Transmitting Variable Inductors
0.3 µH - 150 µH / 1.6 - 30 MHz / 160 - 10 Meters
Add a vacuum cap that we can also help with and an enclosure, gear motors (https://www.surplussales.com/Motors/Motors-1.html) and misc parts and you will have one heck of a tuner. Or add our turns counters ( https://www.surplussales.com/ShaftHardware/ShaftH-1.html) for a manual set up. Granted the 150µH is excessive for wire Vee antennas in the ham bands but this was originally designed for a mobile whip requiring mucho inductance. Factory power rating is 150 watts but I will add the ribbon is larger than the one used in the Collins 180S-1. Users of the Bliss Match Master swear they use their tuner on legal limit amps with no problem... ever!
The fact is two-thirds of the coil will probably not be used. End stop switches are mounted and provisions to mount a ten-turn pot for indicator circuitry are included. This is the highest quality variable inductor available on a limited basis at a fraction of the original cost.
- 0.3 µH - 150 µH
- 1.6 - 30 MHz
- 160 - 10 Meters
- Dimensions: 19"L x 8"W x 7-1/4"H
0.1 - 20 µH / 2 kw
0.1 - 18 µH
17 µH / 5 kw
RF Grade Fiberglass Grooved Spool
Gates Edgewound Inductor
1 - 17 µH
0.1 - 6 µH
Wheel & Bar
Roller Inductor Wheel
0.4 - 20 µH
Edgewound Roller Inductor
23 µH / 10 amps / Tapered Winding
24 vac / 28 rpm
Mounted in a 4-1/4" x 3-1/2" x 5"H aluminum frame with mounting tabs. Motor measures: 2-5/8" x 3-1/4" x 4". 1/4"D shaft.
70 rpm Loaded Speed
Reversible Gear Motor
Healthy torque manages any component in their line. 70 rpm at 24 vac 60 Hz, with full rated load. Lower voltage to lower speed also decreases torque. Double 1/4" shaft exits each side of gearbox. Mounts by threaded post sockets on front spaced in a 1-9/16" square.
Max dimensions 3-3/4" high x 2-7/8" wide x 3-1/2" deep from mounting posts to electrical terminals on back. MK Model QFS3420R. Includes starting cap and wiring instructions.
Suitable for almost any remote tuning application of a vacuum cap, rotary inductor or ceramic switch.