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[question] building effects boxes
 

offline forck_02lynix from brooklyn on 2004-07-27 14:40 [#01287938]
Points: 4000 Status: Regular



anyone here have any knowledge (websites, books, material
resources) on building guitar/bass/synth/vox effects
boxes/stomp boxes? i'd gladly appreciate some input directly
from people who are into making music and/or know about
building circuits.


 

offline r40f from qrters tea party on 2004-07-27 14:44 [#01287942]
Points: 14210 Status: Regular



i'm also interested in learning about this - i don't know
much that could help, though. i've only seen websites that
have instructions for slightly modifying effects or copying
effects. anyone have any radical ideas about building new
effects?


 

offline dave_g from United Kingdom on 2004-07-27 14:51 [#01287946]
Points: 3372 Status: Lurker



I build my own stuff. I work in electronics, so this sort of
stuff is second nature. I take it you have some knowledge of
electronics. You will need some basic tools as well.
i.e. soldering iron, solder, (know how to solder)
cutters, pliers (big and small), wirestrippers
screwdrivers, drill, hacksaw. etc.
you should know your resistors from transistors and be
willing to make mistakes and for stuff not to work.
get a multimeter which can measure. volts, ohms and
miliiamps. if you can afford it, get one which can do
capacitance and transistors and maybe even frequency.
if you can get access to an oscilloscope, that would be very
handy.
feel free to ask me any questions.

look for Electronic Projects for Musicians by craig
anderton.

http://www.amazon.co.uk/exec/obidos/ASIN/0825622034/qid=109
0961050/sr=1-22/ref=sr_1_0_22/202-3319904-1319059

get this book it should have everything you need to know to
start off. its simple. no midi. guitar orientated slightly,
but great book.


 

offline dave_g from United Kingdom on 2004-07-27 15:11 [#01287955]
Points: 3372 Status: Lurker



heres one to get you started:

a ring modulator.....
with a twist. It requires no power. it is totally passive.
you will need:
two audio transformers (1:1 ratio small ones)
link either one in the link is fine.
4 GERMANIUM diodes. I beleive this doens't work with silicon
ones, although have never tried it (something to try this
weekend) try to look for OA90 or OA91 diodes. again these
are small and should be easy to find.
finally 3 jack sockets to plug in your inputs.
a full schematic is found here:
http://www.synthfool.com/ringmod.html
the site doesn't mention it, but you can tie the two inputs
together and make a frequency doubler. This is used a lot in
RF design but I have tried it and it works rather well.
Its an old design, and appears in a lot of places, but now
could be superseded by a double balanced modulator chip(for
audio at least), but its much easier to do this way. And
hopefully it will work for you!



 

offline forck_02lynix from brooklyn on 2004-07-27 15:36 [#01287964]
Points: 4000 Status: Regular



thanks, will check out the book and thanks for the info!


 

offline boobah from pants on 2004-07-27 16:20 [#01288005]
Points: 613 Status: Lurker



http://www.ucapps.de/


 

offline dave_g from United Kingdom on 2004-07-31 09:47 [#01291347]
Points: 3372 Status: Lurker | Followup to boobah: #01288005



you dont wanna goto that ucapps thing. that is COMPLEX.
embedded systems, etc. very hi tech stuff. seriously.
START SIMPLE.
start with the passive ring mod or something.
then something which runs of batterys.
then make a powersupply and somehting else
then make more stuff and learn electronics.
learn how to make PCBs
learn about embeddded systems/PICs/CPUs
THEN goto that site and build those projects.


 

offline r40f from qrters tea party on 2004-07-31 13:05 [#01291507]
Points: 14210 Status: Regular | Followup to dave_g: #01291347



thanks for the info and tips... i will be checking out that
ring modulator...


 


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