JamesL
1000+ Head-Fier
- Joined
- Dec 5, 2007
- Posts
- 1,214
- Likes
- 17
Tube microphonics - I have the same problem on one of my tubes.
Unfortunately, the 19j6 aren't easy to come by.
I've never had a problem with microphonics traveling up from the desk, but I've used a cloth mousepad under a amplifier before which was very effective at preventing vibrations in my PC-case making its way up to the amp.
Clamping down part of the cable from your ipod to the amplifier to something solid helps to dampen any microphonics going up that way.
I still experience microphonics when touching any part of the case, but I haven't been bothered enough to do something about it yet.
Quote:
Unfortunately, the 19j6 aren't easy to come by.
I've never had a problem with microphonics traveling up from the desk, but I've used a cloth mousepad under a amplifier before which was very effective at preventing vibrations in my PC-case making its way up to the amp.
Clamping down part of the cable from your ipod to the amplifier to something solid helps to dampen any microphonics going up that way.
I still experience microphonics when touching any part of the case, but I haven't been bothered enough to do something about it yet.
Quote:
So, My kit starving student is happily working away and I am enjoying it quite a bit. I have one issue though. I seem to get significant ringing or pinging in my cans if I touch the amp while listening. Happens if I touch the heat sinks, the tubes, the volume knob, touch my source (Ipod), or even the side table the amp sits on. I can get it to be really pronounced if I start tapping, even by tapping on my Ipod.
So are my symptoms what is referred to as Microphonics or is it something else?
Can it be minimized? (isolation of the amp / some sort of dampening of the tubes / some tweak to the amp)
The problem is that it uses the increasingly difficult to source 19J6 tubes - so I am hoping it is not a problem with the tubes. Ideas on how to troubleshoot would be greatly appreciated.
Thanks