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Valve Mic Noise Problems
Old 25th January 2007
Here for the gear
russ russell's Avatar
๐ŸŽง 15 years
Valve Mic Noise Problems

Hi All!

Anyone know much about valve mic repair/service?

I have a fairly inexpensive valve mic that has developed a rumbling hum, like a mixture of wind noise, thunder, and mains hum. I figured it was the valve and had a good quality replacement sent over from Watford Valves. The new valve has slightly changed the tone of the noise (because its a different valve i guess) but its still there. Anyone have any pointers on what could be the cause? i'm pretty handy at fixing gear but i'm always reluctant to dive into areas i know little about without getting some advice first.

Any help would be greatly appreciated,

Old 25th January 2007
Lives for gear
RusRant's Avatar
๐ŸŽง 10 years
Could be a moisture issue. Do you use a wind screeen or sock when using the mic? Do you store it in a cool dry place? Try storing some silica packets ( like they use for shipping) in the mics bag or storage case. Beyond that I would look for a qualified tech.
Old 25th January 2007 | Show parent
Here for the gear
russ russell's Avatar
๐ŸŽง 15 years
thanks for the tip, but it's rarely used for vocals, and when it is i always use a pop shield. its stored at room temperature in a dry environment and with a silica bag in the case, so i doubt its moisture,

i would take it to a tech for repair but all the ones i can find are specialists and seem to (quite understandably) charge a fortune, which is ok if you have a U67 or C12 but when its a cheaper mic the cost doesnt seem justifiable.

thanks all the same though, appreciate your reply.
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