Welcome to Solid State Guitar Amp Forum | DIY Guitar Amplifiers. Please login or sign up.

March 29, 2024, 02:11:08 AM

Login with username, password and session length

Recent Posts

 

Loud Community designed 9v battery powered amplifier.

Started by No6h, June 18, 2015, 02:46:19 AM

Previous topic - Next topic

galaxiex

#45
I have built a few speaker cabs using this book as a guide.

http://www.londonpower.com/audio-design-books/Speaker-Book

It's not specifically for combo amps, but may give you some ideas.
Could easily modify the designs to accommodate the amp in the cabinet.

What woodworking experience do you have?

Power tools? Hand tools?

At minimum you will need a table saw and a jig saw for cutting the speaker opening. I use a router and circle cutter, but a jig saw works.
Clamps, wood glue, screws, drill and drill bits and screwdriver bits are handy too.  ;)
Could get away with just a hand-held circular saw instead or a table saw, but long straight cuts are tricky.

Building from scratch be prepared to make a lot of sawdust.  :)

Google search "combo amp cabinet design" for ideas.

Edit; Check this thread.  http://music-electronics-forum.com/t9746/

Some of the links are bad but the first post has plans....
If it ain't broke I'll fix it until it is.

No6h

Hi. I have a friend who is a cabinetmaker and I just wanted to send him some plans...

No6h

Just a question... where would be the best place to get a 2 layer 4x2" pcb in low volume? Thanks. I think I might learn to make layouts on simpler designs first.

J M Fahey

Quote from: No6h on August 05, 2015, 12:03:58 AM
Just a question... where would be the best place to get a 2 layer 4x2" pcb in low volume? Thanks. I think I might learn to make layouts on simpler designs first.
The first which jumps to mind (and in google)  is Express PCB, which offers you free software (very good and quick to learn) and then can give you 3  double face 3.8"x2.5" (your design on their software) for $51 + shipping.
http://www.expresspcb.com/pcb-manufacturing/

Chinese suppliers can offer quite lower rates *but*  you must get and learn your own software, usually more complex than EPCB so you can send them the necessary files, EPCB is designed so only themselves "understand" it.

Personally I'd learn to etch PCBs at home, get a kit including chemicals, a small etching tray and often a few pieces of precut board at Radio Shack or similar.
You can work in the kitchen or bathroom, and start by doing simple face ones, hugely simpler to make.
Even important makers (think Peavey/Fender  :o) go simple face , route as much as possible "below" and place wire links on top for the few they can't avoid.
Look at this huge all in one Peavey Bandit board, single face, I can count 12 silver wire links on top, maybe there's more.


Start practicing with some of the projects shown in the Pedal Forums, even a Ruby or something.

There's even a technique to make simple PCBs "transfering" photocopied (or hand drawn)  designs to copper using a needle and a Sharpie pen; I do that , even today, for very simple designs.

I'd go step by step: Sharpie > iron on > EPCB > any software, any commercial supplier.



phatt

I'm with Mr Fahey,,, double sided PCB for a 1 watt amplifier is way over kill. :lmao:

If you have a *Laser* printer I can show you a dead simple way to make your own single layer pcbs.
I have done my own boards for quite a few years now,, no photo developing just some free PCB design software and borrow mums iron for a few minutes.

The hardest part is learning how to design smart pcb layout and maybe at the other end the drilling can be an issue unless you have a dremel type tool.
You do need to have a delicate touch when working with fine tools, 1mm drill bits break easy if you are rough.
Just google something like "DIY laser printed PCB" will give you some idea.
Try these links
http://www.riccibitti.com/pcb/pcb.htm

or how about a video

https://www.youtube.com/watch?v=wKEe3otWstM

I do not recommend using the enchant scrubbing process shown in the video very messy,, better to lay it in an open tub and gently swish, I use Ice cream buckets.
(Enchant still works cold just takes a lot longer to work)
Phil.