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Variable
Inductor
0.1 - 40 µH
2-10 kw Power Handling |
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Taper Wound Front End • Silver Plated Edge Wound Coil |
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| (IRV) RI-40 |
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- Description
- Details
- More Info
It's here at last! The ultimate variable
inductor. Isn't your tuner or amplifier project worth the very
best? Made exclusively for Surplus Sales of Nebraska.
0.1 - 40 µH variable edge wound inductor. Taper
wound lower end (higher Q) for better results beyond 20 MHz.
Enough inductance for work below 160 meters too. All RF surfaces
are thick silver plated. Quad 10 amp contact sets on all
rotating connections; coil to rotor; rotor to shaft armature; shaft
armature to to end plate contacts. There are no weak links
with our mil-spec design.
Perfect for 2-10 kw antenna tuners, tank network for amplifier
or anywhere a larger, high Q, variable inductance is required.
Be sure to use our turns counter (SHW) TCV.
5" wide, 5-1/4" high, 12-1/2"
end to end, maximum dimensions. 1/4" shaft. Optional
end stop kit for motor drive schemes.
Add $35 for kit, P/N: (IRV) RI-40ESK
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(IRV) RI-40ESK
Optional end stop kit for motor drive schemes. |
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Roller Inductor
0.1 - 18 µH |
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(IRV) 406-18
LaPointe roller inductor. 0.1 - 18 µH. 27 turns. 2" diameter x 4 inch ceramic form. Silvered roller, same as Johnson 229-202. 5 amp, 12 µH silver wire. 2-1/2" x 6" x 3" high. 4-1/2" c-c mounting holes end to end. 5/8" c-c mount holes, 0.198" diameter. |
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Motorized Roller Inductor
18 µH |
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(IRV) 640333
Motorized roller inductor. 18 µH. 12 vdc reversible motor with limit switches. Requires 13 sec to go end to end. 10 turn, 10k ohm pot coupled to motor to indicate position to external sense circuit. Roller tap tied to frame ground. Easily removed. Ceramic form - end plates. 5" x 7" x 4" high. Removed from new, unused SRS SR-640 tuner. NOTE: This is the same size inductor used in Lew McCoy's ultimate transmatch. |
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Roller Inductor
0.1 - 24 µH |
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(IRV) 406-12
LaPointe roller inductor. 0.1 to 24 µH. 3" x 2-1/2" x 7-1/2". Removed from equipment. |
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Motorized Roller Inductor
0.1 - 28 µH |
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(IRV) 406-32-M
Motorized roller inductor. 0.1 to 28 µH. with 12 vdc reversible motor with limit switches. Requires 10 sec to go end to end. 10 turn, 10k ohm pot coupled to motor to indicate position to external sense circuit. Attached PC board contains TIP140 Darlington transistors that drive the motor. Use an external 10 turn pot and TTL logic to compare with the on-board pot to control the on-board motor drivers. Roller tap tied to one end of the coil and the "N" female input connector. Easily removed. Output lead is spade lug female on lead. Ceramic form - end plates. 5-1/2" x 8-3/8" x 6" high. NOTE: This is the inductor used in the SRS-645, 1 kw tuner shown on this page. LaPoint 406-32; same as Johnson 229-203. |
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Edgewound Variable Inductor
1 - 28 µH / 15 amp |
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(IRV) P400-205
Phasetek edgewound variable inductor. 1 - 28 µH, 15 amp. 3/8" diameter shaft on each end. 6-1/2" x 6-1/2" x 10"L. Used. |
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Variable Inductor
1 - 30 µH / 10 amp |
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(IRV) 400-206-5
CSP variable inductor. 1 - 30 µH, 10 amp. 3/8"D shaft. 7-1/4" x 7-1/2" x 10-1/2"L. Used. |
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Variable Inductor
1 - 49 µH / 5 kw |
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(IRV) RI-49
Variable inductor. Edgewound silver coil. 1 - 49 µH, 5 kw. Includes 1/4" flex coupling. 5" x 6" high x 13-1/2" long. |
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Roller Inductor
0.2 - 50 µH |
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(IRV) GCU1935
Roller inductor. Internal pinch roller design. 0.2 - 50 µH,
5 kw, 10 amps. Coil: 36 turns, 3/32" x 1/2" wide silver plated edgewound copper, 5-1/4"
diameter. Coil is 0.094” thick. 5 turns per inch, 9" long. 4-1/2" diameter - 72XL037 sprocket on drive-end
for motor. 3/8" shaft. 6" diameter x 15" long overall dimensions. Brand new!! |
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Variable Edgewound Inductor
5 - 100 µH |
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(IRV) P400-210
Phasetek variable edgewound inductor. 5 - 100 µH, 15 amp. 8" wide x 7-3/4" high x 18" long. 3/8" double ended shaft. Brand new!! |
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Gates Edgewound Inductor
1 - 17 µH |
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(IRV) 17-VC-15V4
Gates edgewound inductor. 1 - 17 µH,
20 amp. 3/8" shaft. Removed and old. (1950's). 6" x 11"L x 6-1/2"H. |
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Silver Coil
28 µH |
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(IRV)
ALSIMAG
Silver Coil. 28 µH. Made in the
1940's. Ceramic form. Two separate contact points. 1/4"
shaft. 3-1/2" x 3-1/2" x 7"L. |
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Edge Wound
Variable Inductor
35 µH |
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(IRV) RI-35
35 µH, edge wound silver coil, opposing
gripper contact arrangement for reliable service year after
year. 40 turns.
4" x 5-5/8" long x 4-1/4" high. 1/4" shaft. |
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Roller Inductor
0.1 - 6 µH |
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(IRV)
RI-6
Collins roller inductor with insulated coupling. 0.1 - 6 µH. 4" x 2-3/8" x 2-3/8". 19/32" x 1/4"D shaft. NSN: 546-6435-002. |
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Roller
Inductor Replacement
Wheel & Bar |
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(IRV)
K57J58-G1
Roller inductor replacement wheel & bar. Silver roller with ball bearings inside!! Ribbon
wire tie-offs on end. 1-3/16" diameter wheel made for
1/8" diameter inductor wire. Made by G.E. in 1945. 7-3/4"L
x 3/16" diameter shaft. |
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Variable Inductor
12 µH
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(IRV) RI-12
All silver plated. Looks like it should
handle 20 - 30 kw. 8 turns 3/8" diameter tube coil. 3/8"
shaft coupling included.
9"
diameter x 13" long.
Excess from SRS. Only a few left. |
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Roller Inductor Wheel
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(IRV) 7809266P2
Westinghouse roller inductor wheel. Silver plated bronze. TPE transmitter spare. 0.938" diameter. 0.863" inner groove diameter. 0.2" bore diameter. 0.5" long. Westinghouse item 284, 293. |
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Core Roller Inductor
0.3 - 35.8 µH
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(IRV) 2434
Nice ceramic core roller inductor. Shaft
end has slot to mate with nylon quick coupling (shown right)
which fits 1/2" shaft. Little
or no previous use. Electrical connections are made to ribbon conductors opposite
shaft end. Mounts on bottom with 4 screws, 2 in each of the green composite end plates.
3"
x 3-1/2" x 5-1/2". Composite RF material. Stand alone frame, silver
plated kilowatt roller coil, as new, removed from (IRV) 503178 auto
tuners found in Vacuum Variable section. |
| $99 each |
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| Sliding
slotted coupling mates with female on end of inductor and
automatically recovers from missalignment |
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| Close-up
of slotted shaft on end of inductor. |
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Close-up
of 1/2" diameter female end of nylon
coupling that is supplied with 2434. |
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Roller Coil
0.4 - 20 µH |
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(IRV) N16C-76423
Surplus heavy duty ceramic core roller
inductor. 8-1/2" maximum length, 4-3/8" x 5"
high. 1/4" shaft two ends.
Should handle 3,000 watts. |
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Square Edgewound
Wire Inductor / 0.5 - 11 uH @ 20 amps |
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(IRV) 226-005-22
Identical to left but 10" max. length. 3/8" shaft. Includes 30 kv, 1/4" shaft coupling. Made by Multronics, Inc. |
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Gear Motor
24 vac / 28 rpm |
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(IRV) B00003
Gear motor for operating rotary switches. 24 vac, 28 rpm. It has a spring loaded pawl that retracts when power is applied and engages when power is removed to stop the motor. Plenty of torque due to gear reduction. NOT REVERSIBLE. 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. |
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70 rpm Loaded Speed
Reversible Gear Motor |
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(MOT) B00005
24 vac (50 / 60 Hz) operated motor
is used in the SRS Antenna Couplers to tune inductors, switches
and vacuum caps.
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.
Limited quantity! |
Suitable
for almost any remote tuning
application of a vacuum cap, rotary
inductor or ceramic switch. |
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