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Messages - Det_pleasant

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1
Solid state Tesla coils / Re: A little help with first Tesla Coil
« on: September 01, 2018, 05:25:39 PM »
What else could be a good replacement for the UCC chips
Preferably in TC or MIC as those are available near me

2
Solid state Tesla coils / Re: A little help with first Tesla Coil
« on: September 01, 2018, 01:30:27 PM »
Hey
Thanks for all the advice
I managed to get my hands on a cathode ray tube 10MHz oscilloscope and an LCR meter.
After probing the GDT, I managed to see that there was large signal distortion and I rewound the transformer.
I have a 240 V city line

After seeing how the circuit I had fail in multiple places, I decided to try the SSTC 5 by steve ward.
It is a simpler circuit. the only problem is that I can't seem to find UCC chips in my city
Will the MIC 4420 and the TC 429 be suitable replacements ?

3
Solid state Tesla coils / Re: A little help with first Tesla Coil
« on: July 29, 2018, 10:21:11 PM »
That's is one of the problems I face
I do not have an Oscilloscope or an LCR meter to check wave forms and inductance
Which is one of the reasons why i choose the SSTC 2 as the feed back mechanism would ensure the correct frequency was generated
Input Voltage is 220 Volts AC which is stepped down and rectified as needed
So 12-13 volts DC into the gate driver and 5 volts into the oscillator
 

Thank you for the advice on the posting system, I'll be sure to follow it from next time

4
Solid state Tesla coils / Re: A little help with first Tesla Coil
« on: July 29, 2018, 09:43:12 PM »
Sorry for the double post
These are the pictures
Sorry for the messy circuitry
I'm kinda new to all this
Thank you
I will check out those links

5
Solid state Tesla coils / A little help with first Tesla Coil
« on: July 29, 2018, 08:29:23 PM »
Hey
I'm new to this forum and just wanted a little help with my first Tesla Coil.
I have tried to employ Steve Ward's SSTC 2 half bridge Circuit
I have a primary with 7 turns of 1.6 mm enameled copper wire
And a secondary with approx 1500 turns of 0.2 mm enameled copper wire
the length of the coil is 39 cm
the topload is just some PVC pipes in a toroid like shape wrapped in a few layers of Aluminum foil
(couldn't find a proper toroid)
The driver circuitry follows Steve Wards SSTC 2 build on bread and perf board

When I powered it on for the first time it managed to power a CFL very weakly
I had assumed that a decent sized coil like this would be able to generate arcs of small if not decent length, let alone power a CFL
I noticed a few things on the times we powered it up
There was a small crackling noise from the free end of the Secondary and some coming from the 20 A 600V diode
There was also no change in performance Between when the feedback antenna was connected and not connected
This lead me to believe that there was some problem with the feedback mechanism
If anyone has any suggestions or needs more info
I would be grateful to hear them or supply said info
Thank you 

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