SB-221 input

[Detroit47]

I just picked up a Sb-221 it didn't look bad on the outside but.... The inside has a little 11 meter mod. As it turns out who ever built it didn't put in any input coils. So I need some formation on the input coils. I have some coil forms that will fit, the number of turns and the wire size for each would be a help. This will save me from having to do the math for each one. I plan to use it mainly for slop bucket. It is of no real use for AM.

73 N8QPC

[KM1H]

The whole input assembly often shows up on Fleabay after one gets converted to 6M. The last one I sold was $50.

They run fine at around a 250W carrier on AM; a small muffin fan on the transformer helps if youre into a lot of locked mike hot air.

Carl

[mauimark]

Aloha,

I have modded several SB-221 for ten meters. I do keep an extra set of input coils that I would not part with, but would be glad to count the turn on the coils, get the wire size and send some close-up pictures of the coils in order with the additional capacitor changes as well. If you are interested email me. 73 Mark WH7TU