I'm building a Combo Amp for someone.

The cabinet is Pine 13" wide x 15" tall and 11" deep. All glued together and used a 1/2" roundover bit in my router for the edges.

The speaker is a vintage 10" Utah 15W 8ohm. The amp is my dual Im386 chip bridged amp design. Can run on 9volt battery or walwart and output is 1 to 2 watts.

Views: 2411

Replies to This Discussion

If you want a open back or a closed back, you can have either one you want.

Thanks, I'm glad to get it done.

Almost every guitar and CBG played with this amp comes out sounding very bright. Guessing it's the speaker that is doing that because the original/first amp that I made was used with a different speaker and was less bright sounding.

Thinking of adding a tone pot to take away some of the brightness if that is wanted. I'll give it a try out this week.

The speaker has a break in time period and might get a little darker later, but a tone pot would still be a good idea if it works okay.

The tone circuit helped tame the brightness a tad. I had 2 choices, put a tone pot in before the signal got to the chips or put 2 tone pots on the output lines that would probably mess with the volume too much. So I chose to put it in before the signal gets to the chips.

Drew out the new schematic.

RSS

The Essential Pages

New to Cigar Box Nation? How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building BasicsCigar Box Guitar Parts Store

Site Sponsor

Recommended Links & Resources


Discussion Forum

LM386 Amp w/ Switchable Clean Channel

Started by BrianQ.. Last reply by BrianQ. May 28, 2021. 1 Reply

Simple 1st Timer CBG Amp

Started by BrianQ.. Last reply by BrianQ. Sep 28, 2020. 25 Replies

Matching Speakers to LM386

Started by Southern Ray. Last reply by Southern Ray Aug 6, 2020. 11 Replies

Suggestions wanted for easy amp build

Started by Southern Ray. Last reply by Southern Ray Jun 16, 2020. 11 Replies

Ruby Amp

Started by BrianQ.. Last reply by Southern Ray May 17, 2020. 27 Replies

Low-Z pickup and components values

Started by Southern Ray. Last reply by Southern Ray May 13, 2020. 6 Replies

Oops

Started by Southern Ray. Last reply by Southern Ray May 3, 2020. 12 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

Latest Activity

t-belly johnson commented on bemuzic's video
2 hours ago
t-belly johnson liked bemuzic's video
2 hours ago
t-belly johnson liked Poorness Studios's video
2 hours ago
t-belly johnson commented on Poorness Studios's video
Thumbnail

Got My Mind Set on You (cover on acoustic guitar)

"Crackin` tune, crackin` cover! One of the first records I ever bought was George Harrisons.....I…"
2 hours ago
Rich commented on Rich's video
Thumbnail

Justin Johnson for RTL guitars

"Thanks, Doug. and Uncle John. and Poorness. and A.D. This man has magically gifted fingers."
2 hours ago
MadGomer replied to Paul Craig's discussion What's on your workbench?
"Unfortunately just the box!"
3 hours ago
Uncle John commented on Jim Winslow's photo
Thumbnail

AE95D060-5748-404C-A63A-F81FC026AAB5

"Oh yeah!  Very nice looking sixer."
5 hours ago
Uncle John commented on Jim Winslow's photo
Thumbnail

509D8F2B-B281-484A-88A7-468F8B08AFF2

"Nice shape and color.   Cool room too."
5 hours ago
Uncle John commented on Jim Winslow's photo
Thumbnail

84F0A114-F256-4837-9903-3DAC2847DE77

"Mighty good makings.  Nice box!"
5 hours ago
Uncle John commented on A.D.EKER's video
Thumbnail

Give me all your Loving A .D. Eker 2022

"Good, good and getting side ways - at least in your pic.   I think one of my sons and his…"
5 hours ago
A.D.EKER commented on A.D.EKER's video
Thumbnail

Give me all your Loving A .D. Eker 2022

"   i am the DutchGuy  Born and Raised !     Gets the Blood Pumping !!"
5 hours ago
A.D.EKER posted a video

Give me all your Loving A .D. Eker 2022

a Ode to the Old Rockers ZZTop, Status Quo, Led Zeppelin, Tod Rundgrun, ACDC, who where not afraid to shout out, what the state off affair was at the time...
5 hours ago

Music

© 2022   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->