Search found 2438 matches

by The Scum
Thu Mar 10, 2016 9:40 pm
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

The official datasheet has one more word on it: http://www.analog.com/media/en/technical-documentation/obsolete-data-sheets/139484016SSM2017.pdf The huge "obsolote" stamped across every page. They've been superseded by the SSM2019, which is available, and priced like the THAT parts. ICs from China a...
by The Scum
Tue Mar 08, 2016 3:07 pm
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

I've got a couple of condensor mics that would work with a pad that can supply phantom power, nothing more.

Of course, I'm a rock drummer, so I don't usually tax the noise floor of my gear.
by The Scum
Fri Mar 04, 2016 2:05 pm
Forum: Creative Recording
Topic: A&H: direct outs
Replies: 3
Views: 1174

In general, direct outs are post fader.

Looking at the GL2 docs online, it looks like there come cuts & jumps to configure where the direct out is in relation to the fader.

http://www.allen-heath.com/media/GL2-AU ... PTIONS.zip
by The Scum
Sun Feb 28, 2016 12:45 pm
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

Thanks for the schem!

Are J111's still obtainable?

Last time I met with a Fairchild rep, they were telling me that all through hole parts were going to be EOL very shortly.
by The Scum
Sun Feb 28, 2016 12:41 pm
Forum: Creative Recording
Topic: Is the Mackie 1604-VLZ supposed to run hot?
Replies: 1
Views: 726

Mackies tend to run warm. I've got an original 1202 that gets significantly warm near the power switch. Warm is OK. Hot is not. If you can't hold your finger on it indefinitely, a> something is wrong, and b> it's a fire hazard. The 1604 VLZ may stem from the counterfeit electrolytic capacitor days: ...
by The Scum
Sun Feb 28, 2016 12:36 pm
Forum: Creative Recording
Topic: Holy crap why has it taken so long for someone to make this?
Replies: 20
Views: 4133

Fulltone has been making both tube and solid state Echoplex clones for about a decade.

Their pricing makes the TRex look like a bargain.
by The Scum
Sat Feb 27, 2016 2:34 pm
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

If cost is a concern, opamps (or the THAT chip pres) are probably the best bang for the buck. Unless you've got parts to scavenge, a modest HV power supply probably runs $50 in parts...$35 transformer, a couple of $5 400V caps, etc. Most tube mic pres need input transformers, and you'll probably wan...
by The Scum
Fri Feb 26, 2016 8:53 pm
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

Also, what's the source of the schematic?

I'm kinda curious about what they say about the "see text" resistors.
by The Scum
Fri Feb 26, 2016 12:40 pm
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

Careful with your parts numbers here: it's 5534, not 5334. You'll have trouble sourcing 5334's.

But yes, a `2 is a twin `4.

And those circuits are basically the "diff amp" configuration I mentioned.
by The Scum
Fri Feb 26, 2016 10:43 am
Forum: Creative Recording
Topic: Simple scalable mic preamp
Replies: 40
Views: 12599

The THAT 1510/1512 are probably the best bang for the buck, low parts count preamp chips around. Add a 1646 if you need a balanced output. You could always wire a 5534 as a diff amp with gain...or build out the front end with more opamps (instrumentation amp config) or transistors (which is very clo...
by The Scum
Sat Feb 20, 2016 9:26 pm
Forum: Buy/Sell/Trade
Topic: Old Patchbay Assembly
Replies: 3
Views: 532

Before anyone gets too excited: those are Centronics, not Tuchel connectors.

Tuchel's look like this:
http://www.blevinsaudio.net/tuchconnect.html

Not a bad deal on a TT bay that large, though.
by The Scum
Thu Feb 11, 2016 9:35 pm
Forum: Creative Recording
Topic: Fostex 812 Collapsing My Stereo Instruments into Mono?
Replies: 2
Views: 596

How do you have the panning on the subgroups set?

Is there a mono switch on the master section?
by The Scum
Fri Feb 05, 2016 9:20 am
Forum: Creative Recording
Topic: recording live bands/drummer who sings
Replies: 13
Views: 2643

"We do feature normally Keith Moon singing, but today we'll just have to feature him."
by The Scum
Mon Jan 04, 2016 1:19 pm
Forum: Creative Recording
Topic: power concerns
Replies: 15
Views: 4740

In my experience, there are a handful of things that go wrong. Some are easier and less expensive to detect and/or fix. Also, without knowing a lot more details about what you're experiencing, it could just as easily be something that's broken or improperly connected, instead of the power system. Fi...
by The Scum
Mon Jan 04, 2016 1:18 pm
Forum: Creative Recording
Topic: power concerns
Replies: 15
Views: 4740

In my experience, there are a handful of things that go wrong. Some are easier and less expensive to detect and/or fix. Also, without knowing a lot more details about what you're experiencing, it could just as easily be something that's broken or improperly connected, instead of the power system. Fi...