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confused about pot taper for a tonepump preamp


goonieman
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Hi there,

the spector wiring diagram states that I would need a B250K pot for the vol control... but 'B' is linear?!

I should be going for audio right? A250K?

However, i'm concerned that the preamp has circuitry which caters for the taper, and I don't want to fiddle with factory spec...

Any ideas?

thanks

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For the sake of posterity - turns out that I need linear after all! I was one click away from ordering audio!

From Petr - (who responded same day!) :)

[b]The wiring for one pickup is here:[/b]

[url="http://michalik.cz/images/pdf/bp-4_rev2_en.pdf"]http://michalik.cz/images/pdf/bp-4_rev2_en.pdf[/url]

[font=arial, sans-serif][size=3]volume pot should be audio[/size][/font]

[b]Two pickups - balance, bass, treble & volume is here:[/b]

[url="http://michalik.cz/images/pdf/bp-4_balance_rev2_en.pdf"]http://michalik.cz/images/pdf/bp-4_balance_rev2_en.pdf[/url]

[font=arial, sans-serif][size=3]this balance pot should be linear - 2x500k/B or 2x250k/B for passive pickups, 2x25k/B for active ones[/size][/font]

[b]Two pickups[/b][b] - 2[/b][b] x volume, bass & treble is here:[/b]

[url="http://michalik.cz/images/pdf/bp-4_2volume_rev2_en.pdf"]http://michalik.cz/images/pdf/bp-4_2volume_rev2_en.pdf[/url]

[font=arial, sans-serif][size=3]these volume pots should be linear, too - 500k/B or 250k/B for passive pickups, 25k/B for active ones.[/size][/font]

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