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Simple Light Sensitivity Metronome Using #Transistors

Simple Light Sensitivity Metronome Using #Transistors

flyback-transformer-tester-circuit-using-2SC828

flyback-transformer-tester-circuit-using-2SC828

Hartley Oscillator Circuit

Hartley Oscillator Circuit

App note: Improve flicker performance of direct AC driven LED fixtures with self valley fill «  Dangerous Prototypes

App note: Improve flicker performance of direct AC driven LED fixtures with self valley fill « Dangerous Prototypes

Updated Software Development Cartoon, a classic inspired in a marketing cartoon.

Updated Software Development Cartoon, a classic inspired in a marketing cartoon.

The Smallest Drugs Here is the updated version of the "smallest drugs" collection that I did the other day. Here are the criteria I used: the molecular weight cutoff was set, arbitrarily, at aspirin's 180. I excluded the inhaled anaesthetics, only allowing things that are oils or solids in their form of use. As a small-molecule organic chemist, I only allowed organic compounds - lithium and so on are for another category

The Smallest Drugs Here is the updated version of the "smallest drugs" collection that I did the other day. Here are the criteria I used: the molecular weight cutoff was set, arbitrarily, at aspirin's 180. I excluded the inhaled anaesthetics, only allowing things that are oils or solids in their form of use. As a small-molecule organic chemist, I only allowed organic compounds - lithium and so on are for another category

Regulator to charge a 12v battery.   Use a 16v panel (25-28 cells). Consider is the wattage of the panel. It controls how fast battery charges.  A 12v 1.2A/h batt has 14w-hours of energy. A 6w panel (16v-18v) gives 18w-hours (in bright sunlight) in 3 hrs. The battery charge in 3 hrs.   Adjust pot so relay drops out at 13.7v Charger turns ON when the v drops to about 12.5v. The 100R Dummy LOAD will absorb 3.25 watts and that is the maximum wattage the panel will produce with 100R load.

Regulator to charge a 12v battery. Use a 16v panel (25-28 cells). Consider is the wattage of the panel. It controls how fast battery charges. A 12v 1.2A/h batt has 14w-hours of energy. A 6w panel (16v-18v) gives 18w-hours (in bright sunlight) in 3 hrs. The battery charge in 3 hrs. Adjust pot so relay drops out at 13.7v Charger turns ON when the v drops to about 12.5v. The 100R Dummy LOAD will absorb 3.25 watts and that is the maximum wattage the panel will produce with 100R load.

Zener Voltage Circuit

Why You Should Be Using a Linear Voltage Regulator

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