SRFI 26 defines (cut cons (+ a 1) <>) as (lambda (x2) (cons (+ a 1) x2)), which is pretty nice syntactic sugar.
the studio was on fire when they recorded the song?
DRAM #hardware #reverse-engineering by Ken #Shirriff, for MOSTek’s revolutionary 128×128 DRAM chip
Ruediger Mohr’s #hardware design for a 3-channel PWM generator using a opamp triangle-wave oscillator to feed three comparators. The triangle-wave opamp has its non-inverting output tied to a 20kΩ pot between 5V and ground, with a positive-feedback 220kΩ resistor, and its inverting input tied to both ground and Vcc through 0.01μF caps (“makes it more linear, compensates out cap leakage, it made quite a difference in my first circuit, so I think my caps had been leaking like hell”). I suspect he might have been using a 22kΩ positive-feedback resistor instead, because he said he was getting 3 or 4 volts of swing.
my simulation of Ruediger Mohr’s #hardware design for a triangle-wave generator <https://tinyurl.com/2bmecwcj>
Ruediger Mohr’s #hardware design for PWM generation with a #555. #RueMohr
The #etymology of Spanish “éxito” is just Latin exītus, exit.
Ruediger Mohr’s #hardware design for a 1-bit ADC using very few parts, just a 74LS244 for Schmitt triggering, some other 7400 chip, and an LM343 op-amp. #RueMohr
