The first diodes used were 1N914s, then switched to Schottky diodes. No difference in performance could be determined. The main problem in building a homebrew mixer is getting the trifilar transformers wired correctly. Taking your time and being careful is all the advice I can give. The cores are FT37-43. An alternative is to use a commercial mixer, an SBL-1, SBL-3, TUF-1 or anything similar. I found no difference between the commercial ones and the homebrewed variety. |
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