Before you order,
Check the power rating of each secondary....do you have enough head room for the circuit you are using? (I never run any power Tx close to required full power spec)
Also a good idea to fit an current inrush limiter to reduce turn on surge..
Regards
M. Gregg
Last edited:
Hi David,
it seems that your PT has gone.
With the secondairies all disconnected from the rest of the circuitry, the prim. fuse shouldn´t blow anymore. Transformer fuses rated normally twice the the primary current , which are the transformer draw on full load.
Insert a metered varic inbetween the mains an PT. Increase the voltage slowly by watching the current. The PT is defininately defect if the meter indicating any current except a negligible value due to its no load loss in the range of few milliamps.
good luck with your fault tracing!
73
Wolfgang
it seems that your PT has gone.
With the secondairies all disconnected from the rest of the circuitry, the prim. fuse shouldn´t blow anymore. Transformer fuses rated normally twice the the primary current , which are the transformer draw on full load.
Insert a metered varic inbetween the mains an PT. Increase the voltage slowly by watching the current. The PT is defininately defect if the meter indicating any current except a negligible value due to its no load loss in the range of few milliamps.
good luck with your fault tracing!
73
Wolfgang
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