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Inexpensive Power Transformers

Hammond makes a number of transformers with 115/230V primaries and a secondary that's either 115V or 115/230V. Some of these look just right for preamps. One that I'm considering for an upcoming project is the Hammond 186D120. This has a 115/230V primary and a 115V secondary rated for 250 mA. Used in reverse and applied to my line voltage of roughly 120V, it would output about 240V. With a full wave bridge, that translates to a B+ of 315-320V at more than 100 mA.

This transformer is less than $16 from companies like Mouser, even in single quantity. My only concern is whether the lack of a shield might be a problem, especially in a preamp (I want to include a phono stage). Does anyone have any experience using these for this purpose?




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Topic - Inexpensive Power Transformers - Triode_Kingdom 07:41:50 06/10/17 (25)

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