This is the second time my Neumann 147 tube has blown. It first blew
when was using it as an overhead for drum kit, and now I had it in
front of my SMF amp and it blew again. I had the amp using a thd
hotplate so it wasn't even that loud

Is there something I'm missing about this mic or did I just get a bad
one.

Paul

(Paul) wrote in message . com...
This is the second time my Neumann 147 tube has blown. It first blew
when was using it as an overhead for drum kit, and now I had it in
front of my SMF amp and it blew again. I had the amp using a thd
hotplate so it wasn't even that loud

Is there something I'm missing about this mic or did I just get a bad
one.

Paul

Just a quick follow-up. Neumann was nice enough to have everything
taken care of. Thanks.

Paul

In article writes:

This is the second time my Neumann 147 tube has blown. It first blew
when was using it as an overhead for drum kit, and now I had it in
front of my SMF amp and it blew again.

There's no reason for the tube to "blow" just from exposure to sound.
What's blowing? Filaments? Or does the mic stop working, and start
working again when you replace the tube?

Maybe there's a mechanical problem that you "fix" by opening it up, or
maybe there's a problem with the power supply. In any case, I'd
suggest that you contact Neumann. Cleraly this isn't typical behavior.



--
I'm really Mike Rivers )
However, until the spam goes away or Hell freezes over,
lots of IP addresses are blocked from this system. If
you e-mail me and it bounces, use your secret decoder ring
and reach me he double-m-eleven-double-zero at yahoo

check all the voltages
greg dwinell

"Paul" wrote in message
om...
This is the second time my Neumann 147 tube has blown. It first blew
when was using it as an overhead for drum kit, and now I had it in
front of my SMF amp and it blew again. I had the amp using a thd
hotplate so it wasn't even that loud

Is there something I'm missing about this mic or did I just get a bad
one.

Paul

check all the voltages
greg dwinell

"Paul" wrote in message
om...
This is the second time my Neumann 147 tube has blown. It first blew
when was using it as an overhead for drum kit, and now I had it in
front of my SMF amp and it blew again. I had the amp using a thd
hotplate so it wasn't even that loud

Is there something I'm missing about this mic or did I just get a bad
one.

Paul

Mike Rivers wrote:

There's no reason for the tube to "blow" just from exposure to sound.

That's true in general, but this particular model had somewhat more than
its share of "birth pangs" at first (mainly a few years ago).

Definitely the first move should be to contact one's dealer, Neumann USA,
or the Neumann representative in whatever country one is working in--by
now they know fairly well how to deal with the situations that come up.

Mike Rivers wrote:

There's no reason for the tube to "blow" just from exposure to sound.

That's true in general, but this particular model had somewhat more than
its share of "birth pangs" at first (mainly a few years ago).

Definitely the first move should be to contact one's dealer, Neumann USA,
or the Neumann representative in whatever country one is working in--by
now they know fairly well how to deal with the situations that come up.