Wednesday, 17 June 2020

Intersound IVP Tube Voice / Aion Isotope

Schematic, info and PCBs HERE


11 comments:

  1. Excuse my ignorance but, what´s the meaning of the transparent resistors?

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  2. Just to show you the cuts in the copper track.

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  3. Consider this one verified. Sounds great. Instant Albini tones.

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    1. Very cool! This one is pretty high on my list. So...how does it behaves? Loke a booster, overdrive or even fuzz/distortion?

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  4. It’s more a booster/overdrive. Can get fairly gainy. Sounds great stacked with other stuff. Has that solid state, sterile (in a good way) drive sound. As per the notes in the Aion build document the treble control does produce oscillation in the last 10% of the pot. I just tacked a resistor (10k I think) onto the treble pot and it stopped the oscillation.

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    1. Great! Good to know! So you connected 10k(?) resistor to lug 2 or 3 on the treble pot?

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    2. Lug 3. I’ve just boxed it up with a Percolator. Great combo.

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    3. Just built this one up. Sounds pretty unique in a good way. I love a circuit that goes well above unity volume and this one is loud! Running a buffer before the circuit solves the squeal on this one with the treble way up.

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  5. Does anyone know if I can sub the TM018 for a TM019 or anything? Otherwise I'll have to pay through the nose to import one from the US. Thanks.

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  6. I built this and it worked but was oscillating in all settings, I rebuilt the board and it is still doing it. I used different transformers, but I think the problem is just how much gain it has.
    I think I’m just going to just order a board from aion, but may try a shielded cable on the input first.

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