2020-June-22 at 01:20
#8816
LectronFan
Moderator
Hi Bbarry,
This just comes to me : is it possible that you used a different light bulb ?
It should be a 6V and 50mA light bulb. Other types may destruct your transistors.
The Base-Emitter junction is quite delicate and can not handle more then a certain milli ampères .
I will make more tests and measurements this evening and will let you know.
Greetings,
Frank