weird static with Herbert/beast

[shadow070]

I am a new Herbert owner and really love the amp. I recently retubed the amp with 6550, with help from P. Stapfer. Great support!
Hes verry bussy so im posting this issue here.

Peter or Olaf should be able to help with the issue and also a view off the others here.
Its like air is blowing within the speakers. Ive checked cables, effects, guitar and cab.
https://www.youtube.com/watch?v=NJKL8VARXjE

FYI: im really liking the 6550 tubes. It deff. comes with some sirious punch, also more highs and a little less mids. They have as solid tone.
Theire biased at 80ma for every pair(iff im correct), could i bias them a little hotter for a warmer tone?

Im using channel two all the time, channel tree is just a little to compressed, ill spend more time on this channel in the future, maybe other preamp tubes could help but im still a noob when it comes to tubes

Also: i was talking to an other guitar player last week. He changed cabs with his amp switched on standby, is this ok for the amp?

Sorry for any bad english, und mein deutch is nicht so gut

 

[Peter Diezel]

It´s a bad tube

Turn down the gain pots.

If it disapperars replace V1.

If not, turn down the volumes.

If it disappears replace V2 and V3.

If not, turn down the master.

If it disappears replace V4, V5.

If not, replace V6.

If the noise is still there it´s one of the power tubes.

 

[shadow070]

OK, ill do when im finished at work, thanks for the fast reply.

Peter, im verry pleased with the herbert, the amp delivers

 

[shadow070]

Peter,

Ive tried what you said, its the powertubes, its still there after all the points you put in youre reply.

 

[Peter Diezel]

Thank You very much for the kind words

Please remove the powertubes step by step and
find out the bad one. Are they SED´s ?

Replace it with some type and grade number.

Btw, this would be the first bad 6550 tube in
a Diezel amp I heard from.

I build in over 700 now and had no bad one.

 

[diezel&gas]

finger prints to catch the criminal isn't it?

 

[shadow070]

Peter, on what email adress can i contact you?

the 6550 tubes are just a vew weeks old

 

[steve_k]

It´s a bad tube

Turn down the gain pots.

If it disapperars replace V1.

If not, turn down the volumes.

If it disappears replace V2 and V3.

If not, turn down the master.

If it disappears replace V4, V5.

If not, replace V6.

If the noise is still there it´s one of the power tubes.

You won't find this in the Amp Tech's Manual! Every time Peter posts something like this, I copy and paste to a big running file I am keeping. Loads of good tricks posted here for future reference.

Steve

 

[xshredx]

You won't find this in the Amp Tech's Manual! Every time Peter posts something like this, I copy and paste to a big running file I am keeping. Loads of good tricks posted here for future reference.

Please post this file of yours... I would be very interested... and start collecting from now on too...

 

[nbarts]

You won't find this in the Amp Tech's Manual! Every time Peter posts something like this, I copy and paste to a big running file I am keeping. Loads of good tricks posted here for future reference.

Please post this file of yours... I would be very interested... and start collecting from now on too...