One commercial linear power supply that works well for the T-bolt is Power
one's HTAA-16W.
This is a 16W triple output 5V 2A +12V (or 15) 0.4A -12V 0.4A unit. While 0.4
is under the warm up rating for the T-bolt it's OK for running. The fact that
we are well under running it on +5V and -12V means the +12 is OK at 0.6 to 0.7A
for short periods. The 10% derating for 50Hz v 60Hz tells me the transformer is
the limiting component. Spreading the load across ratings is OK. They are
available new and surplus. New is about $100 but surplus they run 99p to £20.
Robert G8RPI.
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