> "Where do you buy stuff for beverage like 470 ohm non carb resistor for
terminating and cores for 9:1 in US ?"
Ohmite and IRC/TT still manufacture non-L, carbon composition resistors. If
there's a reason to avoid carbon composition, Ohmite and KOA manufactures
ceramic composition resistors in their OX (1-watt)/OY (2-watt) product line.
In the U.S., these resistors are available from Mouser, Digikey,
Newark/Element 14, Allied, and Arrow Express.
Regarding toroid cores, W0BTU has assembled a nice compendium of data on the
subject. In particular, see the postscript written by Barry, N1EU:
http://www.w0btu.com/files/beverage/BeverageXfmrs.htm
Paul, W9AC
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