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RE: Also on the input caps.1mf,.22mf it set up for + an - going right

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In Reply to: RE: Also on the input caps.1mf,.22mf it set up for + an - going right posted by tubevibb on February 26, 2008 at 07:19:33

You're probably using film caps which are inherently nonpolar, so you will have no real problem even if you don't pay any attention to "polarity". However, there are some who think that they should be hooked into circuit such that the leads attached to the inner and outer foil, respectively, have a particular orientation. That's up to you. I've experimented with that factor and heard very tiny differences, at most. But regardless, you don't treat the two phases of the dual-differential drive as + and -. They are just two halves of the same signal that are 180 degrees out of phase with each other. So, if you believe that orienting your film caps makes an audible difference, orient the two coupling caps in the same direction for both halves of the dual-diff drive.

Now I am sure you are going to tell me that you hear a big difference....

Follow Ups:

RE: Also on the input caps.1mf,.22mf it set up for + an - going right - tubevibb 08:12:43 02/26/08 (2)
It not Big, it just Diff. you no that, But how well you no if you dont GO,
Well i no now , you Lew are not set up like myself i can make changes to all My Amps an pre,s ALL in my Place are set up on jig,s The Forntend on Xfourmers on heaters, on Variac, then the Outputs 80Amp Xfourmes for heaters 1kVA for each output winding, so yes it not as eze for you
Lew you say that you amps are in the Basment, i wood have to set them up there so could work on them ,an not move the Amps, but may be that not for you
But you even sead with these amps any chang made a Diff.
I just have got one life, an if i can help Any one Get Better sound
thats what i am all about, NO more No less
thanks
- No - Lew 08:55:31 02/26/08 (1)
  I said that I have to carry my 80-lb monoblocks down TO my basement in order to work on them, because there is where I have a workbench large enough to accomodate them. My listening is done on the first floor of my house, so to work on the amps I must carry each one about 30 feet from where they sit when in use, then walk down a set of stairs to the basement, then walk another 30-40 feet to the workbench. Negotiating the stairs is tricky, because the amps are so large that I cannot see where my feet are on each step. Not to mention that one must undo a few dozen fasteners to gain access to the circuit. This is not something I want to do more than once or twice a year. I'd rather listen to music.
  - Yes SIR, MY god You could Die - TubeVibb 10:16:18 02/26/08 (0)
    NO nO No,so here is what i think one of the best MOD or upgraid
    AN you have allredy,mostlikey,put the 5ohm,6AS7 or what Ralph 3ohm,6c33 in the Cathodes,this is were the bass get better, an your tube work better,
    If no other Mod,this one Everone likes, an i Have for a long time, but My tube are 6AS7,Diff. so go fig.but if i bild an nother Amp 5ohm well be in.
    Any way it your Deal AN if it Good for you Thats all it about!

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