For some circuits you need hand matched transistors whose emitter currents are the same at the level of about 10 ppm. With three resistors, a diode, some sockets, a multimeter, and saint level patience, it's easy!
00:00 Intro
00:10 What's transistor matching about?
01:47 The circuit
02:33 Breadboard follies
03:42 Stripboard success
04:01 How to do it
09:15 Wrapup
Kassutronics article: https://kassu2000.blogspot.com/2015/10/transistor-matching.html
Ian Fritz's article: https://dragonflyalley.com/synth/images/TransistorMatching/ianFritz-transmat0011_144.pdf
Music: Ringtone by Rich Holmes
