Bench testing the beast… On the left is the power supply area, two 2100v microwave oven transformers, a 12v 12A heater transformer, level shifter diodes, capacitors and one of the control variacs. Bottom right hand corner shows the oscillator unit, top right hand is the primary and secondary coils. In … Continue reading…
The freshly wound secondary coil. The coil former is 68mm pvc pipe, dried, wound and varnished three times. As before, the winding jig was made up of junk box stuff, this time I used a battery operated drill to turn the former, which was much better. Total winding time was … Continue reading…
As before, four 470pF 20kV 60kVAr Capacitors, connected in parallel for a total value of 1880pF. They are quite large, the total length of the unit is around 420mm and weighs around 2kg ! I have connected them with 25mm x 1.5mm aluminium strips.
11/08/2005 – Testing the oscillator. This part of the project actually worked first-time ! The first oscilloscope picture shows the oscillator output at the bottom and the power amp outout at the top. Voltage level shows 100v/cm, this is at the lowest frequency and clearly shows the poor waveform associated … Continue reading…
20/08/2005 – Debugging the coil. After lashing the coil and main tube together on a chipboard base, i carefully applied power to all the right places and…. Nothing ! Oh dear. I thought. After a lot of headscratching and email burning between the members of the Tesla group, I decided … Continue reading…
22/08/2005 – Further tuning. I gave the coil a lengthy run to see if anything blew up, and it didn’t ! Then it was time for a full power run, chair was moved back a bit 🙂 and the knobs were all twiddled to their relative maximum settings, it’s not … Continue reading…