Today its finaly time for the triode! And this time there will be 3 of them.
Honestly, at this point, I’m a bit unsure if I have devices enough to cover all of the days untill the 24th. Without retreating onto hevily experimental devices. I guess time will show.
Today is a interesting, old 5V Zener diode from the early 60s. Its in a metal capsula and made by Intermetall.
This funny voltage regulator tube appeared here, so why not curve trace it?
Halfway there now! Today is a Balast tube, Amperite 9-4.
150V spark gap
108V voltage regulator will be the 2. thermonic element we curve trace.
Notice how its not realy linear on the start up.
Todays picture is a 6D4 Thyratron operating as noise generator.
And with that we are going to do some tube elements.
Todays component is a Germanium NPN transistor 2N1302.
Notice that the linearity isn’t great.
Another interesting curve by swapping around on the connections:
Todays picture is a Triac.
Todays curve is a J310, a depletion mode J-FET.
RF and electronics blog LA3PNA 