
- 7. gat
- 8. abby
- 9. marble computing
- 10. More project ideas
- 11. David Davies
- 12. Peter Kim
1. MIT OCW
1.1. 18.02 - Multiple Variable Calculus
1.1.1. Session 78, PS10
2. Emergency Crystal Radio
2.1. Fixed switch by removing broken wafer (1 of 2)
3. Mill Controller #2
3.1. Repurpose 'boss' hard drive
3.2. Need to investigate new HW/SW for eventual replacements
3.2.1. Old crap ain't gonna last forever
3.2.2. Buildroot/Linux 5.15 PREEMPT + latency tools
First pass done - boots on real hardware
4. Alum Rock Data Center
4.1. Using CentOS 7 for now - good until 2024?
4.2. need to check alma, rocky, others? for suitability
5. OLPC
5.1. Needs ML1120 coin batteries to fix "invalid system date".
6. Virtual Orchestra
6.1. sfz file tests
6.1.1. need tooling to edit sample files
6.2. increasingly skeptical whether quality results are possible
7. gat
7.1. spectrogram done - matches 'octave' output
8. abby
8.1. installed three wire chassis fan - too noisy
8.2. need to get 4 wire chassis fan
9. marble computing
9.1. Purely mechanical linkage likely too complex for most circuits
9.1.1. Difficult to generalize
9.1.2. Complexity grows with product of bits and stages
9.1.3. Not sure how to 'AND' inputs efficiently
9.1.4. Tofolli -> CNOT expansion increases complexity
9.2. Electromechanical linkage likely workable
9.2.1. Easily generalizable
9.2.2. 'Rocker' staging/sequencing allows infinite stages
9.2.3. Complexity grows with bits only
9.2.4. RC servos for CNOT gate control relatively inexpensive
10. More project ideas
10.1. Zuse Z3 simulation in Verilog
Good excuse for floating point ALU design.
10.2. GMPForth ports to SIMH
10.2.1. SIMH maybe some targets (vax)
10.2.2. MAME looks interesting for microprocessor system emulations
How to support erzatz systems?
10.2.3. Ports to classic figFORTH targets
10.3. GMPASM assembler
May be useful for handbuilt and rare systems (DMX1000?).