step down transformer(240V-9V)
96551
How to determine which wire is which on a transformer?
134144
On No-Load Current of a Transformer
106964
High voltage transmission, transformers and Ohm's law
66305
Getting rid of AC/DC adapters
83572
How to select an LDO voltage regulator?
125877
I need to switch between two 240V 30A loads
84467
How can I rewire half switched receptacles?
145665
Tapping energy from high voltage AC transmission lines
155126
How to transform 5V into 12V?
80449
DIY 24v to 5v usb phone charger
116269
Ground type for DC regulator
59547
Short circuit = zero voltage?
2430
Maximum power transfer of transformer
122061
tube amp power transformer
91399
Electricity Transformers and power
155533
Is there a dual of the transformer?
151925
Do both legs in 220V have to be switched?