Transistors Germanium MP26B analogue ACY24, OC77 USSR 25 pcs

hi I'm Jess Siddons from peak electronic design limited here in Buxton UK I've got here Atlas DC a model DCA 55 which I'd like to show you the Atlas DCA is aimed at analyzing most semiconductor components such as transistors MOSFETs LEDs diodes and a few other devices including sensitive or low-power Triax and thyristors I'm going to start with testing a few components and showing you its capabilities as well as showing you some of these limitations of course so we're going to start with this to3 device and this still has its markings it's a 2 n 3 o5 5 I'm going to connect the test leads to this device anyway round doesn't matter what order I connect the test leads I'm going to press the on button and we can see that the analyzer after it's analyzed as come up with NPN silicon transistor which of course that's what it is and if we press the scroll button it tells us more information suc