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Hoffman Amps Forum image Author Topic: Microphonic pickup issue  (Read 5667 times)

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Offline 1blueheron

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Microphonic pickup issue
« on: January 25, 2021, 08:30:49 am »
My son and I have been building a custom body guitar.  After installing the electronics, it is extremely sensitive to any vibration, even without strings installed.   Touching or tapping the body of the guitar is transmitted directly to the amp.   Any ideas on how to approach this?   The pickup is a humbucker that came from a donor Yamaha guitar which seemed to be functioning fine before we broke it down into parts.

Offline jjasilli

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Re: Microphonic pickup issue
« Reply #1 on: January 25, 2021, 01:37:11 pm »
Maybe this will help:  http://www.strangeguitarworks.com/wax-potting-microphonic-pickups/


(FWIW: I once tried wax potting cheapo Hondo PU's; but it didn't work.)

Offline Latole

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Re: Microphonic pickup issue
« Reply #2 on: January 29, 2021, 02:49:50 am »
If pickup was functioning fine on the Yamaha guitar, I can't understand why it need wax potting now.

Chance is more you have a wiring issue; a ground is missing.
 
Post picture of wiring / electronics

A microphonic pickups make noise / feedback a high volume, not like you say
« Last Edit: January 29, 2021, 02:55:20 am by Latole »

Offline pdf64

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Re: Microphonic pickup issue
« Reply #3 on: January 30, 2021, 04:04:48 am »
Have strings been fitted to the guitar yet?

If not, do so and re-asses; it’s probably fine.
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Offline Latole

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Re: Microphonic pickup issue
« Reply #4 on: January 30, 2021, 06:13:37 am »
Chance is more you have a wiring issue; a ground is missing.

Or positive + and ground are reverse somewhere.

Offline Colas LeGrippa

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Re: Microphonic pickup issue
« Reply #5 on: February 08, 2021, 08:24:06 am »
You might have connected the gnd from the pots to the "+" of the input jack ( or somewhere else )
Don't miss the Woodstock experience : ''FORTY YEARS AFTER'' at Club Soda,  in Montreal, august the 17th and 18th and october the 27th. Fifteen musicians onstage.  AWESOME !
P.S.: call me Alvin.

Offline Latole

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Re: Microphonic pickup issue
« Reply #6 on: February 10, 2021, 03:23:04 am »
One post and no return since 16 days !

Offline Colas LeGrippa

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Re: Microphonic pickup issue
« Reply #7 on: February 10, 2021, 08:44:21 am »
Yep. Maybe he caught the virus or got shot in a bank or died in a plane crash...



Don't miss the Woodstock experience : ''FORTY YEARS AFTER'' at Club Soda,  in Montreal, august the 17th and 18th and october the 27th. Fifteen musicians onstage.  AWESOME !
P.S.: call me Alvin.

Offline Colas LeGrippa

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Re: Microphonic pickup issue
« Reply #8 on: February 10, 2021, 08:47:07 am »
Got it :  some aliens took him away in their flying saucer and the internet is out aboard
Don't miss the Woodstock experience : ''FORTY YEARS AFTER'' at Club Soda,  in Montreal, august the 17th and 18th and october the 27th. Fifteen musicians onstage.  AWESOME !
P.S.: call me Alvin.

Offline shooter

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Re: Microphonic pickup issue
« Reply #9 on: February 10, 2021, 10:25:08 am »
I'm going with committed suicide waiting on hold to talk with another human  :dontknow:
Went Class C for efficiency

Offline Colas LeGrippa

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Re: Microphonic pickup issue
« Reply #10 on: February 10, 2021, 11:49:59 am »
 :laugh:
Don't miss the Woodstock experience : ''FORTY YEARS AFTER'' at Club Soda,  in Montreal, august the 17th and 18th and october the 27th. Fifteen musicians onstage.  AWESOME !
P.S.: call me Alvin.

 


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