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lab:pigi:hardware [2013/07/27 11:23] – [Recommended Hand Solder Order] chrono | lab:pigi:hardware [2016/03/29 10:04] – [High Voltage] chrono | ||
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| T1 | NPN transistor with a >=1kV collector-emitter breakdown voltage | [[https:// | | T1 | NPN transistor with a >=1kV collector-emitter breakdown voltage | [[https:// | ||
- | The inductor is a high Q wound dust core choke with shielding to minimize EMI. The output voltage is set by the maximum current, which is controlled by the adjustable trimmer (R10) in the emitter lead of the STN0214. A lower resistor value (turning CCW) wil result in higher output voltage. Alternatively, | + | The inductor is a high Q wound dust core choke with shielding to minimize EMI. The output voltage is set by the maximum current, which is controlled by the adjustable trimmer (R10) in the emitter lead of the STN0214. A lower resistor value (turning CCW) will result in higher output voltage. Alternatively, |
Based on the CMOS 555 | Based on the CMOS 555 | ||
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| 10M (Fluke-87V internal resistor) | 230V | 230V | | | 10M (Fluke-87V internal resistor) | 230V | 230V | | ||
| 10M + 42.3M (9x 4.7MOhm in series) | 63.7V | 333V | | | 10M + 42.3M (9x 4.7MOhm in series) | 63.7V | 333V | | ||
- | | 10M + 1G ([[http://www.highvoltageshop.com/ | + | | 10M + 1G ([[http:// |
Measured at: [+] Cathode of D1 (pin facing towards R2) [-] Cathode of GM Tube (HV- Pad) | Measured at: [+] Cathode of D1 (pin facing towards R2) [-] Cathode of GM Tube (HV- Pad) | ||
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===== Radioactive Test Sources ===== | ===== Radioactive Test Sources ===== | ||
- | Since everything is regulated these days up to the point that only multi-national-companies | + | Since everything is over-regulated these days, up to the point where only multi-national-corporations |
The mightyohm blog has compiled a list of things you can try to use: | The mightyohm blog has compiled a list of things you can try to use: |