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Atma-Sphere MA-1

Hello cpotl
I'll get to your question after this first picture.
A few years ago I had a friend build 'risers' for my MA-1 amps.
In hindsight, 3" was not enough.
Good gosh are those 200uF Mundorf Tubecaps big!!!!

Let's get to cpotl

In this next picture, I have removed the orange drop cap and the 7.5 Ohm resistor. These two appear to make an RC circuit. A quick calculation puts the corner frequency at 212,314Hz. I will assume this RC filter filters out the Utility Companies ~200000Hz carrier signal. This signal is how different power stations 'talk' to each other.

I am not an electrical engineer.

The 'front' of the RC circuit is connected to the HV caps, and the 'back' of the circuit is also connected. This is through the 600 Ohm resistors.

I need help in understanding this.

The original HV power supply caps are directional?.
The new ones will not be. They are 'film'.

Question: Does current and voltage pass in both directions in the 'old' capacitors?

Do the 600 Ohm resistors connect the power, coming to the caps from the transformer, to the RC circuit, therefore 'cleaning' the power to the HV caps?

If yes, then any value around 600 Ohms will work.


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