Off the Bench !
"The cherries make it really even more special! Great project with a unique and special result!"
#1 resource for Cigar Box Guitars, Free Plans, How-To, Parts & More!
LED hookup
I just finished a couple of Cigar Box amps. Everything went well until I soldered the LED leads. I bought 2 prewired kits from Gitty. I checked the the leads with an ohm meter and had good continuity from the circuit board to the ends of the lead. Neither one of the LED's lit up when I turned on the switch. The amps both work well although not to loud. I can't figure out why the LED's don't lite. Take a look at the picks. Any help would be great
Replies to This Discussion
-
Permalink Reply by JL on
-
you had it right: depending on the the LED type, it will operate at a voltage drop of anywhere from 1.7v for dim red LEDs to 4.5v for bright white LEDs (check your spec sheet) and you need the resistor to drop the rest of the voltage (wired in series) or else you get a wonderful one-shot flashbulb-LED and then all the magic smoke will leak out.
-
Permalink Reply by John Sawyer on
-
A lot of LED's have a flat spot next to one leg. That's the Cathode. I could never remember what that meant until somebody pointed out that Cat's are negative... So Flat spot to ground.
John
Cool Amp!
-
Permalink Reply by Thomas "Duck" Petry on
-
Just as an added note, though they are cheap you can salvage LEDs out of old junk appliances and save some change.
- ‹ Previous
- 1
- 2
- Next ›
The Essential Pages
Recommended Links & Resources
- CigarBoxGuitar.com - the knowledgebase of the homemade music movement.
- Cigar Box Music - How-to-Build CBGs DVDs, How to Play CBG and more!
- 3-String-Guitar.com - John "Red Dog" McNair's unique take on cigar box guitars and their history - lots of historic photos!
- The Cigar Box Guitar Manifesto - the mission statement and rallying cry for the Cigar Box Guitar Revolution.
Forum
UK - Best Place to Buy Cigar Box's
Started by Rich Butters in Building Secrets, Tips, Advice, Discussion. Last reply by Crazed Fandango 5 hours ago. 1 Reply 0 Likes
Busking Songs...
Started by Nomad Jack in Performances, How to Play, Lessons, Concerts. Last reply by J. D. Woods yesterday. 7 Replies 2 Likes
Joseph J. Rogowski about Current Based Pickup Design
Started by Moritz Voegeli in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray on Monday. 6 Replies 2 Likes
crossover guitar.
Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter Apr 10. 14 Replies 3 Likes
Flat bucker under box top. Any Success?
Started by Tom T in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 9. 9 Replies 0 Likes
Has anyone tried this? Thoughts?
Started by Southern Ray in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 4. 7 Replies 1 Like
just came accross this pickup idea on youtube.
Started by Timothy Hunter in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 27. 1 Reply 2 Likes
VIDEO: Building a CBG with limited resources.
Started by Taffy Evans in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 10. 1 Reply 3 Likes
Free PDF Download: Vintage Guitar Effects Plans - 1967 Fuzzbox and 1969 Treble Boost
Started by Cigar Box Nation in Feature Articles. Last reply by BrianQ. Mar 9. 4 Replies 3 Likes
Tune up songs
Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies 1 Like
Duel output jacks
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies 0 Likes
No Harmonics
Started by Ken I in Building Secrets, Tips, Advice, Discussion. Last reply by Brian partington Mar 8. 8 Replies 0 Likes
Camera suggestions?
Started by Southern Ray in Cool gear discussion - that's not cigar box related. Last reply by Southern Ray Mar 6. 5 Replies 0 Likes
CBG site issues, continued.
Started by Taffy Evans in Other stuff - off topic, fun stuff, whatever. Last reply by Taffy Evans Mar 5. 4 Replies 2 Likes
Anyone used a violin-style tailpiece on a CBG?
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Carl Floyd Mar 1. 15 Replies 0 Likes
Guitar for the grandson
Started by Joe in Performances, How to Play, Lessons, Concerts. Last reply by Carl Floyd Feb 29. 13 Replies 0 Likes
Building with vintage paper/pressed board cigar boxes.
Started by Chance in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Feb 22. 12 Replies 1 Like
How to Get Your Own Music on Spotify
Started by Cigar Box Nation in Feature Articles. Last reply by Southern Ray Feb 21. 2 Replies 4 Likes
Trash Canjo
Started by Brad in Cool gear discussion - that's not cigar box related. Last reply by Southern Ray Feb 19. 6 Replies 3 Likes
Do Measurements Matter?
Started by Jacob Shook in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Feb 16. 10 Replies 0 Likes
Blog Posts
I'll be fashionable this summer =)
Posted by Vlad on March 31, 2024 at 11:48pm 0 Comments 1 Like
Everyone can make CBG. And I did it =)
Posted by Vlad on March 6, 2024 at 2:32am 5 Comments 2 Likes
.✨. Cover Me ..♪♫•*¨*•. ~ the Delta Blues Outlaws
Posted by billy jones bluez on February 28, 2024 at 2:09pm 0 Comments 0 Likes
Q&A with Arkansas-based talented blues musician Billy Jones, one of the very best authentic modern artists
Posted by billy jones bluez on February 17, 2024 at 11:00pm 0 Comments 0 Likes
Big Power Bank for Small CBG =)
Posted by Vlad on February 11, 2024 at 1:06am 1 Comment 1 Like
Latest Activity
UK - Best Place to Buy Cigar Box's
Hi all, I am living in Thailand and building CBGs for about a year. I will be returning to the UK…See More
Up the Hill A D Eker 2024
"thanks kale !yup that shaker sure keeps the groove going , and this LACE is my fender in the CBG…"
Off the Bench !
"A while in the making, But!, well worth the wait, another outstanding one off Randy Bretz Build,…"
CigarBoxGuitar.com Knowledgebase Articles
Events
Music
© 2024 Created by Ben "C. B. Gitty" Baker.
Powered by
