JanusRec
Well-known member
Hi,
for my low voltage tube preamp I need a simple way to get 6,3V out of a 18VAC trafo.
I thought of half-wave rectifying one of the trafo terminals and driving a Lm317 with the resulting 11 or 12V DC (with charging caps), so I have 11V -3V (consumed by the LM317) and 1,7V for the LM to burn = 6,3V
Anything wrong with that?
Or are there better designs to get 6,3V without a DC-DC converter? I didn't find anything in the PSU meta or using the search function...
for my low voltage tube preamp I need a simple way to get 6,3V out of a 18VAC trafo.
I thought of half-wave rectifying one of the trafo terminals and driving a Lm317 with the resulting 11 or 12V DC (with charging caps), so I have 11V -3V (consumed by the LM317) and 1,7V for the LM to burn = 6,3V
Anything wrong with that?
Or are there better designs to get 6,3V without a DC-DC converter? I didn't find anything in the PSU meta or using the search function...