OR 120 feedback

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Mika Koffin
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Post by Mika Koffin » Mon Mar 02, 2009 10:21 am

Hi!
Ive´got lots of feedback comming out from my OR120. The feedback starts bit befor a half volume. When i´m using distortion (Pro Co Deucetone), feedback strats to be insane...any recommendation?
Thänx!

vettahead
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Post by vettahead » Mon Mar 02, 2009 10:22 am

tubes need replacing? ?

Mika Koffin
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Post by Mika Koffin » Mon Mar 02, 2009 10:28 am

U mean preamp tubes?
Cause i´ve got new EL34 EH inside...and old preamp tubes...

vettahead
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Post by vettahead » Mon Mar 02, 2009 10:33 am

is it feedback of like a whining sound? high pitched, sounds like a valve issue to me turn iit on and loo at the valves and see if ones a lot brighter than the others

Mika Koffin
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Post by Mika Koffin » Mon Mar 02, 2009 10:47 am

ok will look at it...anyway i am bit sad of it...

Mika Koffin
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Post by Mika Koffin » Mon Mar 02, 2009 12:08 pm

its a natural feedback, but comes to early... : /

Taronja
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Post by Taronja » Mon Mar 02, 2009 12:14 pm

could just be your guitar pick-ups.

you ever try a different guitar?

Jon
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Currently a non orange owner. Im actively in search of a vintage OR head... Feel free to send me any leads... :)

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Mika Koffin
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Post by Mika Koffin » Mon Mar 02, 2009 12:16 pm

no, play just my SG with Di MArzio Super distortion at bridge possition

Taronja
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Post by Taronja » Mon Mar 02, 2009 12:17 pm

try another guitar, sometimes it can be a bad pick-up causing un-controlled feedback.

Jon
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Member since 2005
Currently a non orange owner. Im actively in search of a vintage OR head... Feel free to send me any leads... :)

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Le Chat Noir
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Post by Le Chat Noir » Mon Mar 02, 2009 1:41 pm

Yeah it could be a microphonic pickup...
Teddy
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a.hun
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Post by a.hun » Mon Mar 02, 2009 4:32 pm

Easy enough to check for microphonic valves...
TAP TEST.


Andy.
aNDyH. :wink:

Ever tried to outstare a mirror?

In the bathtub of history the truth is harder to hold than the soap, and much more difficult to find!

somedude
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Post by somedude » Mon Mar 02, 2009 5:19 pm

I'd try swapping preamp tubes one at a time to see what happens.

Beyond that, I have a microphonic Super Distortion myself. It squeels when the amp's volume gets too high. The soloution is to either re-pot it (Google search the proceedure), or replace it.

Les Paul -> Electric Amp 120w MV* -> Electric 4x12 + Orange 4x12

* or a 2-ch Dual Rectifier.. depending on how I feel.


Knuckle Bones
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Post by Knuckle Bones » Mon Mar 02, 2009 5:37 pm

I'm betting on the pick ups being the problem on this.
“It's amazing what new strings and a cold beer can do for your toneâ€

Mika Koffin
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Post by Mika Koffin » Tue Mar 03, 2009 9:16 am

hm...so you think that the pickups should be the main problem? i will try to change the pre amp tubes, then a pick up :)
thx! ;)

a.hun
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Post by a.hun » Tue Mar 03, 2009 1:16 pm

<blockquote id="quote"><font size="2" face="Verdana" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Mika Koffin</i>
<br />hm...so you think that the pickups should be the main problem? <b>i will try to change the pre amp tubes</b>, then a pick up :)
thx! ;)

<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">You don't need to change them to see if they are the problem. Just do the tap test I linked to above.

Yes, microphonic pickups are also a likely cause. But just check the valves first.

It has been asked before but...
Have you tried it with another guitar???


Andy.
aNDyH. :wink:

Ever tried to outstare a mirror?

In the bathtub of history the truth is harder to hold than the soap, and much more difficult to find!

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