Voltage

[dtdionne]

I just found out that voltage moves in the opposite direction of electrons...does this mean that voltage is more like a chain than water flow in the sense that a hose can run out of water and a chain is constant and all parts start, stop and resume at the same time? So using the bias tap wire as an example, which way does the voltage flow, does it flow away from the PT or to the PT?

[novosibir]

@ dtdionne

The title of this forum is:

Metropoulos Amplification
All about my recreations of '60s Marshalls.

Would you please in future post common technically questions in the relating forums?

The relating forums for general technically questions are:

- Repairs, restoration and mods
- Transformers and Chokes
- PTP circuit boards
- DIY

depending on the kind of question.
If in doubt, then "Repairs, restoration and mods" always is ok.

Therefore your topic was moved here.

[dtdionne]

ttt,

[paolojm]

????
You sure you don't mean "conventional current"?

The bias circuit in a fixed bias amp is high impedance and no appreciable current flows. That's why only a half wave rectifier and minimal filtering is required.

Actual current will flow from the more negative voltage level to the more positive. Conventional current flows the other way. "Actual" and "conventional" are two different terms for the same thing, they just have opposing directions. You have Benjamin Franklin to thank for that.
It makes no difference to the understanding of a circuit whatever way you pick, as long as you're consistant.

Voltage is an excess of charge at one point, relative to another.

[dtdionne]

hey paolojm, thanks for replying. I guess I was talking from a more foundational level. What spawned my question was the voltage difference accross a resistor. For example, the 27k bias resistor that connects to the bias tap has a higher voltage after the resistor than before which lead me to believe that the current is flowing in the opposite direction than I expected. I expected the current to be flowing from the PT to the bias resistor which would mean that the voltage should be lower after the resistor and then I read that electrons move in the opposite direction of the current so I thought that maybe it was the electrons moving from the transformer to bias resistor and if that were the case, voltage functioned more like a chain than a hose. But this all stemmed from the fact that it I have higher voltage on the bias tap after the bias resistor and i don't know why.

[stoo]

In fixed bias amps, you apply a negative voltage to the grid of the tube relative to the cathode. This means the the voltage after the resistor in the bias circuit is a lower negative voltage than that closer to the winding. Being less negative I suppose you could say it is more positive
Stew

[dtdionne]

Thanks stew, that makes good sense...