I've jammed amps into a few oddball items now, but this one takes the cake. This was an old dashboard heater. 1 watt circuit using a LM386N-4 op amp chip. Volume and gain. Custom lighting. It kind of sounds too bright though as the shell is plastic. Any suggestions on the best material I could use inside it to dampen and take some of the highs out of it?

Views: 94

Comment

You need to be a member of Cigar Box Nation to add comments!

Join Cigar Box Nation

Comment by Scavanged Sound (Pete) on November 11, 2018 at 12:50pm
I'll try that. Thanks Brian
Comment by BrianQ. on November 11, 2018 at 12:31pm

Yes, I’m familiar with the lil’ gem, I would definitely try to bump up the input cap. Anywhere from .01- 0.1 ? 

Comment by Scavanged Sound (Pete) on November 11, 2018 at 9:07am
It's a 5 component circuit based on the Little Gem. Uses a LM386N-4 chip. The output capacitor is 220uf electrolytic. Input starts at a 0.001 ceramic cap. There is also a 100uf electrolytic in the mix. I can't seem to attach a pic of the circuit here.
Comment by BrianQ. on November 10, 2018 at 5:57pm

You could also bump up the input capacitor? Which circuit did you use? The recessed speaker is acting like a megaphone & projecting the highs? Good luck 

Comment by Scavanged Sound (Pete) on November 10, 2018 at 4:52pm
The speaker is in the only place it could go. I can try a different capacitor, or thinking of placing some foam sheets inside it
Comment by BrianQ. on November 10, 2018 at 11:53am

Bump up the output capacitor or move the speaker closer to the opening?

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

Forum

Nylon Strings

Started by Mark Rinehart in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans 13 hours ago. 2 Replies

Hendrix

Started by Lennox Gavin in Performances, How to Play, Lessons, Concerts. Last reply by Tim Pannabecker Mar 17. 3 Replies

Problem CGB

Started by Thomas Rasmussen in Performances, How to Play, Lessons, Concerts. Last reply by Thomas Rasmussen Mar 14. 18 Replies

South Africa

Started by Marius in Performances, How to Play, Lessons, Concerts. Last reply by the anonymous pick Mar 12. 1 Reply

Blog Posts

Pickup mounting options

Posted by Terry Brennan on March 15, 2019 at 11:27am 6 Comments

Buy, Sell, Trade

Posted by Don Craig on March 12, 2019 at 8:00am 4 Comments

Solar powered guitar amp video

Posted by jeff weins on March 11, 2019 at 4:00pm 4 Comments

String retractor

Posted by Mark Bowen on March 10, 2019 at 10:56pm 1 Comment

Latest Activity

Don Craig liked Mark C's photo
6 minutes ago
Don Craig liked Mark C's photo
7 minutes ago
Don Craig liked Mark C's photo
7 minutes ago
Don Craig liked Mark C's photo
7 minutes ago
Don Craig liked Mark C's photo
7 minutes ago
Calim commented on Calim's photo
32 minutes ago
Calim posted photos
35 minutes ago
Clarky commented on Clarky's video
1 hour ago
Richard Sundberg liked Richard Sundberg's video
2 hours ago
Richard Sundberg commented on Richard Sundberg's video
Thumbnail

The Nationwide DMR Lap Diddley Board

"Thank you Uncle! I sent Dennis a cool YouTube video of a two string Diddley Bow. I asked if he…"
2 hours ago
Casey Smelser updated their profile
2 hours ago
Casey Smelser posted a song

 play WIN_20170321_12_53_26_Pro.jpg

2 hours ago

Music

Loading…

© 2019   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 -->