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Source of cheap power transformers

Member
Joined 2021
Paid Member
Hi,
I'd like to share a recent experience. I've been looking at low cost power supply solutions for pre- and headphone amps, and after a bathroom refurbishment at home I noticed a very nice isolation transformer in the shaver socket. I quickly bought two second hand on ebay for £5, and was pleasantly surprised to find a 20VA transformer with a tapped secondary. Tried both full wave and bridge, with load currents in excess of 50mA DC. Full secondary DCR is 140 ohms. Add a small smps for heaters and there is a low cost solution. Not for everyone, but may be of interest for some.

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