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In the Forum: Melquiades Amplifier
In the Thread: Do the Filament Transformers Require a Center Tap?
Post Subject: More power is less heat and more efficiency. Do direct impact to sound.Posted by Romy the Cat on: 10/6/2017
Iraschwips, sorry did not see your post. Anthony is basically
right, it does not matter for this specific application of you have center tap or
not. It is also not really important if you connect filaments on 6C33C in series
or parallel. There is a catch in here. If you connect parallel then you have a freedom
to drive the first stage and second stage from the same fully loaded transformer
or to drive a half of 6C33C if you would like to. There is a catch in this catch
as well. If you chose to add or remove filaments at will then the voltage drop
as you load the transformer more might think your voltage well below of what
you need to have. From what I observed the audio filaments transformers are
real crap. You buy let say a transformer
that should give you 6.3V and 10A but if you begin to load it more then you might
discover that the current rating is very not really accurate. It might give you
6.3V at 6A but as you draw let say 9A then the voltage will drop to 6.0V. If
you have just one channel then it is not a problem but then you have many channels
and you have an option to wire the thing differently than you do want to have a
lot of extra VA transformer. So, if I need 500VA then got for 1200VA transformer
and have a lot of spare power in there. This is just a direction t think that I
share. You should be of for one channel with a direct power matching..Rerurn to Romy the Cat's Site