How do I construct a filament for the PCL86?
I do not understand how to implement the filament for a tube that depends on a steady current for heating the tube.
The questions that I have:
1 - Is it essential that the given current is used? (In this case 300mA)?
2 - The Uf seems to be less critical, is this correct?
3 - What kind of methods can I use?
4 - I am planning on using it in a pre-amplifier, should I use AC or DC for heating the tube?
----------------------------------------------------------
Known data:
Uf - somewhere between 13.3V and 14.5V (depending on which datasheet you use)
If - 300mA
I do have a transformer with 12V-AC on the secondary side.
----------------------------------------------------------
Thanks in advance.
Luuk Boessenkool
I do not understand how to implement the filament for a tube that depends on a steady current for heating the tube.
The questions that I have:
1 - Is it essential that the given current is used? (In this case 300mA)?
2 - The Uf seems to be less critical, is this correct?
3 - What kind of methods can I use?
4 - I am planning on using it in a pre-amplifier, should I use AC or DC for heating the tube?
----------------------------------------------------------
Known data:
Uf - somewhere between 13.3V and 14.5V (depending on which datasheet you use)
If - 300mA
I do have a transformer with 12V-AC on the secondary side.
----------------------------------------------------------
Thanks in advance.
Luuk Boessenkool