Case in point:
SE Electronics X1, noisy/crackly.
I've tried cleaning the capsule (q-tip + IPA + gingerness), no gold flaked off or anything, and the diaphragm IS cleaner than before. Noise persists, though.
Circuit, oddly enough for a supposedly good-sounding mic with a K67-type capsule, looks to me like a Schoeps, minus the oscillator for increasing the capsule polarisation voltage. It might, though, have some RC-filtering around the FET - there's a couple of SMD ceramic caps around there, but i haven't bothered tracing the exact circuit.
Ideas? Replacing the FET, perhaps?
SE Electronics X1, noisy/crackly.
I've tried cleaning the capsule (q-tip + IPA + gingerness), no gold flaked off or anything, and the diaphragm IS cleaner than before. Noise persists, though.
Circuit, oddly enough for a supposedly good-sounding mic with a K67-type capsule, looks to me like a Schoeps, minus the oscillator for increasing the capsule polarisation voltage. It might, though, have some RC-filtering around the FET - there's a couple of SMD ceramic caps around there, but i haven't bothered tracing the exact circuit.
Ideas? Replacing the FET, perhaps?