How do you rebias an HT-40?
2 posters
Page 1 of 1
How do you rebias an HT-40?
Ok...I've read that I have to rebias when I put new power tubes in, but how is it done? I've removed the chasis, and found the pots, but where are the contact points for my multimeter? I've biased other amps, but each one is a little different. Anything available on this???
clay49- Posts : 1
Join date : 2010-07-26
Re: How do you rebias an HT-40?
Blackstar still don't have made the schematics available...do you have a picture of the board ???
But....take this with caution....my amp tech said to me that they don't need to be rebiased, for my Artisan, they seem to be cathode biased...it's the case on the ht 20 :
http://www.guitariste.com/forums/amplification,blackstar-amplification-user-s-club,272095,190.html
It's in french, but it's sure for the ht 20, no reason not to be the same on the ht 40...me with my Artisan, i have no issue, tubes seems to be at a nice level, and no buzz is audible, so i think it's the same too.
But....take this with caution....my amp tech said to me that they don't need to be rebiased, for my Artisan, they seem to be cathode biased...it's the case on the ht 20 :
http://www.guitariste.com/forums/amplification,blackstar-amplification-user-s-club,272095,190.html
It's in french, but it's sure for the ht 20, no reason not to be the same on the ht 40...me with my Artisan, i have no issue, tubes seems to be at a nice level, and no buzz is audible, so i think it's the same too.
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
|
|