A friend gave me this and I know very little about any of this - I don't seem to be able to get it to work but don't really know where to start.

Views: 296

Reply to This

Replies to This Discussion

Looks like a basic pre-amp from a CV acoustic electric. The battery is likely underneath the front control panel, accessed by unscrewing the two black knobs top & bottom of panel. Need a fresh battery to get it working. Then check to make sure all soldered parts are good, and it should work fine.

Thanx Scott - I'll give that a whirl !! :-)

The tell tale sign that there is a battery is the LED.

Yep - sure enough - buried down in there was an old dead battery - plus, I don't know I would have recognized those knobs as knobs - thanx !!!

It also probably won't work until there's a pin from a cable plugged in the jack there.
+10 for the bits of guitar still screwed to it

Well, there are two wires plus the ground coming from the jack - I didn't have a battery so I hooked up to a wall wart with a 9v adapter and tempo'ed a saddle with the rod on a CBG and gave it a go - real bad hum so I guess I'm not out of the woods yet.

Did you get any sound from the piezo or just hum? The wall wart may be introducing the hum - a battery wouldn't have this problem.
Might have flipped the phase on the power too, remember this is direct current. Because the (-) side is sent thru the ground side of the jack for switching it off, I imagine putting the battery in backwards (which you cannot normally do because of the keyed form factor) would create howls for sure....

Yeah, I'm hoping it is because of the wall wart - but I don't have a battery right now - when I switch polarity it doesn't work (no led).

It seems to work, just very loud hum along with the amplification - I'll search around for a battery.

Thanx all.

try flipping the phase from this wall wart if you can, maybe a huge improvement ;)

Do you mean that I should turn the wall wart around ??  It has a polarity switch that when I switch the polarity the EQ doesn't work at all. I'm not sure I'm understanding the terminology.

Well I wouldn't turn it around in the wall socket, that's dangerous..
But maybe clip the low voltage wires coming out and flip em yeah...

A lot of the ones I have interchangable connectors for the end, and they can be connected up to the adaptor in Either phase just by turning that connector over..

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 Basics

Site Sponsor

Recommended Links & Resources


Forum

crossover guitar.

Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter Mar 21. 11 Replies

Tune up songs

Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies

Duel output jacks

Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies

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

CB Bass Guitar

Started by Mi Rankin in Building Secrets, Tips, Advice, Discussion. Last reply by Justin Stanchfield Jan 27. 5 Replies

Latest Activity

A.D.EKER commented on A.D.EKER's video
Thumbnail

Im Troubled (Tribute) Mc K Morganfield by BCB - A.D .Eker 2024.

"Thank you Poorness ! for loving it ! appreciated!"
13 hours ago
Southern Ray replied to Timothy Hunter's discussion just came accross this pickup idea on youtube.
" Very interesting. Thank you Timothy!"
13 hours ago
Kent Thurston updated their profile
14 hours ago
Southern Ray posted a photo

Punch Project!

She now sports gold metal CBGitty knobs, speaker and an Artec 2.5 watt speaker. Finished this in…
15 hours ago
Southern Ray posted a photo

Project Punch!

Gonna finally get back on this long-delayed project that is more than half complete. (The matching…
15 hours ago
Poorness Studios liked A.D.EKER's video
17 hours ago
BrianQ. left a comment for Rob (Uker) Porras
"Hope this helps?"
17 hours ago
Doug Thorsvik commented on Doug Thorsvik's photo
Thumbnail

Dueling Flatheads

"I appreciate the kind words Papa D! I have always loved the look of these cigar boxes. Glad to have…"
19 hours ago
A.D.EKER commented on A.D.EKER's video
23 hours ago
A.D.EKER posted a video

Im Troubled (Tribute) Mc K Morganfield by BCB - A.D .Eker 2024.

The recorded History By Alan Lomax for the library of Congres of the Blues, from Mc Kinley Morganfield (Aka Muddy Waters) the in this take recorded Tribute ...
23 hours ago
Papa D commented on Doug Thorsvik's photo
Thumbnail

Dueling Flatheads

"Beautiful..Nice work Doug.."
yesterday
Papa D commented on Papa D's photo
Thumbnail

american1 Sun Glo

"Thanx AGP & Doug..  4 more coming soon"
yesterday

Music

© 2024   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 -->