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 Post subject: Cut control
PostPosted: Sun Nov 13, 2005 6:01 pm 
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Who here has put one on your lightning?

I'm considering trying one....but I'm going to mount the pot off the chassis for the time being, so I dont go drilling holes in my chassis, unless I want the mod.

But I'm curious to hear what you guys think of the cut...and to add to the curiosity, what cap did you use for the cut control?

-Frank


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PostPosted: Wed Nov 16, 2005 1:31 am 
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Man!
Did someone pass gas in here??

...this place is a ghost town!!!

-F


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 Post subject:
PostPosted: Wed Nov 16, 2005 4:34 am 
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Location: 31°45'32.69"S 115°46'51.29"E Perth, Australia
Arggh it's Frank.... everybody run!


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 Post subject:
PostPosted: Thu Nov 17, 2005 10:29 pm 
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So is anyone going to offer any advice on a cut control???

Or should I get really pissy! :evil:


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 Post subject: Re: Cut control
PostPosted: Fri Nov 18, 2005 12:04 am 
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bitsandvolts wrote:
But I'm curious to hear what you guys think of the cut...and to add to the curiosity, what cap did you use for the cut control?
-Frank


I haven't used one but if you serch this forum for 'cut' I'm sure you'll find plenty on what and how to do this.

For example

viewtopic.php?t=25&highlight=control

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 Post subject:
PostPosted: Sun Nov 20, 2005 11:25 pm 
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To temporarily try a cut to see if you like it, you could always just tack a cap onto your master volume control.


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PostPosted: Sun Dec 11, 2005 5:54 pm 
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Its really really nice. The circuit is identical to the master control, with the addition of a .0022 cap. You just wire it parallel, see my photo at the bottom of this post.

Of course the cut is more effective with the master up. I'm a clean player and never ever use the master, so it will be disabled next time I'm feeling ambitious, but the cut stays.

I really like the sound with the treble at about halfway up, and the cut at half as well. Great bite and jangle with no harshness.

Image

P.


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 Post subject:
PostPosted: Sun Dec 11, 2005 10:30 pm 
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So, if you added a switch to that 1M master, you get to disable the MV whenever you want and you still have a cut. Seems like that would be a plan. Would you say it has any effect on 'cleaning' up the sound? or justremoving the edge you don't like?

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 Post subject:
PostPosted: Sun Dec 11, 2005 11:14 pm 
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Steve,

Since initially posting this, I've implemented a cut control. Exactly as paul showed in the picture.

It's a very subtle control on the high end. It's like it slices off a sliver of highs from the amp. Not like a treble control, that shapes the sound....this sorta just chops the a sliver of top off the high end. The more you increase the cut, the more in chops off....

It's very useful for this amp!


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PostPosted: Mon Dec 12, 2005 7:26 am 
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The Cut not only slices off the brittleness, it seems to shape the mids slightly.

Even with a 1M pot on the master, I notice a difference in the response of the amp with the control all the way up.

In addition, at least on my amp, the master only really works in the first 1/3 of its travel. I tried lower values, parallel resistors etc., but they only made the problem worse.

With the master completely out of circuit the amp has more "transparency". The cut seems to have no effect at all when its all the way open, I guess because of the cap.

I may just replace the pot with a 6-way switch with a resistor network to maintain the possibilities, but in the past or 8 months I've never used the master outside of my house so it may just go.

P.


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PostPosted: Mon Dec 12, 2005 10:21 am 
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Paul G. wrote:
The Cut not only slices off the brittleness, it seems to shape the mids slightly.


You may be right there...I'll have to turn up the amp and check it out.


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 Post subject:
PostPosted: Thu May 18, 2006 11:02 am 
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Did you use an 250K Audio taperpot there? Looks like it i.e. A250K. the DC 30 specifies linear.

Just wondering

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 Post subject:
PostPosted: Mon May 22, 2006 3:04 pm 
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I use a .0047uF cap and a 1M pot. The lightning, to my ears, REALLY needs a cut control, particularly if you want to effectively use the tonestack in all it's interactive glory (especially controlling the mids). Otherwise you'll find yourself stymied because you always have to keep the treble really low. With the cut, you can scoop mids at the tonestack level (turning bass/treb up), but still dial out some highs afterwards.

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 Post subject:
PostPosted: Tue May 23, 2006 4:54 pm 
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So we have one at 250K and one at 1M. Any other suggestions. One cap at .0047 and one at .022.

Any other suggestions? the DC30 uses 250K Lin & .0022 uF.

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 Post subject:
PostPosted: Sun Jun 11, 2006 4:11 pm 
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What would you say the differences are between the 1M/.047 combo and the 250k/.0022 combo? Is one just a stronger cut? Which one would that be? I'm really pleased at how easy this will be to impliment.


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 Post subject:
PostPosted: Wed Jul 05, 2006 2:07 pm 
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I have added the Cut Control to all kits as an improvement. Also added an extra output jack so now there's 4, 8 & 16 ohms.

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