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Author Topic: 3rd channel on OTS  (Read 10320 times)
Pickmaster
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« on: July 15, 2008, 08:48:13 PM »
Hi guys,

Here is a diagram for the Plexi-Hi gain channel. It is footswitchable  and has gain control and tone (high cut) control 3 position switch.
I removed FET board and I’m using a FET input hole for gain potentiometer.
3 position switch is on the rear panel in the “full / half” hole.

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guvmuleman
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« Reply #1 on: July 16, 2008, 05:17:10 PM »
 hi, that looks very interesting. I seem to be able to dial in a pretty marshally tone already, can you tell me what differences it made for you? thanks,Mike
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Pickmaster
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« Reply #2 on: July 16, 2008, 06:07:15 PM »
Hi Mike,

Difference is that I have THREE knob footswitch which gives me:
1.   Clean
2.   Clean + Boost
3.   Dumbly Overdrive
4.   Overdrive + boost
5.   High gain drive
6.   High gain + Boost = shred.

It is just more colour on the palette when you need it.
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guvmuleman
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« Reply #3 on: July 17, 2008, 12:14:43 AM »
that sounds like it would be amazing. And your still using 6l6s? I take it you need to get a different footswitch? You know someones gonna ask you for some soundclips. thanks again, you really got my curiosity going. Mike
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Pickmaster
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« Reply #4 on: July 17, 2008, 02:57:49 PM »
Mike,

Sound sumples are here
http://www.guitarampcab.com/overtone.html

enjoy
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jonnferrell
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« Reply #5 on: July 22, 2008, 01:58:06 AM »
I couldn't seem to get the sound samples to work.  This would be a great mod.  I'm tempted to give it a try as I would love to have some more gain in this already awesome amp.  Nice cabinet.  I'm in the process of building mine, and the idea of the ventilation on the bottom and fan is a good thought.  What kind of fan did you use, what's the placement, and all?
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poipounder57
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« Reply #6 on: July 22, 2008, 04:35:52 AM »
WoW!!!  Awesome guitar playing...amp sound great!!!  Thanks for sharing!!!
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AdrianJ
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« Reply #7 on: July 22, 2008, 11:27:11 AM »
Pickmaster, perhaps stupid question, are you Dr Ika?
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Pickmaster
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« Reply #8 on: July 22, 2008, 03:06:20 PM »
Quote from: AdrianJ on July 22, 2008, 11:27:11 AM
Pickmaster, perhaps stupid question, are you Dr Ika?
Hi Adrian, Yes I am dr. Ika (Eka)
Quote from: poipounder57 on July 22, 2008, 04:35:52 AM
WoW!!!  Awesome guitar playing...amp sound great!!!  Thanks for sharing!!!
Thanks for listening my friend, cheers.
Quote from: jonnferrell on July 22, 2008, 01:58:06 AM
the idea of the ventilation on the bottom and fan is a good thought.  What kind of fan did you use, what's the placement, and all?
Hi,
It Is 240v mains fan, has 2k, 25watt resistor on it to slow it down (less noise).
It sits on the grill under the power transformers and power valves.
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jzucker
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« Reply #9 on: July 22, 2008, 07:37:38 PM »
Just buy a zendrive and use that as your 3rd channel!
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Pickmaster
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« Reply #10 on: July 23, 2008, 11:08:49 AM »
Hi Jack,
I have two: Wink zen and zen2 tube. Don't like them! no way they can produce a distortion like this http://www.drika.biz/chign.mp3
or this http://www.drika.biz/cplexi.mp3

Also I disconnected PAB circuit which is useless(for me)  in OTS and created much more simple and powerful boost which does not change the tone
You can hear it on this sample at 2,24min. http://www.drika.biz/cityblue.mp3

About pedals: I tried probably most of them – from Zen to Ethos  and only two staid with me so far, moded Tone Pump by Barber and king of all pedals moded Koch Pedaltone – 4 tube 5 channel monster preamp.

Cheers
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