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61
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Ceriatone / Overtone / Re: Dumblelator vs. Kleinulator
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on: January 18, 2010, 05:43:11 PM
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It just seems like overkill for such a simple task as impedance matching.
But thats not all it does. That and a tone control for the outboard processor's input. |
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62
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Ceriatone / Overtone / Re: Overtone rackmount PREAMP?????
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on: January 18, 2010, 05:42:15 PM
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Look at the schematics. The power section has few significant differences from what fender or marshall has done.
So kindly tell me Mr Z, where does the "Class D" enter the equation? Supposedly Class D means some kind of pulse width modulation (PWM) in a feedback loop, correct? Are Nik's Overtones and real Dumbles truly Class D, or just "Class D like"? PS: VooDoo Labs makes a nice rackmount tube preamp. I wish Nik would make something along those lines. |
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63
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Ceriatone / Overtone / Re: Dumblelator vs. Kleinulator
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on: January 16, 2010, 06:13:01 PM
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You are very determined to not use a dumblelator, I won't stop you. But if you ever get a chance to compare it in real life, I'm pretty sure you will change your opinion.
I know you've done the real life comparisons. Nice job on the Dumbleaetor too. It just seems like overkill for such a simple task as impedance matching. Hopefully you haven't received a cease and desist letter from any blue haired lawyers over the Dumbleator. |
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64
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Ceriatone / Overtone / H.A.D's lawyers have blue hair?
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on: January 16, 2010, 04:45:37 AM
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While attempting to research any patents Howard might have, I saw article after article where HAD's lawyers had gone on the rampage for so called Patent Infringement. Yet I can find no actual patents the man holds in the USA.
Thus I wonder, do his lawyers have blue hair like on the Simpsons?
"Your honor, my client holds a patent on the following letters "D" "U""M""B""L""E".
Another possibility is GOOGLE can't spider it's way through the government patent office.
Well let's hope Nik never sees any blue haired lawyers.
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65
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Ceriatone / Overtone / Re: Dumblelator vs. Kleinulator
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on: January 16, 2010, 12:17:03 AM
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You made that thing? Torodial transformer?
This shouldn't be so hard. Most modern amps have loop circuitry built in.
Yet it is still the bane of Dumbles and clones after 30 years?
Even if your connecting cables are less than a half meter (your parlance), you still need an impedance matching device?
I took a look at the Boss Line Switcher. Cheap solution?
Outside of tubes, I guess the audiophile way would be J-FETs or MOSFETs. Of course one can buy a quad op-amp chip for $1, op-amps make fine buffers.
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66
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Ceriatone / Overtone / Re: Which Overtone model for late 1980s Robben Ford?
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on: January 15, 2010, 01:55:44 AM
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I use a bright cap on the amps master.
If I ditch the dumblelator and leave the bright cap: it's sounding horrible!
If you ever decide to use a dumblelator IMHO the amp should be tweaked to compensate the loss of highs.
The use of a bright cap on the master is one of those tweaks.
One thing to bear in mind is, when using the fx-loop of the overtone without a dumblelator, the higher you set the amp's master, the more change you got overloading/ toasting your fx unit.
You guys are really starting to scare me with the effects loop, something I've taken for granted on other amps for decades. I'm sure I could wire up a Kleinulator in less than an hour's time. Afterwards I'd need +15VDC and -15VDC. Counting the Kleinulator itself, that's 2 to 3 wallwarts for an effects loop that most companies include within the amp. All to power an 8 pin, dual op-amp chip that might cost a quarter. Sometimes I think I'd settle for an internal reverb and spare myself the agony of dealing with such an effects loop and goofy external boxes. If you're scared of modding and building and your happy with your overtone; get a boss line selector. Suffice it to say, I've done my time with breadboard circuits, op-amps, filters, power supplies. The Boss Line Selector is good for matching impedance? No degradation of tone? Is it passive or active? Sounds like a simple solution if the cost is right. I still say there's room for another 12AX7 in the OTS chassis for an effects buffer. |
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67
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Ceriatone / Overtone / Re: Overtone rackmount PREAMP?????
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on: January 14, 2010, 07:23:29 PM
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Ok, now it makes sense  so Dumble=gog. No, that would be blasfemi Doh - I'm a big fan of Simpsons, but never heard of Dr. Nik, though.  Peace bro Come on now, you know Dr Nick Riviera! |
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68
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Ceriatone / Overtone / Re: Overtone rackmount PREAMP?????
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on: January 14, 2010, 06:00:33 PM
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You are not very respectfull towards the person, who invented the amps we are discussing on this forum.
Yes, let's all treat Howard Dumble like the diety he really is. Your remarks are downright superficial and shallow. And your reference to Nik as 'Dr. Nik' is a bit offensive as well, Nik didn't invent anything, but gave us Dumble amps really cheap, which is fine but not worthy of a Doctors degree.
Dr Nik is a character on The Simpsons. Since you are devoid of a sense of humor, I'm sure that's not one of your favorite shows. What does "diety" mean? Hey, you got me with the old "i before e, except after c" exception. It's DEITY. Sorry for any confusion. Since the advent of spell checkers, I'm not the spelling bee champ I was in the 7th grade. |
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69
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Ceriatone / Overtone / Re: Overtone rackmount PREAMP?????
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on: January 14, 2010, 05:06:14 PM
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You are not very respectfull towards the person, who invented the amps we are discussing on this forum.
Yes, let's all treat Howard Dumble like the diety he really is. Your remarks are downright superficial and shallow. And your reference to Nik as 'Dr. Nik' is a bit offensive as well, Nik didn't invent anything, but gave us Dumble amps really cheap, which is fine but not worthy of a Doctors degree.
Dr Nik is a character on The Simpsons. Since you are devoid of a sense of humor, I'm sure that's not one of your favorite shows. |
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70
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Ceriatone / Overtone / Re: Which Overtone model for late 1980s Robben Ford?
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on: January 14, 2010, 05:02:32 PM
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I use a bright cap on the amps master.
If I ditch the dumblelator and leave the bright cap: it's sounding horrible!
If you ever decide to use a dumblelator IMHO the amp should be tweaked to compensate the loss of highs.
The use of a bright cap on the master is one of those tweaks.
One thing to bear in mind is, when using the fx-loop of the overtone without a dumblelator, the higher you set the amp's master, the more change you got overloading/ toasting your fx unit.
You guys are really starting to scare me with the effects loop, something I've taken for granted on other amps for decades. I'm sure I could wire up a Kleinulator in less than an hour's time. Afterwards I'd need +15VDC and -15VDC. Counting the Kleinulator itself, that's 2 to 3 wallwarts for an effects loop that most companies include within the amp. All to power an 8 pin, dual op-amp chip that might cost a quarter. Sometimes I think I'd settle for an internal reverb and spare myself the agony of dealing with such an effects loop and goofy external boxes. |
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71
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Website, Store / Suggestions / Re: Overtone: tube buffered effects loop option
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on: January 14, 2010, 04:34:35 AM
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sorry to put you down man but i doubt that will happen for 2 reasons,
1 the Dildo-lator will be coming out within a month and
2 it would be too hard to impliment as most ODS's are already pretty cramped on the inside
How does Boogie make a single space rack unit with 5 12AX7s with speaker emulation and tube buffered stereo returns? I've got a Mark IV with a tube buffered effects loop too. Boogie has been doing that since the 1970s. They certainly had their tube buffered act together by the time the Mark IIC+ came out, in 1985. No Randall-ulator needed! Geez, the Kleinulator is an 8 pin op-amp chip. Somehow I think there'd be space for it. |
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73
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Ceriatone / Overtone / Re: Which Overtone model for late 1980s Robben Ford?
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on: January 14, 2010, 12:58:18 AM
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Nobody knows very much about Robben Fords amp, IMO the secret about Robben's sounds is that it's in his hands. I would not say that! Robben’s tan Dumble is a non HRM, tweaked skyliner with old Fender transformers and runs on slightly high voltage. Pretty harsh sounding amp alone but absolutely magical with a dambleator, T.C. 2290 and G12-65s. Oh yes! His hands are very important too. Something about that amp, like it's wound up like a spring and just explodes at the right time. Just leaps right out at you. Hopefully you wouldn't need a Dumbleator-Kleinulator whatever if the effects loop wires are 18 inches or less. Another simple solution is balanced connectors and cables for effects hookup? |
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74
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Ceriatone / Overtone / Re: Overtone rackmount PREAMP?????
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on: January 14, 2010, 12:54:08 AM
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Disagree totally. The preamp is the sound of the circuit. The dumble power amp ain't significantly different than a fender. Ethos proves it by getting dumble sounds out of a jfet based "umble" preamp.
I agree, although "speaker emulation" might have some bearing on tone. I know many people on the Gear Page think as I. A Class D style tube preamp would be the greatest invention since the bread slicer. Which is why Dumble himself 'invented' it back in the 80s  I take it the lower unit is a preamp? I think Dr Nik could do a much better job than that, with no goofy external Dumbleator needed. Hopefully for aesthetics, he'd turn to some Boogie preamps for ideas. |
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to keep the forums alive.