5B0E7101-0595-4561-918A-4348AE6C3AA1.jpeg
The speaker in the pic is from my work. They were switching out PA speakers and let me have one; they were pitching them anyway. On the left you’ll see a coil of copper wire. Can a person make a pup out of that? I’ve seen a couple of vids or guys making a pup out of a copper wire coil in a wall wart. Can the same be done with what I found on that speaker? And where would I find instructions? Thanks!
Tags:
you could use the wire but i doubt the coil as it is is of any use. Its a 100V line PA speaker. audio output from an amp is fed into a transformer and sent down a pair of wires. as many speakers as you want can be used as long as the are less in total wattage than the amp used. at the speaker the 100V is transformed down by the local transformer to an 8 ohm low wattage to drive a speaker.
you could strip the wire out of the transformer and wind your own coil around a magnet and custom make a pickup. heaps of youtube videos on pickup winding.
https://www.youtube.com/watch?v=hsZb2pzzyy0
https://www.youtube.com/watch?v=wKS0ZWCHI4g
https://www.youtube.com/watch?v=KPvIYBYeZ7k
just a few random examples......
Some people use smaller speakers as pickups in foot stompers, but I suspect that that wire is a bit too thick for a conventional pickup, that looks to be 2-3 times the size of the standard 42awg pickup wire? That particular model is a 25v transformer & is actually being used to protect the speaker from the voltage going through it? FYI Rauland made PA & Intercom systems for offices, hospitals & transportation terminals? I would pop that in an amp, it’s hard to get vintage speakers in that condition so cheaply these days?
Is the speaker marked with the impedance?
Right, in an ordinary low wattage amp you don’t need it, but it’s necessary if you’re going to add an External speaker Jack to the amp?, because there will be a need for voltage to drive the extra speakers? What’s the power rating on the speaker?
I've messed with these types of things a bit back in the day . it looks doable . and its easy to test . unscrew the thing . cut the wires at the speaker tab . plop an earth magnet on it bare the wire ends and attach a cord or jack."even temporary" and plug into an amp. . hold the thing over top of an existing guitar , strum the strings . and you will know .
and you might have a huge madmax looking pickup that probably has a bunch of noise and hum .. but might look cool.
and you still have a cool usable vintage speaker.
Or ... you could try and take it all apart , to salvage the wire alone . but I am reminded of the guy that built a doghouse to hide in... to avoid building a bird house for his wife. lol .. alot more work for less than impressive results ,, compared to the cost of a spool of wire .
but wheres the fun in that ;-)
yes you can use the speaker without the transformer. just cut the two copper wires coming from the transformer to the speaker tabs and unscrew the transformer from the speaker.
the speaker is just a normal 8 ohm speaker the transformer is there to reduce the 100V line to what the speaker can handle. the impedance of the output of the transformer will be 8 ohm to match the speaker.
You could buy a pre-wired artec 2.5watt amp board,? All it needs is an enclosure & speaker? I have watched plenty of those “for dummies” videos & most of them are made by “dummies” who also don’t know what they’re doing, so beware? Also, impedance can be easily tested with a multimeter? That black mark on the rivet may be a polarity marker? (Black is Negative)
a multimeter will only give you the DC resistance of the voice coil. Impedance is an AC thing .music/sound is an AC signal....
DC resistance will probably be around 6 Ohms. 6.8 for an 8 Ohm impedance speaker if i remember correctly.
for a first amp you are definitely better off with a kit module where all you need to do is add a input jack a speaker and power. CB Gitty sells a kit i think. you can use your speaker just fine.
to find correct polarity of the speaker connectors use a AA battery try negative on one connector and tap the other connector with a wire. if the speaker cone moves forward ie out of the frame then that is the positive connector and the other is the negative. of course the opposite if the cone moves in to the frame. just don't hold the battery on the contacts too long or you could burn out the voice coil.
Started by Bill Andy in Performances, How to Play, Lessons, Concerts. Last reply by Southern Ray May 7. 11 Replies 0 Likes
Started by Bill Andy in Performances, How to Play, Lessons, Concerts. Last reply by Taffy Evans May 5. 6 Replies 0 Likes
Started by J. D. Woods in Performances, How to Play, Lessons, Concerts. Last reply by Southern Ray Apr 26. 8 Replies 1 Like
Started by Southern Ray in Other stuff - off topic, fun stuff, whatever. Last reply by Southern Ray Apr 26. 6 Replies 0 Likes
Started by J. D. Woods in Performances, How to Play, Lessons, Concerts. Last reply by BrianQ. Apr 25. 4 Replies 0 Likes
Started by Rich Butters in Building Secrets, Tips, Advice, Discussion. Last reply by Crazed Fandango Apr 22. 4 Replies 0 Likes
Started by Nomad Jack in Performances, How to Play, Lessons, Concerts. Last reply by J. D. Woods Apr 17. 7 Replies 2 Likes
Started by Moritz Voegeli in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 14. 6 Replies 2 Likes
Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter Apr 10. 14 Replies 3 Likes
Started by Tom T in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 9. 9 Replies 0 Likes
Started by Southern Ray in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 4. 7 Replies 1 Like
Started by Timothy Hunter in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 27. 1 Reply 2 Likes
Started by Taffy Evans in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 10. 1 Reply 3 Likes
Started by Cigar Box Nation in Feature Articles. Last reply by BrianQ. Mar 9. 4 Replies 3 Likes
Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies 1 Like
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies 0 Likes
Started by Ken I in Building Secrets, Tips, Advice, Discussion. Last reply by Brian partington Mar 8. 8 Replies 0 Likes
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
Started by Taffy Evans in Other stuff - off topic, fun stuff, whatever. Last reply by Taffy Evans Mar 5. 4 Replies 2 Likes
Posted by Vlad on March 31, 2024 at 11:48pm 0 Comments 1 Like
Posted by Vlad on March 6, 2024 at 2:32am 5 Comments 2 Likes
Posted by billy jones bluez on February 28, 2024 at 2:09pm 0 Comments 0 Likes
Posted by billy jones bluez on February 17, 2024 at 11:00pm 0 Comments 0 Likes
Posted by Vlad on February 11, 2024 at 1:06am 1 Comment 1 Like
© 2024 Created by Ben "C. B. Gitty" Baker. Powered by
Cigar Box Nation is presented by C. B. Gitty Crafter Supply, your one-stop-shop for Cigar Box Guitar parts and accessories!