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These Amps Go To Eleven!

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These Amps Go To Eleven!

Info on building, modifying and repairing amplifiers. Show us your creations and share what's inside.

Members: 67
Latest Activity: Jun 11

Amplifiers

Show us your rig, share your tips and ask any questions.

Discussion Forum

Mini Amp help

Started by Mark Duncan. Last reply by Mark Duncan Feb 10, 2016. 15 Replies

I'm planning to make some mini amps out of old tins and I've been looking at kits based around the LM386 chip. I don't want to buy them from the US or China (I'm in the UK) as I'll have to wait a…Continue

Speaker Wiring Options-- a Question

Started by Wayfinder. Last reply by Wayfinder Sep 21, 2015. 2 Replies

In studying speaker and amp electronics, I've come across a puzzler and currently I don't have enough electrical knowledge to figure out the answer.  So I thought I'd call on some of you wizards out…Continue

Build Your Own Cordless Amp / Preamp-- Easily!

Started by Wayfinder. Last reply by Ted Crocker Sep 2, 2015. 1 Reply

Well, relatively easily.  It's like making a CBG, but simpler.Photo is at the end of this article.  Ted asked me to re-post this here for the Amp group.  Nicetameecha!  :D    CBG players often wish…Continue

New amp hack

Started by Mike Crane. Last reply by Mike Crane Sep 7, 2014. 1 Reply

I've had an old Global Solid State amp for over 20 years and decided to hack it up and put it in a cigar box. A few weeks ago I bought 2 "Edge Lite" boxes specifically for building amps. I finally…Continue

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Comment by Ted Crocker on May 18, 2011 at 9:48pm

I gutted a Fender Mini Twin and put it in an Acid box.  I used a good speaker and it makes a big difference.

 


Find more photos like this on Handmade Music Clubhouse

Comment by Wichita Sam on May 18, 2011 at 9:34pm

Just email me at wichitasam@yahoo.com  We'll find you something for sure....

 

Sam

Comment by David on May 18, 2011 at 8:26pm
Glad ur feelin ok. Im a worriiyn kinda dude. thanks for the tip. still interested in some stuff when ur feelin up to it no hurry tho..... Dave
Comment by Wichita Sam on May 18, 2011 at 8:23pm

Hi David,

 

It has a little mic element in the "mouthpiece"... cut  it off and tied jack to the wires that it was connected to... red to +, black to -.

 

thanks,

the best,

 

Wichita Sam

 

Feeling good... starting to drive a little, one more week off and them back to work 1/2 days.

 

Comment by David on May 18, 2011 at 8:14pm
very kool sam how did u add jak. how u feelin.
Comment by Wichita Sam on May 15, 2011 at 3:52pm

Mark,

 

Thanks, I'll try to get a vid done later this week.  I'm good for about 1 hour at a time in the shop.  This was a step into the shallow end of amp building... I'm ready for more.

 

the best,

 

Wichita Sam

Comment by Mark Ayers on May 15, 2011 at 12:52pm
Sam
You are brilliant! I am going to have to go get one and give it a try. Do you have any video playing it? And yes tools are my addiction, well that helps to feed my CBG addition.
Comment by Wichita Sam on May 15, 2011 at 4:55am

 So, I was in Harbor Freight. After CBGs, tools are my second addiction. What did I see on the shelf but a 6.99 5watt "megaphone"? Not much more than a toy, but it was battery operated and at that price a good project for experimentation.

Toy Megaphone

Anyway, after some dremel surgery and dissembly, I had the gizzards of a low power CBGAmp.

 

Photobucket

 

I had a fried Rocktron amp with a good 6 1/2" 4 ohm speaker and plenty of boxes, so the rest was just cutting and soldering. 

look inside

 

Now she won't rock the house, but for my first venture into CBGAmp land, I'm satisfied. 

nice CBG/CBGAmp Combo

 

Look at the slide show for more pics.

 

 

Next week, the $ 9.99 10watt Megaphone.... ;-)

 

the best,

Wichita Sam

 

Comment by David Sutton on April 9, 2011 at 3:55pm

Can anyone tell me how to wire an amp to this compound retired car speaker? It's actually three speakers. There's a diagram on the back but I don't really understand it.

 

FOUR contacts on the back; a capacitor in between two of them. There's always trial and error, but .... does anyone understand the 'schematic'?

Comment by David Sutton on April 9, 2011 at 2:53pm

Another Amp Question  (when formulating your comment, remember I'm totally new to electronics).

 

I built this .5 watt amp kit, connected it to a small oval speaker. When i play through it the volume is VERY low. If I put an effects pedal between the guitar and the amp, the amp is plenty loud.

 

Is the pedal giving the  signal a boost? If so, how can I recreate that without a pedal? Is there another way to give that signal a boost? IF I were to put a 250kOhm volume pot in the + line to the speaker, would that make a difference in terms of output?

The kit says you can use 9 -12 volts for a power supply. I'm using 9v. If I were to get a 12v power supply, would the amp be louder?

 

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