Vox - Treble-Bass Booster ( V8401 )

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...
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analogguru
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Post by analogguru »

Here is FSB-birthday present No. 3, the very sought after:

Vox - Treble-Bass Booster ( V8401 ) schematic

Happy birthday FSB,
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The Rotagilla
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Post by The Rotagilla »

Thanks! :applause:
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MoreCowbell
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Post by MoreCowbell »

Thanks !

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soulsonic
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Post by soulsonic »

Good to see the correct schematic finally!
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Ivana
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Post by Ivana »

thanks!
Imho not so far from I guessed here https://www.freestompboxes.org/viewtopic ... oxes#15535

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Post by JHS »

To me the wiring of the 100k at the trannieoutput w/o any decpoupling cap looks kinda strange.
Anyone got a clou why it's wired that way? Thank in advance...

JHS

analogguru
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Post by analogguru »

With the 100k resistor the maximum collector voltage in this circuit is limited to 3V.

The V8401 had a predecessor.
I assume, that they took another circuit running on 3V ( maybe with a Ge-tranny) and "converted" it resulting in this circuit.

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.

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