DIY LED stroboscope and transistor speed

[@andymouse]

" Gonna start foaming " awesome. Merry Christmas John....cheers.

[@TrevorsBench]

Merry Christmas John, enjoy the cookies & chocolate

[@1pcfred]

Fascinating stuff John. Merry Christmas.

[@karllangeveld6449]

Nice experiment John, you could use it to investigate the movement of a speaker. Enjoy those Oreo cookies.

[@robsperry4902]

Love your humor 😅

[@JaenEngineering]

It seems like you're pushing up against the Miller capacitance. To overcome it you could try a cascode configuration.

[@djtransnazgrz]

In old switch mode supplies, they used a small electrolytic across the base resistor to speed up switching. You also have to remember that driving a bjt into saturation slows it down significantly.

[@therealjammit]

A speed up capacitor across the base resistor would help. A schottky diode connecting the collector to base would prevent the transistor from saturating.

[@danhorton6182]

Was transistor speed discussed? Ft?

[@djtransnazgrz]

Asynchronous motor will never reach synchronous speed because slip is needed to generate rotor's magnetic field.

[@1pcfred]

The slip is your torque. If the fields caught up the motor wouldn't spin. The phase angle of the difference generates torque though. The pull. A 4 pole "1740" RPM motor really runs at 1725 RPM. The lost RPM is the slip. Or something like that I'm sure.

[@ralfstocker7742]

Sacramento is about to have a blackout.

[@aaax9410]

I have the same feeltek it's fine lol

[@1pcfred]

Yours is missing some E's.

[@andymouse]

John's been using his for years...That's good enough for me ! I would get one but got to many as is !