Home Made Guitar Amps


Home Made Guitar Amps

This is a group for home made guitar amps.

Members: 246
Latest Activity: Jan 16

Discussion Forum

Ruby Amp

Started by BrianQ.. Last reply by Paul Craig Nov 28, 2019. 13 Replies

Please respect my work & Do Not Repost them on any other sites…Continue

DIY Spring Reverb

Started by Kevin Keating. Last reply by Paul Craig Oct 17, 2019. 4 Replies

I've just built my first CB amp.  It's a simple 2.5 watt Artec circuit w no reverb.  I recently saw a pic on here of a CB guitar with springs literally mounted inside the body of the guitar to give a…Continue

Converting a cassette player/radio--where do I start?

Started by Andy Busch. Last reply by BrianQ. Aug 23, 2018. 3 Replies

Hi! I bought an old cassette player/radio at an estate sale (really cheap!) and I'm wondering where/how I start in converting it into a guit amp. I've seen a few vids of some Australian (?) cat doing…Continue

Quick and easy way to build a great sounding small amp

Started by Henry S. Last reply by Paul Craig Jul 24, 2017. 3 Replies

I have not posted here in a million years -- been off in Google groups, but last night I had a great time when I surprised a good friend by giving him one of a pair of resonator CBGs I had built. The…Continue

Comment Wall


You need to be a member of Home Made Guitar Amps to add comments!

Comment by BrianQ. on May 17, 2019 at 12:58am

Pretty simple, straightforward LM386 based amp, all 9 volt versions of the opamp will work, try the 12 volt version for more headroom & clarity, but beware the 9 volt version will doesn’t like 12 volts....... will also drive a speaker cab just like the Smokey! Enjoy :)

Comment by Paul Craig on November 21, 2018 at 6:10pm

Yeah the Ruby is based on the Lil' Gem amp and the Ruby can use a 4ohm or 8ohm speaker(4ohm sounds a bit louder, but it pushes the chip more). The big difference between the 2 amp circuits is the JFET filter in the input circuit. The Ruby shows a MPF102 JFET, but you can use a 2N5457 JFET instead. Just depends on which one you like better.

I also use a 3-way toggle switch on/off/on in the input circuit with 2 different value caps(.047 & .1) so I can get darker tones with guitar or play bass with the .1 cap. The off center just acts as a kill switch/no signal.

Comment by BrianQ. on November 19, 2018 at 12:18pm
Comment by Paul Craig on November 3, 2018 at 12:35pm

I haven't had email in a week so I missed this. When it comes to the 386 chip, I prefer the Ruby Amp because of the input filters and interactive volume and gain pots.

Then I got to playing around with another build and added a tone circuit. Then I added a second chip and bridged them for a 2watt amp that you could say is just a distortion box op-amp.

Comment by BrianQ. on October 25, 2018 at 1:53am

Just regurgitating something I posted some years ago,maybe wake up this group 

Comment by Paul Craig on August 24, 2018 at 9:21am

I've got a Tube amp in need of a re-cap and another that needs to be rebuilt and converted into a guitar/bass amp from a turntable amp, but I haven't stopped guitar projects long enough to do them yet. Hopefully I can start on them soon. 

Comment by BrianQ. on August 23, 2018 at 3:21pm

Anybody make any amps lately? Anybody build em from scratch?

Comment by Paul Craig on May 10, 2018 at 1:36pm

Nice looking little amp you got there Jeff.

Comment by Jeff 'Bones' Reilly on May 9, 2018 at 5:32pm

Looks like I’ve got me a little traveler amp .... 

Comment by Paul Craig on February 25, 2017 at 3:36am

When I made my dual chip amp, the 220uf caps on the output line was too bright. I ended up using 10uf caps to tame down the brightness. So try the 10uf cap.


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Discussion Forum

Ruby Amp

Started by BrianQ.. Last reply by Paul Craig Nov 28, 2019. 13 Replies

DIY Spring Reverb

Started by Kevin Keating. Last reply by Paul Craig Oct 17, 2019. 4 Replies

TDA2030A Amp

Started by Bama Hound. Last reply by Gary Stenzel Jul 23, 2017. 14 Replies

Home Brew Champ Tube Amp

Started by Scott aka Farmer Ted. Last reply by Paul Craig Feb 6, 2017. 3 Replies

Dual IM386 Chip amp

Started by Paul Craig. Last reply by Paul Craig Jan 27, 2017. 29 Replies

5 Watt Amp Kit (DIY Case)

Started by Walter Haapapuro. Last reply by Gene Jones Dec 7, 2016. 46 Replies

DIY reverb behold - I found this online

Started by Danny B.. Last reply by Paul Craig Nov 2, 2016. 3 Replies

Bass Cabinet project

Started by Murdoc_420. Last reply by Murdoc_420 Jul 16, 2016. 34 Replies

Kalamazoo Model 1 Deluxe

Started by Scott aka Farmer Ted. Last reply by Rick Alexander Jun 20, 2016. 12 Replies

LM386 amp and other stuff

Started by Denis U. Last reply by Denis U May 29, 2016. 19 Replies

Combo Amp Build

Started by Paul Craig. Last reply by Paul Craig May 27, 2016. 113 Replies

Trying to get a "bigger" sound

Started by Ian Schroth. Last reply by Blind Lemon Cello Mar 16, 2016. 31 Replies

Jana MJ-13400 Public Address amplifier

Started by Monterey. Last reply by Wayfinder Mar 15, 2016. 3 Replies

Mini-amp plans needed.

Started by Rev Mike. Last reply by BrianQ. Jul 4, 2015. 4 Replies

Will this work for an amp?

Started by Monterey. Last reply by Wayfinder May 19, 2015. 4 Replies

Radio conversion too quiet

Started by Slow Slough Guitars. Last reply by wes carl May 10, 2015. 5 Replies


Started by Truth Instruments. Last reply by Truth Instruments Apr 18, 2015. 3 Replies

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