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quantum · 19th Oct 2006, 11:44 am

I've used mains transformers as emergency p-p output transformers on one or two occasions, and they work, but be aware that the construction of these transformers will probably give you a restricted frequency response, so I don't think that hi-fi applications are in order! However, for a replacement in a set working on the AM bands where treble is restricted, you would probably find such a replacement adequate.

Even with single ended stages, you could probably get away using a mains transformer in a stage using a battery valve or a small mains output valve - I've experimented with such and found no problem with core saturation.

19th Oct 2006, 11:44 am	#3
quantum Retired Dormant Member Join Date: Mar 2003 Location: Birmingham, West Midlands, UK. Posts: 785	Re: Toroids as O/P trannies I've used mains transformers as emergency p-p output transformers on one or two occasions, and they work, but be aware that the construction of these transformers will probably give you a restricted frequency response, so I don't think that hi-fi applications are in order! However, for a replacement in a set working on the AM bands where treble is restricted, you would probably find such a replacement adequate. Even with single ended stages, you could probably get away using a mains transformer in a stage using a battery valve or a small mains output valve - I've experimented with such and found no problem with core saturation.