Way Huge Green Rhino, MKI Schematic?

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pmkipp
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Post by pmkipp »

Anyone? Have one in the shop, and when the tone control is turned all the way clockwise (to treble) the signal diminishes and gets a little freaky. Has to warm up for this effect to happen.
Pete's Pedals
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Frank_NH
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Post by Frank_NH »

I would think it would be similar to a standard tube screamer, but you can check the schematic for Mk2, which is posted at a thread here at FSB.

Could you trace the circuit? I would be interested to see what mojo Mk1 had versus Mk2. I've owned a Mk4, and it had a switch which allowed you to choose between the Mk1 or the "modern" version (with the extra tone controls). Overall, not a bad tube screamer, but I ultimately sold it as it wasn't that much better than other alternatives.

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pmkipp
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Post by pmkipp »

Thanks. It is an exact copy of a standard TS-9 Tubescreamer circuit, with different OpAmp and transistors. Otherwise, all the values are the same except for the Tone pot, which is 25k instead of 20k. The MKII is completely different.
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Post by Frank_NH »

Thanks for the information. I'm currently loving the Carvin T0-2 overdrive that I recently fixed (bought as a dead pedal from eBay), which is just a straight up clone of the Boss SD-1. It's tone is smooth in a way my other TS clones aren't - maybe it's the old JRC4558D op amp? :D

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