Another reverse engineer with some math
Added 2021-06-01 02:12:14 +0000 UTCI've not got one of these lamps here yet, so I've done some computations based on the layout, voltage they were tested at and power that they dissipated.
https://www.youtube.com/watch?v=xaeZBjty3Ws
Comments
Combine the two to get multiplication.
John Harrison
2021-06-03 15:30:37 +0000 UTCMathSSSSSSSSSSSS
Phil in the kitchen
2021-06-02 13:26:50 +0000 UTCYeah it won't be far off. The LED voltage is going to be more like a square pulse train than a FWR signal. I might model it for funz. Yeah: TINA says 5.8mA rms. I used a 62V zener instead of the LEDs.
Mike Page
2021-06-01 17:52:49 +0000 UTCAaarrrghhh math(s).... Almost as bad as biology!
Dr Andy Hill
2021-06-01 17:07:34 +0000 UTCI've always seen them as circles, with the top half being either E or P, and the bottom half being divided again into quarters, with I, R or I, V.
Circuitmike
2021-06-01 16:54:52 +0000 UTCGee I haven’t seen those Ohm’s Law triangles for about FIFTY YEARS! I must be getting old.
Rocco Rizzo
2021-06-01 14:41:47 +0000 UTCVery cool! I still enjoy learning about these things it seems like someone has a new take on these things.
Michael Thompson
2021-06-01 12:51:16 +0000 UTCI have really liked learning electronics by seeing how led bulbs have changed over the decade. Thanks for these videos. They show a great real world use of electrical design.
Alex Taylor
2021-06-01 03:33:09 +0000 UTCPossibly, or the ballistic response is letting them hover at peak sinewave voltage.
Big Clive
2021-06-01 02:52:27 +0000 UTCOK that is strange. I got a couple of old DC digital panel meters that are about 30 years old. They are rated up to 500Vdc and used 120 or 240vac to operate. I used a "FULL!!!!! BRIDGE!!!! RECTIFIER!!!" and got 320Vdc I wonder if the input has a capacitor?
Charles Bruckner
2021-06-01 02:50:28 +0000 UTCOnly when smoothed. Without a capacitor it can still be treated as an RMS value.
Big Clive
2021-06-01 02:41:29 +0000 UTCIsn't rectified mains voltage higher?
Charles Bruckner
2021-06-01 02:29:50 +0000 UTC
