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Vox AmPlug

Started by IGR, November 13, 2007, 12:31:44 PM

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IGR

Did anybody dismantled this dwarf? Sure it´s not worth to rebuild, but used technology (3V, low power??) makes me overcurious. Here in Czech Rep it´s still unavailable.

ncc


I'm with you.
It would be interesting to know how many parts they
used to reproduce up the VOX sound. I would love to see inside !

About the 3volt power, I wonder if they used this technique explained in the
video for the Joule Thief from the make magazine
http://www.makezine.com/blog/archive/2007/11/make_a_joule_thief_weeken_1.html

The guys in the video  use a 1.5 volt  battery with a toroid/winding to power a LED that
would only normally work at 3 volt.

I wonder if the same design can be use to power a small audio circuit from
3 volt and give it more power, i.e. 5-6 volts from 3 volts. 

Make sense?

Norm

soulsonic

There are several little chips made now that are designed to work on 1.5v, there's also several DC-DC converters designed to turn 1.5v into something more useful.
Check out my NEW DIY site - http://solgrind.wordpress.com

IGR

With this term "low power" I thought, strictly speaking, low power consumption. If it has DC-DC step up converter, considering it doesn't matter. BTW headphone amp chip MAX 9725 has operating voltage 0,9 to 1,8 V and has step up converter on-board. AmPlug reminds me my older unsuccessful effort , to build whole ampsim of AC30 (my much favoured) at one 4069UBE chip, in form of  little swollen guitar jack. It seems like foresight. But now guys from Korg achieves it. :)

soulsonic

All those tiny little MP3 players they make now mean we can do tiny little guitar effects too. :)
Check out my NEW DIY site - http://solgrind.wordpress.com