King of Tone regular/high gain - does anyone really know the difference?

Started by jessemhopkins, August 20, 2019, 04:13:57 PM

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jessemhopkins

The only talk I've seen anywhere online has been that the drive knob is changed to 250k from 100k, but Mike himself denied that claim: https://www.thegearpage.net/board/index.php?posts/22521698/. Does anyone know the actual component differences between the two?

jessemhopkins

It occurs to me that some may wonder why I've posted this in building your own effects- I am planning to build a clone. I don't know the bylaws of this forum particularly well, just want to make sure I'm following the rules.

Thanks!

Mark Hammer

That horse has pretty much left the barn, so no problem posting here.  "Your own stompbox" means something for yourself, whether it is a clone of someone's commercial product or a novel design.

The gain of that circuit depends on several different components, of which only one is the Gain pot.  The one Gain pot
adjusts the gain of both the first and second op-amp stages simultaneously.  If you drop the value of the 10k input resistor in the second stage to 6k8, you make the maximum gain of the second stage a little over 35x, instead of the 22x the stock circuit has.  Multiplied by the gain of the first stage, that simple shift from 22x to 35x can make a big difference in the maximum gain of the whole circuit.

I'm not saying that's what the high-gain version uses (I actually have no idea), just illustrating that a higher-gain version can be created without changing the pot.