LM7812 need to boost current.

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greeting everyone,I have positive regulator I.C LM 7812 need to boost output current around 2 ampere.How to add transistor to get that current.I don't want to use 317 series,can anyone please give me simple circuit to wirring will very appreciate ( I use this I.C regulator to heat 12AX7 filament it work fine and sound good enough for my ears but I need more current).Thanks foward.
 

6L6

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thanong -

Can you give us a bit more information? Specifically,

What is this being used in?
What is your voltage supply? (What transformer, rectification, etc...)
What is the load? You mention filaments, what kind of tubes? How many?
You say you want to 'boost the current' Can you elaborate?
 
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