Author Topic: Katana Boost Volume Pot Question  (Read 185 times)

chordball

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Katana Boost Volume Pot Question
« on: August 12, 2017, 09:41:55 AM »
Hey everyone, I've searched but haven't found an answer so Im asking for a little help.

On the Katana boost, the stock volume pot is 250kB. I've seen it suggested that an audio taper is better. I don't have a 250kA pot but I do have a 100kA pot. Can anyone tell me what difference it would make to use a 100k volume pot vs 250k?

I'm working on a perf layout for the Katana with adjustable gain and switchable boost caps. I'll share it when I finish.

Thanks in advance for any help.

midwayfair

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Re: Katana Boost Volume Pot Question
« Reply #1 on: August 12, 2017, 03:56:33 PM »
I've seen it suggested that an audio taper is better.

Better in what way? Try both. see which one you like.

The point of a booster is to boost, though. An audio taper will put unity closer to noon. What do you need unity volume for on a booster?
Myself's music & things I make: http://jonpattonmusic.com. My band: http://midwayfair.org. PCBs of my designs from: http://www.1776Effects.com (Bearhug Comp & Cardinal Harmonic Trem); http://www.jmkpcbs.com (Hamlet+ delay & Blue Warbler envelope vibe); Snow Day OD/Flabulanche: www.madbeanpedals.com

chordball

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Re: Katana Boost Volume Pot Question
« Reply #2 on: August 12, 2017, 09:01:56 PM »
I've seen it suggested that an audio taper is better.

Better in what way? Try both. see which one you like.

The point of a booster is to boost, though. An audio taper will put unity closer to noon. What do you need unity volume for on a booster?

I see your point about the taper so I will try them both. In the meantime, where could I find some info on the effects of the volume pot value?

midwayfair

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Re: Katana Boost Volume Pot Question
« Reply #3 on: August 12, 2017, 09:28:41 PM »
where could I find some info on the effects of the volume pot value?

The output impedance of the effect is 4.7k.

Plug 4.7 in as the top leg of a voltage divider, and 100K versus 250K in as the lower leg, and decide if it will make a big enough difference to care about.
Myself's music & things I make: http://jonpattonmusic.com. My band: http://midwayfair.org. PCBs of my designs from: http://www.1776Effects.com (Bearhug Comp & Cardinal Harmonic Trem); http://www.jmkpcbs.com (Hamlet+ delay & Blue Warbler envelope vibe); Snow Day OD/Flabulanche: www.madbeanpedals.com