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GReg-Electrical Tech Journal

Posted: Wed Jul 16, 2008 4:30 pm
by greg_Archive
There, you happy?

GReg-Electrical Tech Journal

Posted: Wed Jul 16, 2008 4:34 pm
by greg_Archive
New (old) dbx 160 vu over threshold led not lighting up, and xlr connectors pin 3 hot (output unbalanced).

Cleaned oxidized molex connector feeding leds after discovering the circuit, and led both work fine when properly connected. Cleaned other molex connectors with deoxit.
Rewired input and output connectors to pin 2 hot. I also disconnected the 1/4" connectors.

GReg-Electrical Tech Journal

Posted: Wed Jul 30, 2008 4:27 pm
by Kennymk2_Archive
7/30
Headphone box wiring-
Most helpful and supreme intern Kenny presumptuously completes wire stripping work, resulting in 22 striped and soldered wires in all, not including those already connected to other headphone parts.

Also gave the as of yet unmastered Bitter Tears record another spin when tired of NPR. Pretty ace work, my friend.

GReg-Electrical Tech Journal

Posted: Thu Aug 14, 2008 5:34 pm
by greg_Archive
Wired some new connectors on old headphone boxes.

GReg-Electrical Tech Journal

Posted: Mon Aug 18, 2008 6:41 pm
by greg_Archive
I removed a pan pot from Neotek Series II to source a modern replacement.
I just got done recapping, cleaning two Series IIs in Canada (Hotel2Tango, and The Pines), and a big bummer was the noisy pan pots. There isn't a simple wash for them that will remove the scratchiness, rather, an extreme rebuild job. It might be more affordable to simply replace the problem pan pots with a better ones.
We will see how expensive it is.

GReg-Electrical Tech Journal

Posted: Tue Aug 19, 2008 6:15 pm
by greg_Archive
David Duval drilled holes in most of our Furman boxes for the new connectors.
Spent a lot of today with folks trying to unravel someone's 1/4" reel. Somone brought by a tote box filled with 2500' of loose tape, knotted and mixed.

GReg-Electrical Tech Journal

Posted: Thu Aug 21, 2008 12:29 pm
by greg_Archive
8/20/8
Recapped, and fixed Steve's IVP. One of the inputs wasn't working. It turned out to be a dead op amp. I replaced some grungey looking ic sockets too. Both sets of inserts are now hard wired so those normaling switches wont ever be a problem.

Greg-Electrical Tech Journal

Posted: Tue Oct 04, 2011 7:00 pm
by greg_Archive
This is an email I sent to a friend about the mods we did to our Furman HD-6 wiring.

I don't recommend doing it unless you are good at doing things... tedious things.
It doesn't have to do with any active circuitry modifications, though, there is a strong argument to address the power capabilities of the system down the road. Here is some info on the Furman upgrade. I should let you know that is pretty labor intensive.
If your studio is like many, where setups are pretty similar from one session to the next, you can permanently strap those things to stands, and tie wrap the cables so there is no play, and get by. If that doesn't work for you, buy some beta blockers and get a fine tipped soldering iron. The panel mount female connector we used is Neutrik MRF12Male cable connector MSCM12. The cable we used is Belden 9505-0601000. It's nice and flexible. There might be a better color-coded one out there. There are 5 black wires that you need to mark with this one. You can use the existing wiring/connectors that you have to the studio, just mult the new ones to it. We used ribbon cable to go from the cat 5 PCB footprint (removed connector) to the newly mounted Neutrik connectors in the boxes. You need to jumper all the grounds together on the cat 5 footprints, in the headphone boxes.

Greg-Electrical Tech Journal

Posted: Thu Oct 06, 2011 7:00 pm
by Rog_Archive
greg wrote:buy some beta blockersOn the subject of sedatives - any progress with the E.A. Handheld Sustainer prototype?

Greg-Electrical Tech Journal

Posted: Sat Oct 08, 2011 7:00 pm
by greg_Archive
Rog wrote:greg wrote:buy some beta blockersOn the subject of sedatives - any progress with the E.A. Handheld Sustainer prototype?Not to date.