Vacuum tube noise source

The florescent lamp gave it a broader bandwidth. It had to wipe out VHF AM communications.

--
Never piss off an Engineer! 

They don't get mad. 

They don't get even. 

They go for over unity! ;-)
Reply to
Michael A. Terrell
Loading thread data ...

That makes sense (depending on the frequency.) PMT's give ~10ns pulses, ~ few ns edges ? (Probably spendier than the gas tube.)

George H.

Reply to
George Herold

Some of the jammers transmitted random microwave pulses, and the PMT was used to make those trigger pulses; it wasn't broadband noise. I use to buy the surplus random pulser modules, a shoe-box sized chassis, from Fair Radio Sales, to get the 931A. The whole thing was $5 or something like that.

--

John Larkin         Highland Technology, Inc 

lunatic fringe electronics
Reply to
John Larkin

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.