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48
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Ceriatone / Overtone / Re: can you adjust the trimmers with the amp on?
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on: May 14, 2008, 01:49:46 AM
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What if you hypotheticly wired the overdrive trimmer pot to and expression pedal so you could adjust it while you play? Would that be safe for the amp? Just curious.
Sure, wire it up to a 100k wah pot and.... "Voodoo Chile" your heart out..lol.
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50
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Ceriatone / Overtone / Re: it's really quiet and hums!!!!
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on: May 14, 2008, 01:39:05 AM
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Reflow every solder joint. Confirm every component's value to the layout. Take voltages on all pins and post them back here. Also, get a camera ready for some detailed photos should you not find your problem.
Troubleshooting is a bi%$h but it's inevitable in amp building.
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55
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Ceriatone / Overtone / Re: My OT build
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on: April 28, 2008, 03:16:43 PM
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I was looking at the Two-Rock and trying to gauge the set back dimension. http://two-rock.com/photos/cl/cl1.jpg looks like 25mm 'ish and the D'Lite http://us.st11.yimg.com/us.st.yimg.com/I/yhst-89931406377916_1998_4061762 which looks nearer to 30-32mm to me. I think the 18-20mm set back you use will only work without the cutout. My cutout is 20mm deep. I was also constrained a little by the fact that I already had birch ply in 268mm width so I placed the OTS equidistant from front and back. Maybe it was a little too wide at 268mm. Its not too late to move it all forward. Did you make the cabs? What glue did you use for that blonde. The blonde I can get seems very thick and rubbery and whilst I've used both contact adhesive and PVA in the past I'd rather use PVA anyday, but I'm aware that some stuff it won't stick well enough. I think its to do with the cloth backing. Fender Black seems a lot thinner and is fine with PVA. Yes, I make all my cabs. I use a spray PVA that I get here in Japan. It works well and only requires a few minutes to gas off but you only get one shot at laying it down so.... no mistakes. Nice medley of D pics IC. Thanks.
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56
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Ceriatone / Overtone / Re: newb here and my weird plan
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on: April 28, 2008, 02:59:07 AM
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Thanks for the feedbacks. I am going to go for it. Unfortunately, I need to create some budget for the project so I will be selling some synth gear. Need to get congressional approval where the budget must remain neutral in order to pursue additional GAS. Or else the wife will get upset, you know.
Ya, I can certainly relate, too.
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58
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British Style / 18 Watt / Re: Resistor 100R
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on: April 28, 2008, 02:27:05 AM
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That 100R (ohm) resistor isn't "absolutely" required as you can just wire the middle lug of the tone pot to the CCW lug of the volume and then to ground. But, Gerry is correct...stick to the layout.
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60
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Ceriatone / Overtone / Re: My OT build
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on: April 25, 2008, 12:47:57 AM
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Just got it back from my amp tech and had a short play with it. Clean seems to be very dry and lacking 'sparkle' at home volume levels (master 1½ ish)
I prefer the OD trimmer set low and the ratio 9 o'clock ish. Though the OD is really nice for a solo lead sound when wound up a little more its not so good for chords then, I think I'll be experimenting with my OD pedal to achieve that and keep the OD channel pretty clean.
The FET input is nearly unuseable with my Ibanez335, it just starts to feedback at any opportunity. Have't had chance to try an acoustic yet as I don't own one.
So far with my 4x10 Jensen P10R cab its sounds warm and not overly bright but that changes as you wind up the master, I need more time with it and to try using the speakers in my Fender Twin Amp (fender 'special' design though I suspect there's very little special about them). I need to borrow a g12-65 cab to see what its like.
Congrats on the build. Give it a chance to burn in a bit before doing too much. Make sure all your voltages are within range. You can bias a little warmer so try that but watch for redplating. Chords?? What are those? LOL Dumbles don't do chords, sorry. Masking tape is the preferred solution to the FET problem.
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