Faulty Neve 33135

[Phil Cibley]

You probably have a component in there which is thermally intermittant. Get a can of freeze mist at the electronics supply store, open the box. When the sound fades out, start spraying it on the logical culprits like transistors, coupling caps, and resistors in the signal path. When the signal comes back, you know you have the right component.

[Rab]

Thanks for the tip... that makes complete sense!

[Phil Cibley]

I have my occasional lucid moments. Hope it helps.
Phil

[SirPatchAlot]

I have 2 33135's that had very intermittant behavior until Geoff Tanner informed me that those modules outputs must be terminated w/ an output tansformer.
Once I patched the output into the transformer (basically a big grey box that sits in the back of my rack), I had no problems whatsoever.

Without the transformers theres all kinds of weird/unexplicible behavior.

They now sound very good!

Hope that helps.