How to assemble a narrow cw filter FT-817; FT-818; FT-857; FT-897

How to assemble a narrow cw filter http://www.southgatearc.org/news/2022/september/how-to-assemble-a-narrow-cw-filter.htm#.Yxmmk4byjXc https://www-southgatearc-org.translate.goog/news/2022/september/how-to-assemble-a-narrow-cw-filter.htm?_x_tr_sch=http&_x_tr_sl=en&_x_tr_tl=pl&_x_tr_hl=pl&_x_tr_pto=wapp#.Yxmna7_P0cB

  PRZEJDŹ NA FORUM