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Bill Morgan
Senior Member
Joined: 16 Jul 2003
Posts: 379
Location: Tokyo
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 Posted: Wed Apr 28, 2004 5:38 pm Post subject: |
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| kirk95 wrote: |
So does the Dumbleator has it's own transformer and power supply?
How does it plug into the loop? |
Yes, it's completely self-contained. The in's and out's are normal 1/4" jacks.
Bill |
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phaseinverter
New Member
Joined: 25 Apr 2004
Posts: 4
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| Posted: Wed Apr 28, 2004 8:05 pm Post subject: Dumbleator Loop |
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| If the Dumbleator is a bufferd effects loop with a cathode follower which I believe it is, then the loop inside would tap somewhere inside the clean master volume, the return would tap into the phase inverter. Which would explain why he runs the master way up. So in order for the Dumbleator to be a parallell loop it would have to have a mix control which it doesn't. Depending on the gain structure of the dumbleator which I believe does not add gain it could concieveably override the gain of the master volume also effecting the OD gain (trim drive) settings. Very complex set up which is why Robben hired David. Also the bias of the overdrive special is crutial. |
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Aeolian
Senior Member
Joined: 04 Nov 2003
Posts: 886
Location: SF Bay Area
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| Posted: Wed Apr 28, 2004 10:49 pm Post subject: |
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Interesting, on Daved's page, he shows the recording set up as having the Dumbleator disconnected. Makes sense to have as clean a signal as possible on tape and then add the effects in the mix.
Every time I've seen the rig, there are stickers for the settings on the Dumbleator and they never change. Same with Larry's rig. Howard may as well put fixed resistors in there for unity gain or whatever and save Daved from the trouble of checking to see if the knobs got bumped.  (I hate having to check so many knobs when setting up, and us mortals don't have a Daved to do it for us  )
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There are no such things as wrong notes, there's only the look on your face.
My Stuff: www.stevekirbymusic.com |
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Flavum
Member
Joined: 25 Jul 2003
Posts: 32
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| Posted: Thu Apr 29, 2004 4:54 pm Post subject: |
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| JingChiFan wrote: | I wonder what would happen if I put a flexloop in that loop? I'd regain parallel-ality (new word), ability to put pedals in the loop, and get another tone shape-able gain stage. Are these Flexloops and others like them very quiet?
Mike |
This is a very interesting thought. I'm thinking the same thing for my Fuchs. I could run the loop in series, using the Flexloop to reparallelize (and another new word!) the signal to feed outboard effects. The Fuchs' return level could then be used as an added gain/volume control. My mind just boggles...  |
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phaseinverter
New Member
Joined: 25 Apr 2004
Posts: 4
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| Posted: Fri Apr 30, 2004 10:52 pm Post subject: |
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| Actually the Dumbleator is a series loop but the loop inside the amp is in parallel. You could also control the amount of gain in the dumbleator by using a 12au low gain 12at med and a 12 ax higher gain. You can control the amount of mix between the dumbleator and the amp by the master volume. Really pretty cool!!. |
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Phil T
Senior Member
Joined: 16 Dec 2003
Posts: 109
Location: MI, USA
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| Posted: Sun May 02, 2004 8:01 am Post subject: |
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| Quote: | Actually the Dumbleator is a series loop but the loop inside the amp is in parallel. You could also control the amount of gain in the dumbleator by using a 12au low gain 12at med and a 12 ax higher gain. You can control the amount of mix between the dumbleator and the amp by the master volume.
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Actually, when connected to the Dumbleator, the point in the amp circuit at the input to the phase inverter is interupted (i.e. disconnected and routed to the Dumbleator and then back to the power amp section).
This makes it totally series (the output/return control on the Dumbleator also sort of acts like a master volume).
pt |
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