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Old 1st August 2008   #421
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Quote:
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I don't think Darlington's pattent is still enforceable...


...so, somebody can get patent on his invention again?
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Old 6th August 2008   #422
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I'm stoked to finally have something to share in this thread! Attached are a couple (new) pics of the Level-Or(TM). My Standard Audio partner Thom and I are very proud of this box and glad to show off the gutz! Enjoy!
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Old 6th August 2008   #423
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cool pix Ian!!!!
thanks for posting these!
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Old 6th August 2008   #424
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cool pix Ian!!!!
thanks for posting these!
Hi Pan60,
We haven't forgot about ya! We've got a demo earmarked for you; our #1 goal has been getting production units out to those who purchased them. We will get something to you sooner rather than later. I'll keep in touch.
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Old 7th August 2008   #425
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Quote:
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Hi Pan60,
We haven't forgot about ya! We've got a demo earmarked for you; our #1 goal has been getting production units out to those who purchased them. We will get something to you sooner rather than later. I'll keep in touch.

the customer should always come first!
i am looking forward to getting one in the mad lab here!
we will stay in touch.
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Old 12th August 2008   #426
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Found these behind the toilet .
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Old 12th August 2008   #427
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Found these behind the toilet .
Can you say "retirement?"
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Old 12th August 2008   #428
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Do these state VF-14 on them?

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Found these behind the toilet .
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Old 12th August 2008   #429
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Found these behind the toilet .
And where might that toilet be?
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Old 12th August 2008   #430
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Do these state VF-14 on them?
i can see one that does.

holy hell.
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Old 13th August 2008   #431
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Found these behind the toilet .
Are they real? Or are they old octal cans with new printing and Nuvistors stuffed inside?
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Old 16th August 2008   #432
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And under that , I found these - Man I never clean back there
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Old 20th August 2008   #433
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GTM-822 for sale

Inside of an Aurora GTM - 822 Mini Mixer
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Old 27th August 2008   #434
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Orban / Parasound Dynamic Siblance Controller 516EC

Guts Pics and a MYSTERY -- see notes below...


OK, so here is the power supply and channel # 3 (this is a 3 channel unit):




And here are channels #1 & 2 and the additional boards that someone has added in. I would have guessed that they were balanced ins, but there are still only two ins (on a barrier strip). Any other guesses?

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Old 27th August 2008   #435
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DC/DC converters for 48V phantom power?
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Old 27th August 2008   #436
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Looks like a balanced input to me. The larger chip looks like a resistor array. How many connections did you think you needed for a balanced input?
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Old 28th August 2008   #437
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Trick question, Ulysses?

While three conductors are typical in a balanced cable - you're right, they could have tied the shield to the chassis, I suppose (or left this end unsheilded?).

So this unit is optimized for balanced inputs but unbalanced outputs, which I guess is OK since it will likely end up feeding a channel insert anyway.

One final question then, the tie ins to the + and - 15VDC are to power those chips? (OK, two questions, should I worry that the rails are +14.99 and -14.93)?
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Old 28th August 2008   #438
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I thought you were asking about black bricks.

Yes, that small boards look like preamps.
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Old 29th August 2008   #439
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The unit pictured above is the 3 channel Orban 516EC de-esser. You can see that the third channel is unmodified and has a single white wire from the barrier strip to the circuit input.

THe first and second channels have been modified with a DIY perfboard input circuit. I think that Justin is correct and these are for a balanced input.

Here is the schematic Note the unbalanced input.
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Old 29th August 2008   #440
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Quote:
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While three conductors are typical in a balanced cable - you're right, they could have tied the shield to the chassis, I suppose (or left this end unsheilded?).
One final question then, the tie ins to the + and - 15VDC are to power those chips? (OK, two questions, should I worry that the rails are +14.99 and -14.93)?
The shield is strictly speaking not a requirement for balanced audio. But I would assume the reason there isn't a screw terminal for it is because this was a retrofit and there wasn't another screw terminal available. Shouldn't prevent somebody from attaching the shield though - I would bet there's a screw someplace on the rear panel you can use.

Yes, the +/-15V rails are tied in to power this circuit. The smaller chip is an op amp that needs power. The voltages you measured are not a problem. Strictly speaking, they mean you get .04dB less headroom than you would with exactly 15V rails. In other words, there's absolutely no problem.
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Old 7th September 2008   #441
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Pyramid-V prototype. 2x80W nominal, Russian military tubes. MOSFET voltage regulators for filaments, screen grids, pre amp. This is a concert version, with grill top and TRS ins/outs. 0 dB input, outputs: 4, 8, 16 Ohm. Transformers custom made by EDCOR USA for 20 Hz - 20 kHz on full power.
Studio monitor version has a rack mount face plate; home stereo version has banana and RCA sockets.
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Old 9th September 2008   #442
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Atlas Juggernaut guts:

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Old 9th September 2008   #443
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Atlas Juggernaut guts:]

I like the black and white shielded cans for the transformers. Good idea.

Is black=iron and white=nickel?
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Old 9th September 2008   #444
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I like the black and white shielded cans for the transformers. Good idea.

Is black=iron and white=nickel?
The powder coating is really great. Keeps things simple.

Precisely

Black = Iron, white = nickel.
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Old 14th September 2008   #445
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Atlas Juggernaut guts:

Is Tim building that for you? Looks like his work...flawless.
Congrats!
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Old 14th September 2008   #446
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Is Tim building that for you? Looks like his work...flawless.
Congrats!
Yes! Proudly so.
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Old 30th September 2008   #447
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Some pics of our new REQ-2.2...
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Old 30th September 2008   #448
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and one on the test bench
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Old 30th September 2008   #449
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Some pics of our new REQ-2.2...
One thing I love about Tim's designs. They always look as neat and orderly as little cities. Absolutely amazing.
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Old 30th September 2008   #450
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Some pics of our new REQ-2.2...
Like to see PCB's have support, it kills me when some just leave the boards just flapping in the breeze...
Nice job Tim...
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