Block N87 Transformer Core, 7300nH, For Use With Choke Converter Topologies, Transmitter

Block FS-1E Series Size 55/28/25 Ferrite Transformer Cores

FS-1E series size 55/28/25 ferrite transformer cores made from N87. These standard 'E' type ferrite transformer cores are available with air gaps inserted:
Stock number 840-7471 has a 0.1mm gap
Stock number 840-7553 has a 0.2mm gap
Stock number 840-7636 has a 0.5mm gap
Stock number 840-7724 has a 1.0mm gap

For bobbin see stock number 840-7298

Transformer Ferrite Kits - Cores