UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Would we have got to the moon with no semiconductors?

24th Nov 2020, 5:43 pm

I wonder if using an alpha (positively charged particle) source for the "cathode" of a valve would make a PNP one? It would be prohibitively radioactive though and the idea of space charge disappears.

Using valves would only be a matter of size and power consumption no matter how impractical. I am glad to have started this thread, very interesting.

24th Nov 2020, 5:43 pm	#58
Guest Guest Posts: n/a	Re: Would we have got to the moon with no semiconductors? I wonder if using an alpha (positively charged particle) source for the "cathode" of a valve would make a PNP one? It would be prohibitively radioactive though and the idea of space charge disappears. Using valves would only be a matter of size and power consumption no matter how impractical. I am glad to have started this thread, very interesting.