These toroids are a good option to use for QRP/low power EFHW antennas, common mode chokes and baluns.
For EFHW antennas we would not suggest more than 25w maximum SSB and therefore <10w data.
Recommended for use with the DG1JAN UniBalun available from this shop.
Fair-Rite FT82-43 Ferrite Core (5943000501) for EFHW or Balun/CMC
£1.24Price
Excluding VAT