Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sat Nov 30, 2024 3:17 pm


All times are UTC - 5 hours





Post new topic Reply to topic  [ 17 posts ] 
Author Message
PostPosted: Sat Jan 22, 2011 10:28 pm 
Offline
Cocobolo
Cocobolo

Joined: Sat Jul 17, 2010 8:30 pm
Posts: 170
First name: matthew
Last Name: capeless
I got the 2 pickups and no multimeter. What do you do?

well in my case i held the pickup ground and hot to the jack and pluged it straight into the amp and held my phone to it with a ring tone going off. :mrgreen:

ps: uhh out of curiosity is that healthy for the pickup?


Top
 Profile  
 
PostPosted: Sat Jan 22, 2011 11:21 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
skankstro wrote:
well in my case i held the pickup ground and hot to the jack and pluged it straight into the amp and held my phone to it with a ring tone going off


Genius. Seriously.

skankstro wrote:
I got the 2 pickups and no multimeter. What do you do?


Buy a multimeter, ****!

skankstro wrote:
ps: uhh out of curiosity is that healthy for the pickup?


Not for you.


dang, stop it, please!

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 12:21 am 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Wed Jan 14, 2009 10:11 pm
Posts: 352
Location: muncie IN
First name: shad
Last Name: peters
Focus: Build
my normal way of checking pickups is as chris described, but one nice thing about the multimeter is that you can see if the pickups have been wound to the specs they were supposed to. with higher end pickups its probably not an issue but with the gfs pickups ive been using lately it tends to be more so. my experience with them thus far has been that they are typically under wound a bit, usually between .5k and 1 k. i dont know if that is a standard degree of error between pup companies or not, doesn't seem to hurt anything though. where you can run into trouble is if you happen to get one thats way over wound it will still make noise when you hook it up to an output jack, but it wont sound good once you get it into the guitar.

_________________
~shad peters

http://www.flickr.com/photos/petersinstruments/
http://petersinstruments.blogspot.com/
http://petersinstruments.com/


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 12:53 am 
Offline
Cocobolo
Cocobolo

Joined: Sat Jul 17, 2010 8:30 pm
Posts: 170
First name: matthew
Last Name: capeless
haha well then multimeters are great but i have to stick with the simpler version, cash for fancy is better spent on other stuff :mrgreen:


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 1:44 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Apr 02, 2010 10:35 pm
Posts: 2561
Country: USA
Focus: Repair
Status: Professional
Why did I even read this post? idunno
I want the last minute of my life back, it's wasted forever!

_________________
Old growth, shmold growth!


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 2:05 am 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
skankstro wrote:
haha well then multimeters are great but i have to stick with the simpler version, cash for fancy is better spent on other stuff :mrgreen:


Yhea. I have a good way to spend your money for you.
http://www.stewmac.com/shop/Books,_plans/Electronics/Guitar_Electronics_For_Musicians.html

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 2:16 am 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
You'll learn in that, especially, that pickups are not microphones, but a solenoid that picks up the changes in the magnetic field that is created by the magnet(s) of the pick up, directed by the poles, and disturbed by the vibration of the strings, made of ferrous metals.

That said, you should check the pick up with some ferrous metal thing (something like A GUITAR STRING), and not with the sound of a ringin' phone.

If your pickup have microphonic capacities (it captures acoustic sound) that means the coil is loose, then vibrating, and then that becomes a microphone. That's why coil in a magnetic pick up is always dipped in wax, epoxy or anything like this.

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 9:50 am 
Offline
Mahogany
Mahogany

Joined: Wed Oct 06, 2010 10:26 pm
Posts: 51
First name: Mike
Last Name: D
State: CT
Country: US
Focus: Build
Status: Amateur
haha... seeing how we all know that the pickups are magnetic, why would you be sticking your electronic phone next to it. Glad you didn't report phone problems. Next time do what other recommended like strumming some strings next to it.


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 1:41 pm 
Offline
Walnut
Walnut

Joined: Fri Oct 08, 2010 7:06 pm
Posts: 26
First name: Richard
Last Name: Tester
City: Johnson City
State: TN
Zip/Postal Code: 37604
Country: USA
Focus: Build
Status: Amateur
for what it is worth the above book is a really good thing to have -- Harbor Freight has meters that are as good as my Fluke for about 30-40$ -- When or if my Fluke dies I will go and get one -- If you are going to be working on alot of electric gits a meter is really priceless


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 5:39 pm 
Offline
Cocobolo
Cocobolo

Joined: Wed Jan 30, 2008 2:03 am
Posts: 198
Location: USA
First name: Brett
Last Name: Faust
City: Puyallup
State: WA
Zip/Postal Code: 98373
Country: USA
Focus: Build
Status: Professional
Resitance readings of pickups will vary with room temperature. Don't believe me? Hold one in your hand after measuring the first time as a cold pickup, then measure again after handling a while. Fun at parties laughing6-hehe
Also, all pickups are not potted, old Gibson PAF and P90 pickups are not potted at all but are tightly wrapped with tape. This follows for many repros and variants made by boutique builders as well.
A tap with a screwdriver always worked for me to see if a pickup was live.
I hope that helps.FWIW

_________________
How long is that in luthyears?


Top
 Profile  
 
PostPosted: Sun Jan 23, 2011 5:50 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
Brett L Faust wrote:
Also, all pickups are not potted, old Gibson PAF and P90 pickups are not potted at all but are tightly wrapped with tape.


And those pickups are a bit microphonic, too. Scream in face of those when plugged, and you will ear your voice in the amp. That one reason why the sound of old pickups is so wanted. Sometimes the wax begin to dry out and cracks, or the coil get loose a bit, that brings to the pick ups microphonic capacities, so it captures a bit of the SOUND of the strings, too. I have observed that on a ES335 from the 60's, recently.

Francis

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
PostPosted: Mon Jan 24, 2011 9:59 pm 
Offline
Koa
Koa
User avatar

Joined: Thu Feb 21, 2008 8:57 pm
Posts: 1982
Location: 8.33±0.35 kpc from Galactic center, 20 light-years above the equatorial in the Sol System
First name: duh
Last Name: Padma
City: Professional Sawdust Maker
Focus: Build
skankstro,

you plug the suckers in, turn the volume up to 10
and start bashing them with a hammer or better still a mallet.

When you no longer can hear anything from your amp, you know they are fried.


duh

_________________
.

Audiences and dispensations on Thursdays ~ by appointment only.



.


Top
 Profile  
 
PostPosted: Tue Jan 25, 2011 11:07 am 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
Filippo... You DO have ruler? dang, I guess you're richer than me.

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
PostPosted: Tue Jan 25, 2011 8:18 pm 
Offline
Koa
Koa

Joined: Tue Apr 27, 2010 9:07 pm
Posts: 512
City: Tucson
State: AZ
Country: USA
Focus: Build
Status: Amateur
That bit about the unpotted pickups is interesting. To test if my pickups are hooked up I just crank up the reverb, delay, or gain on my amp (what's today's flavour?...) and tap it with something metal. Sometimes my finger works too. If you feel you need to know your pickups have the specs you're looking for, get a multimeter. But the caveman technique works fine for us amateurs.

I'd definitely keep your phone away from magnets too BTW. :?


Top
 Profile  
 
PostPosted: Wed Jan 26, 2011 2:04 am 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
Makes sense.

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 17 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com