Hi All I am gathering the parts to build a two valve 3-500Z linear amp. All the suggestions for the filament choke seem to be to purchase from RF parts or surplus sales in the USA. I haven't been abl
The 33 Mix is what gets you down to 160 without having to get fancy with using the choke as part of the input network. The network programs dont calculate for the hammy hambone "engineering". Carl KM
has a mu of 600. Type 43 has a mu of 800. I had zero access to type 33 material in rod form. What you don't want is type 61, with it's mu=125. It won't provide enough uh on the low bands at all. If t
** I dont know where you are getting 43 mix rods Jim since Fair-Rite doesnt make them. The 33 mix is the choice plus it is temperature stable to a high degree. ** Rich must have copied that from Dent
** I dont know where you are getting 43 mix rods Jim since Fair-Rite doesnt make them. The 33 mix is the choice plus it is temperature stable to a high degree. bottom. Dunno where sson gets em from.
** Since SSN doesnt list a manufacturer and 43 mix is proprietary to Fair-Rite I suspect its BS. Call Fair-Rite and ask them if they ever made such a rod. $35 for WHAT?? Why didnt you just get 33 rod
tiny little things, just .25" diam x 40mm long, and not made from type 33. Amidon sells .5" x 7.5" rods in only type 61 and type 33. [$20.00] I got the 8" long type 43 rods from SSON several years ag