Actually I'm new only with 555s and FETs, for which I know some theory. The rest I've had a lot of practise in college and at home as much as I can.
Anyways, I've got my hands on an oscilloscope! It's a friend's UNI-T UT81B. Did some testings, and came with a frequency of around 22kHz. But I'm not sure what to expect with peak to peak voltage. For some strange reason, I can only measure it in 100mV on volts/div, which then exceeds the screen. If set to the next step of 200mV, the somewhat triangular waveform takes a really small unrecognisible form with low amplitude. I cannot say what the amplitude is. I could only measure it with 3.3V input, which is then Um=0.72V. (see pics below) DC voltage on pin3 is 5.8 volts. I did testings on 5 different ICs, on 2 separate circuits and a PCB, input voltage 11.8. All gave the same results. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
