60s Lacquer Sympathetic Vibration Troubles

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Stevenlaumer
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60s Lacquer Sympathetic Vibration Troubles

Post by Stevenlaumer » Thu Apr 12, 2018 4:27 am

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Last edited by Stevenlaumer on Tue May 01, 2018 6:14 am, edited 1 time in total.

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MKR
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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by MKR » Thu Apr 12, 2018 6:10 am

ummmm.... i didn't really notice anything off-putting or bad.

i think that might be the harmonics that happen from the tremolo to behind the bridge. said harmonics are definitely more noticeable on jags and JMs that have the traditional tremolo location such as yours.

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Stevenlaumer
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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by Stevenlaumer » Thu Apr 12, 2018 6:13 am

MKR wrote:
Thu Apr 12, 2018 6:10 am
ummmm.... i didn't really notice anything off-putting or bad.

i think that might be the harmonics that happen from the tremolo to behind the bridge. said harmonics are definitely more noticeable on jags and JMs that have the traditional tremolo location such as yours.
Its the high pitch whining/feedback like thing going on. It's definitely a new thing. It did not happen before the set up, and when I try and play it out, it quickly becomes way too annoying to use.

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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by andy_tchp » Thu Apr 12, 2018 2:32 pm

That does sound weird.

Roll the volume back a touch to '8' or so. If this kills it off I'd go back to the 500K pots.
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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by Stevenlaumer » Thu Apr 12, 2018 2:36 pm

andy_tchp wrote:
Thu Apr 12, 2018 2:32 pm
That does sound weird.

Roll the volume back a touch to '8' or so. If this kills it off I'd go back to the 500K pots.
That was the first thing I checked. Still happens with the volume turned out. It even does it acoustically/not plugged in.

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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by oid » Thu Apr 12, 2018 4:32 pm

Turning the volume down does not make it act like a lesser value pot, it still see a it as 1 meg.

It really sounds like a microphonic tube, when you say it happens on many amps does that mean every amp you have tried or just some?

Otherwise it is a microphonic pickup, both you test for in the same way flick the pickup/tube with your finger, do you get that sound?

Sounds more like a tube though.

Turning down the volume is not the same as a lower value pot, the pickup still sees the full load, the amp sees it more or less that way though. My guess is your inceased high end is aggravating the microphonic tubes you never realized you had.
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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by marqueemoon » Thu Apr 12, 2018 9:01 pm

If it happening unplugged and also with a capo I suspect it's somewhere from the bridge back. Maybe something rattling in the trem ? Try having someone mute each string behind the bridge and touch the trem plate with their finger while you strum.

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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by sunburster » Tue Apr 17, 2018 8:59 pm

Get an AVRI tremolo unit and sell the junky one that came with your 60s lacquer.

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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by -=Todd Fox=- » Tue May 01, 2018 6:01 am

Looking at the video, it seems that the bridge pickup is really near to the problematic strings. Does the issue go away if you lower that side of the pickup a little?
if you mute the B and E behind the bridge does it still happen?
Last edited by -=Todd Fox=- on Wed May 02, 2018 4:27 am, edited 1 time in total.
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Re: 60s Lacquer Sympathetic Vibration Troubles

Post by -=Todd Fox=- » Tue May 01, 2018 6:07 am

sunburster wrote:
Tue Apr 17, 2018 8:59 pm
Get an AVRI tremolo unit and sell the junky one that came with your 60s lacquer.
Sometimes, I swear that's the answer to everything on this forum. :P
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