To calculate the critical value, your B+ voltage and choke resistance is needed. Also nice would be minimum and peak current.
Critical value increases as current drops, for the choke to drop your B+, x amount of current must always be drawn. This isnt an issue in class A, and not a big one in typical ~70% rich class AB hifi. You may need bleeder resistors to insure choke criticality in some cases though.
Critical value increases as current drops, for the choke to drop your B+, x amount of current must always be drawn. This isnt an issue in class A, and not a big one in typical ~70% rich class AB hifi. You may need bleeder resistors to insure choke criticality in some cases though.
Sure.
http://www.audiotropic.net/WillsAmp/powSchem.gif
The amp is well explained here:
http://www.audiotropic.net/WillsAmp/
My power supply is not dual mono and i will use another rectifier, apart from that i'm building the same amp.
I have two PTs. Initially i bought the Hammond 370HX because i was going to use silicon diodes but then i changed my mind and decided to go tube rec so i bought a nice power trafo from an old tube radio shop here in Madrid. The transformer gives exactly the same voltages as the schematic posted, it has plenty of current available, i have tried it in another circuit with 6AS7s (160mA) and worked great...warm not hot to the touch.
If i am to use the Hammond i willl have to change many things, recalculate values...the Hammond looks better though...
What's your suggestion?
I really don't like the dual supply approach because i don't want the chassis to be too large.
If i am to use the Hammond i willl have to change many things, recalculate values...the Hammond looks better though...
What's your suggestion?
I really don't like the dual supply approach because i don't want the chassis to be too large.
OK,
Now that I understand the problem is simple:
1. You must build 2 of the circuits from the inductor point forward. So 2 inductors, 4 82 UF caps, 2 - 2.2K reistors.
2. Connect the second circuit at the 1uF capacitor (same as pin 8 of 5y3.
You are using the 5Y3 at the limit... no problem... just no more!
All is well.
Now that I understand the problem is simple:
1. You must build 2 of the circuits from the inductor point forward. So 2 inductors, 4 82 UF caps, 2 - 2.2K reistors.
2. Connect the second circuit at the 1uF capacitor (same as pin 8 of 5y3.
You are using the 5Y3 at the limit... no problem... just no more!
All is well.
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