I build this tester/simulator from Mr. Carlson's Patreon page. I show how it works and how to design a simple common emitter amplifier with the device.
Made something similar on a PCBs using trimmer pots. A spreadsheet gets me the approx values and use the PCB to fine tune it. Another board for JFETs. Use a 6pin IC socket for a transistor socket and have EBC down one side BCE on the other side. Put in a little slide switch to add a bypass cap. Same sort of thing for power transistor, but use 5W substitution boxes for the Collector/Emitter resistors.
What is "beta" ? The current gain in the common-emitter circuit is called Beta (β). Beta is the relationship of collector current (output current) to base current (input current). so e.g. 3 milli-amp in, 150 milli-amp out, Beta is 50 ? no idea which transistor was used in the demo, but datasheet for bc546 shows no BETA keyword, does show hFe = DC CURRENT GAIN gives a range. Seems BC639 might be better.
Thanks for posting your completed project. You have presented information in a way that makes me feel encouraged!
Awesome ... keep on making things with electronics. Cheers!
This is a good basic amp, good for any beginner to understand and build, good for testing how to measure around a transistor.
Made something similar on a PCBs using trimmer pots. A spreadsheet gets me the approx values and use the PCB to fine tune it. Another board for JFETs. Use a 6pin IC socket for a transistor socket and have EBC down one side BCE on the other side. Put in a little slide switch to add a bypass cap. Same sort of thing for power transistor, but use 5W substitution boxes for the Collector/Emitter resistors.
That is awesome ... you should make a video on it. Cheers
Done the same thing on breadboard in electronics lab class.
Wow, that's great to hear as I am merely learning what topics to familiarize myself with, to learn. Thank you for sharing the idea.
Love job Thank you very much indeed.
You are very welcome
Wow, Great video, well done, I was wondering if you could dissect my videos of my coils on a video.
Sorry ... I have no time. Busy with some new videos of my own. Use Davinci Resolve to edit your videos. It is free.
What is "beta" ? The current gain in the common-emitter circuit is called Beta (β). Beta is the relationship of collector current (output current) to base current (input current).
so e.g. 3 milli-amp in, 150 milli-amp out, Beta is 50 ? no idea which transistor was used in the demo, but datasheet for bc546 shows no BETA keyword,
does show hFe = DC CURRENT GAIN gives a range. Seems BC639 might be better.
hFe and Beta are the same thing.
BTW, I was using a 2N3904 for the video
What video number on Mr. Carlson's patreon list is this? I do support him, but don't see this by the same title.
Hi ... it was video 12 and 13 on the patreon site. cheers!