Rollerinductor
EF Johnson Roller Inductor 229-201 / 0 - 10 UH / 3A | eBay
Transmitting Variable Inductors
Roller inductor making - YouTube
hamtech
G3YNH info: Variable inductors used in HF antenna matching networks.
E. F. Johnson Large Roller Inductor Coil for high power amplifier or tunner. | eBay
Transmitting Variable Inductors
EF Johnson 11.3 uH High Quality, Commercial Silver Plated Roller Inductor in Excellent Condition
RI-32 32µH Roller Inductor 3.5" x 3.75" x 6 3/8": Palstar.com
E.F. Johnson 222-103 Roller Inductor 10uh - Electronic Components - BMI Surplus
Transmitting Variable Inductors
Roller Inductor MFJ 989D Antenna Tuner 33 uH
755017A8230 Roller inductor, fscm 14304, NSN # 5950010573825
eHam.net
Commercial 20 uH High Quality, Plated Roller Inductor from Broadcast Transmitter in Excellent Condition
Variable Roller Inductor Coil - JOHNSON 10uH - LINEAR AMPLIFIERS ANTENNA TUNERS | eBay
66 TURNS ~77µH ROLLER INDUCTOR VARIABLE INDUCTANCE COIL SILVER COPPER WIRE NEW | eBay
