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Registered Member #2273
Joined: Thu Aug 06 2009, 07:02PM
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Posts: 37
Hi Guys!
A few days ago, I finished my first DRSSTC. Its a simply 74hc14-sekondyry bottom feedback, a Driver with UCCs and a fullbridge of IGBTs. The coil is 11cm*20cm with 0.2wire. Now I decided to audio moulate the teslacoil. I build the switching from this site: (u can find the circuit under Projekte/DRSSTC/Musical DRSstc) Well, it didn't work. I must say: I used the NE555 instead of the LM555. And because they hadn't the LM741 on my electronicstore, I had a look on datasheets and decided to take the LM301 and the Lm4250 (i wanted to try which one works/ works better) because they have the same pin configuration with regard to the pins that matter. Okay, the results are bad: -no output -the 100 O resistor gets hot -the signal at the input of the OP Amp is just a sinus (I found out, the the signal coming from the MP3-Player becomes this sinus when I connect it to the Switching) usually the signal pulses to the rhyme of the music
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DRSSTC- Audio mod
