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| | |-+  Upgrading the Choke?		 « previous next »
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Author Topic: Upgrading the Choke?  (Read 5149 times)
Steven_nl
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« on: December 15, 2008, 08:32:44 AM »
Hi Guys

I read a post on the amp garage forum about changing the Choke of the OTS.
"The Ceriatone choke - seen on the photo below - just does have a DC resistance of 30 ohms and an inductivity of about 1.5H - after I've swapped in a Fender choke (022699) w/ a DC resistance of ~100 ohms and an inductivity of about 4H the amp's sound has been much more organic, smoother - the previous rawness almost was gone."

What do you think?  Would it be worthwhile?
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bluegate
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« Reply #1 on: December 15, 2008, 10:21:45 AM »
Hi Steven,

It's a relative cheap and easy mod.
The choke has two wires, that's it...

Dave
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Steven_nl
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« Reply #2 on: December 15, 2008, 10:33:02 AM »
Hi Dave. Yeah looks easy enough (although I keep away from soldering irons myself) but will it make a difference?
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mcinku
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« Reply #3 on: December 15, 2008, 08:28:03 PM »
I saw that post as well and for now, I'm not fixing something which is not broken.
 Wink


...but if you do change it, do let us know what happened.
 Grin
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bluegate
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« Reply #4 on: December 16, 2008, 08:30:13 AM »
The choke tries to keep the voltage/current up when you hit the poweramp hard.
Because its a coil, it will resist changes by fighting it with induction.

Can't tell you what it'll do sonically...
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ic-racer
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« Reply #5 on: December 22, 2008, 03:50:01 PM »
I built my 100w version with an 022699. Looks like Mr.D also used that one in 50W amps like #40.
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Pickmaster
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« Reply #6 on: December 22, 2008, 06:07:55 PM »
Quote from: bluegate on December 16, 2008, 08:30:13 AM
The choke tries to keep the voltage/current up when you hit the poweramp hard.
Because its a coil, it will resist changes by fighting it with induction.

Can't tell you what it'll do sonically...

It will compress sound more, both - clean and drive.
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