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I just installed the Carling 3-way switch, Jupiter caps and put switches on the bias bypass cap, NFB and tone stack mods.
The switch is nice. It gets the job done and feels great doing it.
The Jupiter caps sound great right off the bat. The amp already sounds slightly less constipated.
These things are supposed to sound even better after several hours?!?!
The switches on the three mods are for evaluation of the mods only. I won't leave them on there.
The fixed tone stack lowers the gain a lot and stifles the sound. The lack of a negative feedback loop and the bias bypass cap make up for that.
With the fixed tone stack removed and no other mods, the amp has a lot of gain (for what it is) and is somewhat shrill.
Removing the bias bypass cap reduces the gain quite a bit without messing with the tone much.
Adding the NFB resistor lowers the gain even more.
So far, I like the amp best with the tone stack removed (mod), the bias bypass cap in place (stock) and the NFB resistor (mod). For me, it's the right combination of gain and control.
I don't like the bias bypass cap removed and NFB resistor in place. The amp is too polite.
I'm going to leave the switches in place for a few days and reserve the right to change my mind on the bias bypass cap and NFB resistor mods.
Now for some smaller filter caps...
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Don
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