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January 20, 2015, 10:51:32 AM

981221
Posts in 104370 Topics by 33635 Members

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DIYstompboxes.com
|  DIY
Stompboxes  |  Building
your own stompbox  |  better
compressor pedal??

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Topic: better compressor pedal??  (Read 29594 times)

PRR

Posts: 6382

Paul R. - Maine
USA

Re:
better compressor pedal??

« Reply #80 on:
January 25, 2012, 10:07:59 PM »

> raise this page from the
dead ... a way to meter how much Gain Reduction is
going on ...an LM3915

Logged

O

Posts: 444

Re:
better compressor pedal??

« Reply #81 on:
February 25, 2012, 01:24:18 AM »

Out of all the layouts posted on
this thread (for the Merlin compressor), are any
of them verified and ready to build? I want to
start on a compressor project for this weekend,
but I don't want to make a layout if there is one
out there that is verified (reinventing the wheel
and all that...)

Thanks!

Logged

merlinb

Posts: 1226

Merlin, Lancashire
UK

Re:
better compressor pedal??

« Reply #82 on:
February 25, 2012, 10:12:08 AM »

Quote
from: O on February 25, 2012, 01:24:18
AM

Out of all the layouts posted
on this thread (for the Merlin compressor), are
any of them verified and ready to build? I want to
start on a compressor project for this weekend,
but I don't want to make a layout if there is one
out there that is verified (reinventing the wheel
and all that...)

To be honest, I wouldn't
bother to build that design now. I have a far
superior compressor in the pipeline, which should
be released in a few weeks. It uses an LM13700 and
a couple of opamps, and has performance that will
shatter all the other DIY compressors. Watch this
space...

Logged

O

Posts: 444

Re:
better compressor pedal??

« Reply #83 on:
February 25, 2012, 09:00:59 PM »

Quote
from: merlinb on February 25, 2012, 10:12:08
AM

To be honest, I wouldn't bother
to build that design now. I have a far superior
compressor in the pipeline, which should be
released in a few weeks. It uses an LM13700 and a
couple of opamps, and has performance that will
shatter all the other DIY compressors. Watch this
space...

allrighty then... I'll
keep my eyes on this thread.

Logged

deadastronaut

Posts:
10063

Rob H.
LONDON

Re:
better compressor pedal??

« Reply #84 on:
February 26, 2012, 04:32:48 AM »

ooh oohhh me too...been thinking
of building a comp....

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http://www.youtube.com/user/100roberthenry
http://deadastronaut.wix.com/index

^
CHASM REVERB / TREMSHIFTER Pcb's/ FAZE FILTER
pcb's + WAH LIGHT
PLATES.

merlinb

Posts: 1226

Merlin, Lancashire
UK

What's
that sound?

« Reply #85 on:
April 13, 2012, 03:56:50 AM »

A better compressor is coming...

Four
times more headroom than a Dynacomp?

Half the noise of a Dynacomp?

Same available sustain as a Dynacomp?

Fewer parts and cheaper than a
Dynacomp?

Possibility for all five knobs?

Fits in a 1590B?

Millennium bypass?

If you
answered 'yes' to all of the above, then you might
be the Engineer's thumb.... Just to wet your
appetite, he's a sneak preview:

Logged

mr_deadmaxxx

Posts: 150

Don -
Phil.

Re:
better compressor pedal??

« Reply #86 on:
April 13, 2012, 04:14:21 AM »

we want soundclips

Logged

Maik

Posts: 245

Re:
better compressor pedal??

« Reply #87 on:
April 13, 2012, 05:22:31 AM »

we want everything

Logged

Slade

Posts: 845

Fernando R. from Chile

Re:
better compressor pedal??

« Reply #88 on:
April 13, 2012, 05:56:08 AM »

I want that bad!!!!!!!

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http://ruzguitargear.blogspot.com/
RGG Facebook!
Tutorial - Making a Multicolor
Etching[/url

deadastronaut

Posts:
10063

Rob H.
LONDON

Re:
better compressor pedal??

« Reply #89 on:
April 13, 2012, 07:31:08 AM »

+1+1+1...^

Logged

http://www.youtube.com/user/100roberthenry
http://deadastronaut.wix.com/index

^
CHASM REVERB / TREMSHIFTER Pcb's/ FAZE FILTER
pcb's + WAH LIGHT
PLATES.

nobodysweasel

Posts:
50

Re:
better compressor pedal??

« Reply #90 on:
April 13, 2012, 02:26:37 PM »

more more more more
more!

Logged

Mustachio

Posts: 743

Jim

Re:
better compressor pedal??

« Reply #91 on:
April 13, 2012, 07:47:47 PM »

Awwww yeah!  CANT WAIT FOR FINAL CIRCUIT! OMG!
*dies*

Ah I love compressors! this
looks great cant wait to build it!

Logged

"Feed me or feed me to
something, I just want to be part of the food
chain"

waltk

Posts: 559

Walt K.

Re:
better compressor pedal??

« Reply #92 on:
April 13, 2012, 08:00:49 PM »

Me too.+++

I've got my
LM13700s on order.  When you're ready, post a
schematic.

About the BC327; what would be
good replacements for that? 2N2907?
2N4403?

Logged

petey
twofinger

Posts: 998

Re:
better compressor pedal??

« Reply #93 on:
April 13, 2012, 10:09:58 PM »

this is soo off topic but
;

i updated VLC media player tonight and
the new version includes an audio compressor
!

i have been moaning about that for years
. now i can watch movies and tv at all hours of
the morning without having to constantly jerk the
volume up and down with the mouse . yea VLC
!!!!

it has an eq as well and its a bit off
the path to save the all the settings but man is
it nice .

Logged

im learning , we'll thats
what i keep telling
myself

jubal81

Posts: 145

Re:
better compressor pedal??

« Reply #94 on:
April 13, 2012, 10:35:42 PM »

Four times the headroom with a
9V supply? Alchemy!

Logged

merlinb

Posts: 1226

Merlin, Lancashire
UK

Re:
better compressor pedal??

« Reply #95 on:
April 14, 2012, 03:48:48 AM »

I'll post the schem when I have
finished decorating the enclosure and done sound
clips. The actual circuit is finalised though.
Very layout unconfirmed, but thoroughly checked so
far!

Quote
from: waltk on April 13, 2012, 08:00:49
PM

About the BC327; what would be
good replacements for that? 2N2907?
2N4403?

Any PNP should work if you take
care to check the pinout. 2N3906 and any of those
you mentioned should be OK. Not sure how you
choose your transistors in the US!

Quote

Four times the headroom with a
9V supply?
It may run on 9V but the Dyna has
less than 1Vp-p headroom! Not too hard to improve
on that...

« Last
Edit: April 14, 2012, 03:50:34 AM by merlinb
»

Logged

waltk

Posts: 559

Walt K.

Re:
better compressor pedal??

« Reply #96 on:
April 14, 2012, 09:36:18 AM »

Quote

I'll post the schem when I have
finished decorating the enclosure and done sound
clips.

Thanks Merlin.  Can't wait to
see it...

Quote

Not sure how you choose your
transistors in the US!

We start by
picking anything that doesn't start with BC
.

Seriously, the 2n3904 and
2n3906 are probably the cheapest and most widely
available.  I would use these first (for NPN
and PNP respectively) unless there was a specific
requirement for some other characteristic (like
higher or lower hFE).  I noticed the BC327
supports Collector current up to 800ma, but the
2N3906 has an absolute maximum Collector current
of 200ma - that's why I asked.

Logged

gritz

Posts: 261

Jonathan G.

Re:
What's that sound?

« Reply #97 on:
April 15, 2012, 12:44:06 AM »

Quote
from: merlinb on April 13, 2012, 03:56:50
AM

Just to wet your appetite,
he's a sneak preview:

Feedforward? Or are these old eyes
missing something? (apart from an
R10!)

Anyway, looking forward to seeing it
taking shape merlinb!

Logged

merlinb

Posts: 1226

Merlin, Lancashire
UK

Re:
What's that sound?

« Reply #98 on:
April 15, 2012, 02:20:16 AM »

Quote
from: gritz on April 15, 2012, 12:44:06
AM

Feedforward?

Very well
spotted!

Logged

bonaventura

Posts:
42

Re:
better compressor pedal??

« Reply #99 on:
April 15, 2012, 04:46:50 PM »

i just finished my first
compressor (optical) when this thread caught my
attention.

looking forward to schematic and
a bit of explaining of whats really going in there
for us newbies.

believe a new thread is in
order for this circut.

Logged

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