Dr Ronald Stiffler SEC technology

[itsu]

Gyula,

i will tinker again this evening.

concerning the used led strip, i found the following website showing an example and put down some specs below:
https://www.beslist.nl/klussen/d0018768908/R7S_LED_Lamp_11W_Warm_Wit_135mm.html

# Replacement for 150W 240V halogene lamp
# 11W @ 90-260V AC
# Type LED Epistar 5050 SMD   

It has 3 strips (parallel??) and i use only 1 strip, meaning it can handle/supply about 11 / 3 = 3.6W (50W equivalent)
I estimate the brightness i had yesterday on about 1/3th of it being on the grid.



Nick,

concerning the L3 coil, i found this website/picture:
http://www.tuks.nl/Mirror/Dr_Stiffler/SEC18_1.htm.html

Comparing with the 1N4148 diodes (3.5mm long) i guestimate that the coil has the following dimensions:
former diameter: 20mm
former length:   50mm
nbr of turns:    70

But its like seychelles says, its not that critical.

Itsu

[gyulasun]

Gyula. I tested with 100K pot resistor but nothing ! maybe the circuit is fake by Gbluer ?

Hi Erfandl,
No, forget it, it is surely not fake.  Pay attention to all the comments GBluer made under his video and under Lidmotor's replication video.   Hint: possibility for choke coil resonance   and one of ways you can tune this oscillator is by adjusting the input supply voltage and watch peaks in brightness.  OF course, this is very component dependent.

What input voltage and power your LED board (you show for this circuit at the bottom of the previous page) is specified for? 

Lidmotor replication showed a 1 W LED probably a single LED and not an array and also GBLuer showed a 4 W LED and estimated the brightness of half of that by his eye.   I guess the LEDs Lidmotor used needs  3.5 -4 V input maximum and the LED GBluer used may also need less than say 12V (my rough estimation).   

Gyula

[erfandl]

Hi Erfandl,
No, forget it, it is surely not fake.  Pay attention to all the comments GBluer made under his video and under Lidmotor's replication video.   Hint: possibility for choke coil resonance   and one of ways you can tune this oscillator is by adjusting the input supply voltage and watch peaks in brightness.  OF course, this is very component dependent.

What input voltage and power your LED board (you show for this circuit at the bottom of the previous page) is specified for? 

Lidmotor replication showed a 1 W LED probably a single LED and not an array and also GBLuer showed a 4 W LED and estimated the brightness of half of that by his eye.   I guess the LEDs Lidmotor used needs  3.5 -4 V input maximum and the LED GBluer used may also need less than say 12V (my rough estimation).   

Gyula

thanks for reply. input source is 3.7 volt battery @ full charged level. now I using simple white led the brightness is good but it cannot be working with 1.5 volt ( like Gbuler circuit ) output voltage is 3 volt

[gyulasun]

I wonder whether your circuit now works as an oscillator  or the 3.7V battery drives the LED via the collector choke and via the series diode to the LED?   

[erfandl]

I wonder whether your circuit now works as an oscillator  or the 3.7V battery drives the LED via the collector choke and via the series diode to the LED?   

I wondered too :|