I want to make a MAR tube. Do you know the composition of the anodes (graphite like a motor brush?), the disc on the cathode, the wire or rod within the anodes going to outside the tube and it's gauge, the glass (soda glass or borosilicate) and the level of vacuum needed for proper function? I have searched and found little information about specific construction of a tube.
@@GoldenAgePuritan anodes are just graphite, there’s no disc on the cathode it’s literally just a big wire going into a big pool of mercury. The glass is Pyrex, not sure the exact numbers for the vacuum though so you’d have to have a play and see what works
I’d guess the pulsing hum might be due to the fact that it’s being rectified to DC along with the high current. Probably making the transformer’s core saturate for part of the cycle.
@ Heard that part with the table making the rhythmic pulsing 🙃 But at least from here the transformer itself has a surge to the hum on each cycle when it’s loaded down which is probably what’s making the table do it’s gyrations.
Bring it up as I used to have a home theater AVR that would vibrate so much that it would literally walk itself out of the stereo rack whenever I tried to use my laser printer in the next room. The pulsing DC made the transformer saturate and the whole cabinet would bounce around like a ping pong ball.
Noice noises
that slight shift in the video (on the cmos) when the transformer works (due to emf).
What, no PopTarts?! ;)
I want to make a MAR tube. Do you know the composition of the anodes (graphite like a motor brush?), the disc on the cathode, the wire or rod within the anodes going to outside the tube and it's gauge, the glass (soda glass or borosilicate) and the level of vacuum needed for proper function? I have searched and found little information about specific construction of a tube.
@@GoldenAgePuritan anodes are just graphite, there’s no disc on the cathode it’s literally just a big wire going into a big pool of mercury. The glass is Pyrex, not sure the exact numbers for the vacuum though so you’d have to have a play and see what works
@TheCORC964 Is the wire just copper or something fancy like Dumet?
I’d guess the pulsing hum might be due to the fact that it’s being rectified to DC along with the high current. Probably making the transformer’s core saturate for part of the cycle.
@@mysock351C it was just vibrations from it not being on a stable surface lol
@ Heard that part with the table making the rhythmic pulsing 🙃 But at least from here the transformer itself has a surge to the hum on each cycle when it’s loaded down which is probably what’s making the table do it’s gyrations.
Bring it up as I used to have a home theater AVR that would vibrate so much that it would literally walk itself out of the stereo rack whenever I tried to use my laser printer in the next room. The pulsing DC made the transformer saturate and the whole cabinet would bounce around like a ping pong ball.
What power are the heating elements rated it? I’m interested how much load you were putting on the rectifier and the rectifier’s rated capacity?
@@slendermanRblx rectifier is 40A at 480v but the element was probably only doing a couple amps as it 40A it’s extremely bright