DIY Voltage Reference on Discrete Components - Testing the Second Version and Circuit Breakdown.
In this video, I test the thermal stability of a homemade reference voltage source, which was chosen as #1 here: • Загадка - что за устройства. Калибровка во...
In the second half of the video, I briefly analyze the circuit diagram.
Video describing the selection of field-effect transistors:
• Подбор полевых JFET транзисторов КП303 по ...
Link to the ION circuit diagram:
http://crossover.ucoz.ru/_ph/19/55937...
This homemade reference voltage source with nominal values of 9, 5, 1, 0.6, and 0.1 volts was made in 1983 for the metrology needs of my home radio lab. I've now slightly modified the circuit, removing the zener diode, which degraded the parameters, and conducted thermal stability tests.
Equipment and materials used in the video:
Homemade voltage reference source;
Chinese M838 Digital Tester multimeter, model 838;
Universal digital voltmeter B7-38;
DC power supply B5-31;
Rexant 12-0054 hair dryer;
Electrolux cold accumulator.