Neotek Series II-Replaced noisy control room monitor pot.

AB International Model 600LX Power Amp-
No or really low output.

This was being used for the coffee table set of speakers in St A's control room.The ±15 power rails were being loaded to less than 1 volt. These power rails supply the input op amp, and discrete input section of the power amp. They ...

Neotek Series II-Mute leds on unmuted tracks flickering cyclicly causing quiet "tick-tick-tick" noises on the 2-mix bus.This could be stopped by turning off the Mute Group/Solo logic feature (mod). I narrowed it down to channel 26's Mute Group/Solo isolate function switch (there's one on every ...

Sennheiser MKH-405We had this mic sitting around for a bit. Installed a little phantom to T12 converter inside a 3-pin din connector to XLR umbilical so we can use it without an external supply.

Modding an Altec 436 to the EMI 124 idea.Later :Finished with the first one. Going to test it in action during a mix session this week. The "recovery" time options are slow, but not as bad as the original Altec. I might have to replace some noisy parts, but I just want the concept to be proved ...

In most buildings they have land-line phone infrastructure. Can you get AT&T though that?

Testing on the Elite,Making a new wire loom for the Neotek Series II power supply (moving it out of the control room soon).

Urei 1176LN (version H modified by Alactronics)-Giant pops and noise when pluging anything into it.Found 10-12 vdc on the input (XLR pins 2 and 3)! This 1176 uses the op amp differential input design working off a single 30v supply (amp inputs resting at 15v). The inputs to the amp are coupled via ...

Hey Chris,Just moved your question of the tech journal (meant just for my records).First thing I can think of is an imperfect connection of all 3 conductors from the console mic input to the mic, particularly the shield, since dynamic mics work. Do your mic lines route through a patchbay? Are you ...

thecr4ne wrote:Hey Greg, I have a DDA S-series console that doesn't pass signal from phantom powered mics. I get signal from dynamics fine, and I measure +48 on the XLRs at the board's inputs, but when I connect a phantom powered mic I get nothing, maybe some noise. PSU checks out ok, but I was ...