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Beginer Schematics Needed

B

Bill Gallagher

Jan 1, 1970
0
Hi!
I need to find a simple amplifier schematic for my son's
guitar...Loud enough to be heard well but not loud enough to be able to P.O.
the landlord.

Also I need a simple schematic for an echo unit(like a bucket brigade) using
a 555 chip.

I have a bunch of spare parts to use on these projects but I'm a novice so I
need very simple designs...

Thanks in advance...

Bill

[email protected]
 
J

James Douglas

Jan 1, 1970
0
Bill said:
Hi!
I need to find a simple amplifier schematic for my son's
guitar...Loud enough to be heard well but not loud enough to be able to P.O.
the landlord.

Also I need a simple schematic for an echo unit(like a bucket brigade) using
a 555 chip.

I have a bunch of spare parts to use on these projects but I'm a novice so I
need very simple designs...

Thanks in advance...

Bill

[email protected]
Looks like the first one is pretty easy.

http://www.google.com/search?hl=en&q='simple+guitar+amplifier+schematic'
 
P

Pooh Bear

Jan 1, 1970
0
Bill said:
Also I need a simple schematic for an echo unit(like a bucket brigade) using
a 555 chip.

You can't make an analogue delay from 555s ! I don't think you can even get
those charge coupled delay chips any more anyway. It's cheaper to do it in CD
quality DSP now.

Graham
 
P

Pooh Bear

Jan 1, 1970
0
David said:
On 27 Jan 2006 22:33:48 -0800 in sci.electronics.basics,
[email protected] wrote,


LM386 with input signal full blast on the input and a "rheostat" on
the output to control volume? Is that whacky or is it just me?

Probably the design of a recent 'graduate' going by what I hear of the
skills being taught currently.

Graham
 
David said:
On 27 Jan 2006 22:33:48 -0800 in sci.electronics.basics,
[email protected] wrote,


LM386 with input signal full blast on the input and a "rheostat" on
the output to control volume? Is that whacky or is it just me?

Some of these guitar players want to take advantage of the way the chip
distorts. The same web site has a variation called "Little Gem" that
puts a common pot in front of the 386 instead of the rheostat after.
The manufacturer's data sheet circuit is probably the place to start
with the LM386.
 
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