Recent content by eigenmax

The square component is a voltage regulator tube. The pulses are taken from the free end of the capacitor and the tube cathode (shell) to the amplifier (not shown).

Sorry about this, I haven't got much computer knowledge. Will this work?

Sorry, I'll fix that now. file:///Users/johnodonoghue/Downloads/circuit.svg does this work better?

https://www.circuit-diagram.org/editor/ Hi, I was wondering if this is a good voltage rectifier and regulator for a GM tube power supply? The AC supply is approximately 500V, and the strange component at the bottom is a voltage regulator tube. Seems to work OK but I don't have any test equipment...

The article I was reading was in The Amateur Scientist, a book written 1960 as a compilation of all the Amateur Scientist columns from the Scientific American throughout the 50s. It describes the operation of standard (self-exciting) VDGs, but this is all it has on the external excitation. I'm...

My question regards the polarities of the excitation supply and terminal in an external-excitation VDG. As you all probably know, external excitation VDGs use a voltage supply (usually 5,000-10,000V) to influence the charge on the lower pulley, instead of just relying on frictional contact to...

The arc symbol is the FET casing I believe.

Sorry for the late reply. I'm using an old 100M resistor I removed from a broken piece of old electronics. I built the circuit, but realized my meter was probably not nearly sensitive enough (old analog 1-6V meter). I'll check the potentiometer thing now.

Thank you, Rive! So that 1M, 10k resistor network is simply connected between pin 7 and 1. Thanks!

Hello, I've been doing electronics for a while now, and only recently started using ICs. I have no problem with the 555 timer (I've used it in several circuits), but recently found and attempted the construction of a few circuits with the LM358 op-amp. On each there were two triangles, which I...

Ah, ok. Thanks.

Carbonate leaches are often used in uranium chemistry a way to leach uranium into solution. Thorium dioxide is highly insoluble in everything except hot, concentrated sulphuric acid. Would a carbonate leach work for thorium?

Oh, ok. Sorry. That comes out to be 7.66eV. That seems awfully low. One can't run a proton accelerator on 7.66 volts.

eV

I would think the answer to be around 350keV