Category: Power Supplies

Transistor equivalents

Transistor Equivalents – old equipment restoration

Where to find transistor equivalents? Restoring old gear can be a nightmare when it comes to some of the more obscure transistor types, and a pretty expensive exercise as well. Transistor equivalents for substitution is often a necessity when repairing vintage gear. This applies equally well to silicon devices and not just Germanium. Years back…

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Buck-Boost-PSU

Power supplies for projects

Cheaper alternatives for supplying power to projects Let’s face it, EI and toroidal transformers break the budget.  Going back a few decades I always recall my own projects being run from batteries.  Family would give me their faulty gear to strip and if I was lucky I could get away with a transformer or two.…

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