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Greinacher Circuit Voltage Doublers

Greinacher Circuit Voltage Doublers

I used a 3.3 µF, 370VAC capacitor in a previous Villard Circuit voltage doubler, but I used 67 nF capacitors in a Greinacher Circuit voltage doubler.

That’s a huge capacitance difference. Did I do the Greinacher Circuit correctly?

Towards a Philosophy of Shells

Towards a Philosophy of Shells

Most modern operating systems include a “shell” of one form or another, sometimes text-based, sometimes graphical. The first shell was written by Louis Pouzin. It dates to 1963 or 1964. He even wrote a paper about it.

Another Harry Millner Quote

Another Harry Millner Quote

Another quote attributed to Harry Millner that appears in a few places:

There are many paths to the top of the mountain but only one view

Mars Project History

Mars Project History

The Mars Project 1948 to 1956
A. A. Jackson
Fifty Third Symposium of the International Academy of Astronautics,
October 21 – 25, 2019, Washington, DC , United States
Paper IAC-19-E4.2.03

Realtek Level 2 Protocol

Realtek Level 2 Protocol

I bought a 8-port Netgear GS308E switch. I plugged it in, and it worked, but I noticed the LEDs on the RJ-11 ethernet socket flickered regularly.