Air Variable Capacitors: Slotted
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Neutralizing Plated
Capacitor
Neutralizing Plated Capacitor
(CTA) 37-04583-001
Neutralizing plated capacitor. Slotted end. Silvered. 0.870" x 0.058" plate. 1.075" x 0.189" threaded shaft. NSN: 5910-00-824-3835.
$10 each
Slot Adjust Air Variable Capacitor
1.2 - 4.2 pF @ 650v
Slot Adjust Air Variable Capacitor
(CTA) 189-501-34
Slot adjust air variable capacitor. 1.2 - 4.2 pF @ 650v. Four plates. 0.010" air gap. 27/64" high.
$4 each - $3.25 (6+), $2.85 (25+)
Slot Adjust Air Variable Capacitor
1.9 - 14 pF @ 325v
(CTA) 189-506-5
EF Johnson slot adjust air variable capacitor. 1.9 - 14 pF @ 325v. 2 solder tabs. Silver surfaces, ceramic base. Made in the USA by EF Johnson, Brooklyn Electronics. NOS. NSN: 5910-00-0132-2287.
$16 each
Slot Adjust Air Variable Capacitor
5.5 - 100 pF @ 600v
(CTA) 483223
Millen slot adjust air variable capacitor. 5.5 - 100 pF @ 600v. Single section, 0.531" L slot adjust shaft, 1/4" DIA. 2" L overall, 180° rotation. 1 solder tab, 2 solder stud, panel bushing mount. Alt P/N: ESA6802070-25. NSN: 5910-00-194-8899. Made in USA. NOS-MILSPEC.
$28 each
APC Style Slot Adjust Air Variable Capacitor
3 - 50 pF @ 500v
(CTA) APC-50
APC style slot adjust air variable capacitor. 3 - 50 pF @ 500v. 0.937"W x 1.219"H. 1.2" behind panel depth. Mounts by front 6-32 screws on 0.662" centers.
$15 each
Double Ended Slot Adjust Air Variable Capacitor
6.3 - 100 pF @ 1 kv
Johnson Air Variable Capacitor
(CTA) PW11-70
Double ended slot adjust air variable capacitor. 6.3 - 100 pF @ 1 kv. APC style mounts for either end on 0.657" centers. 2.56"L x 15/16"W x 1-1/4"H. Vintage. Made in 1958.
$37 each
Johnson Air Variable Capacitor
Johnson Air Variable Capacitor
(CTA) 158-6
Johnson air variable capacitor. 6-100 pf. 500v. APC100 style. 1" x 1-1/4" x 2-1/8" deep. Removed from new equipment.
$21 each
Matsushita Polyvaricon Air Variable Capacitor
10-200pF
Matsushita Polyvaricon Air Variable Capacitor
(CTA) 2ZB-20
Matsushita Polyvaricon air variable capacitor. Japanese era transistor radio capacitor. 10-200pF. GC-35. Capacitor terminals are mounting taps. 14.5mm (0.573") mounting centers on tapped face. 4mm x 2.4mm double flat shaft. 1" x 1" x 5/16".
$2 ea - $1.75 (6+), $1.40 (50+), $1 (500+), 85¢ (2k+)
Cardwell Air Variable Capacitor
1.1 - 4 pF @ 5 kv
(CTA) ZS-4-SS1S
Cardwell air variable capacitor. 1.1-4 pF @ 5 kv. 0.140" gap. 1-3/8"W x 2-1/8"L x 1-1/8"H. Slot adjust with locking nut. Alt P/N: PL6025.
$35 each
Vertical PC Mount
Machined Solid Brass - Silver Plated Hi Q
1.3 - 4.1 pF @ 325v DC
Vertical PC Mount
(CTA) 189-26-5
Vertical PC mount air variable capacitor. Machined solid brass, silver plated Hi-Q. 1.3 - 4.1 pF @ 325v DC. 6 plates. Slot adj. Q=2000. 7/16" square, 1/2" high. Made by Johnson.
$2.75 each - $2 (6+), $1.75 (25+)
Cardwell Air Variable Capacitor
1 - 5 pF
(CTA) ZV-5-TS/S
Cardwell air variable capacitor. 1-5 pF. 0.070" gap. 1-7/16"W x 1-1/8"H x 1-5/8"L. Slot adjust with lock nut. Includes optional plate to increase capacity to 7.5 pF.
$25 each
Air Variable Capacitor
5 - 150 pF
(CTA) 251-9187
Sickles Air variable capacitor. 5pF - 150 pF, 37 plate. Silver plates show oxidation. 360° continuous rotation, panel bushing mount, slotted shaft. 2.25" L x 1" W. 1/4" DIA shaft x 1/4" L. Alt P/N: ARL-J. USA, NOS.
$35 each
PC Mount Slot Adjust
Air Variable Capacitor
1.4 - 7.3 pF @ 350v

PC Mount Air Variable Capacitor 1.4-7.3 pF @ 350v
(CTA) 542-000
PC mount slot adjust air variable capacitor. 1.4 -7.3 pF @ 350v. Silver plates. P/N: 542-000.
$3 each - $2.65 (6+)
PC Mount Air Variable Capacitor
1.4 - 9.2 pF @ 650v
PC Mount Air Variable Capacitor
(CTA) 189-503-5
PC mount air variable capacitor. 1.4 - 9.2 pF @ 650v. 8 plates. 0.010" air gap. 0.453" square, 33/64" high.
$3.50 each - $3 (6+), $2.75 (25+)
Slot Adjust Air Variable Capacitor
1.5 - 7.8 pF @ 325v DC
Slot Adjust Air Variable Capacitor
(CTA) 193-29
Hardwire air variable capacitor. 8 machined silver plates. Slot adjust. Vertical mount. 1/2" wide x 9/16" deep x 5/8" long. Made by Johnson.
$4 each - $3.50 (6+)
Slot Adjust Air Variable Capacitor
1.7 - 11 pF @ 125v DC
Slot Adjust Air Variable Capacitor
(CTA) T6-5
Johnson subminiature "T" type air variable capacitor. 1.7 - 11 pF @ 125v DC. Stable ceramic base. Q=2000 @ 1 MHz. 12 machined silver plates. Vertical mount for PC board. 0.47" tall. Alt P/Ns: 922-1030-010 (Collins), 187-0106-005 (Viking), NSN: 5910-00-787-5261.
$3 each - $2.50 (6+), $2 (25+)
Slot Adjust Air Variable Capacitor
1.9 - 16 pF @ 125v DC
Slot Adjust Air Variable Capacitor
(CTA) T9-5
Johnson subminiature "T" type air variable capacitor. 1.9 - 16 pF @ 125v DC. Stable ceramic base. Q=2000 @ 1 MHz. 18 machined silver plates. Vertical mount for PC board. 0.581" tall.
$3 each - $2.50 (6+), $2 (25+)
Machined Solid Brass
Silver Plated - High Q Horizontal Mount Trimmers
2.1 - 22 pF @ 500v AC
Machined Solid Brass Air Variable Capacitor
(CTA) 189-5089-105
Johnson machined solid brass air variable capacitor. 2.1 - 22 pF @ 500v AC. 18 plates, 3/4" long. Otherwise, same as capacitor (CTA) 189-509-105 below.
$5 each - $4.25 (6+), $3.75 (25+)
Machined Solid Brass
Silver Plated - High Q Horizontal Mount Trimmers
2.4 - 24.5 pF @ 500v AC

Machined Solid Brass Air Variable Capacitor
(CTA) 189-509-105
Machined solid brass air variable capacitor. Silver plated, Hi-Q, horizontal mount. 2.4 - 24.5 pF @ 500v AC. 20 plates. Slot adjust. PC 3 leg base. 7/16" square x 13/16" long. Made by Johnson.
$6 each - $5.50 (6+)
PC Mount Air Variable Capacitor
2.4 - 24.5 pF @ 325v DC
Erie PC Mount Air Variable Capacitor
(CTA) 548-003
Erie vertical PC mount air variable capacitor. 2.4 - 24.5 pF @ 325v DC. Silver, machined plates. 7/16" square x 13/16" high.
$4.50 each - $4 (6+), $3.50 (25+)
Slot Adjust Air Variable Capacitor
2.4 - 24.5 pF @ 325v DC
Slot Adjust Air Variable Capacitor
(CTA) 189-509-151
Johnson hardwire or PC mount air variable capacitor. 2.4 - 24.5 pF @ 325v DC. 20 machined silver plates. Slot adjust. Vertical mount. 7/16" square x 13/16" high. Made by Johnson.
$4 each - $3.50 (6+), $3 (25+)
APC Style Air Variable Trimmer
4 - 25 pF @ 500v
APC Style Air Variable Trimemr
(CTA) CT1C025
APC style air variable trimmer capacitor. 4 - 25 pF @ 500v, lock nut. Mounts with (2) #6 tapped holes on front. Slot adjust. 13/16" wide x 1-1/4" high. 1" long. Ceramic insulator.
$7 each - $6 (6+)
Air Variable Trimmer
2.7 - 28 pF @ 750v
(CTA) 158.2
E.F. Johnson Co. variable capacitor. 2.7 - 28 pF @ 750v. APC style. Slot adjust. 15/16"W x 1-3/16"H. 5/8" centers on 6-32 taps. New in the box!!
$10 each
Side Adjust PC Mount
2 - 10 pF
(CTA) TA10
Side adjust, PC mount variable capacitor. 2 - 10 pF. Hi-Q, solid brass plates.
$5 each - $4.50 (6+), $4 (25+)
Vertical PC Mount
Machined Solid Brass - Silver Plated Hi Q
2.7 - 27 pF @ 325v DC

Machined Solid Brass Vertical PC Mount
(CTA) 193-8-5
Johnson vertical PC mount air variable capacitor. Machined solid brass, silver plated Hi-Q. 2.7 - 27 pF @ 325v DC. 16 plates. Slot adjust. Q=1500. 1/2"W x 9/16", 3/4"H.
*** SOLD OUT ***
APC Style Air Variable Trimmer
3 - 30 pF @ 750v
APC Style Air Variable Trimmer
(CTA) ASP-150
APC style air variable trimmer capacitor. 3 - 30 pF @ 750v. Mounts with (2) #6 tapped holes on front. Slot adjust. 13/16" wide x 1-1/4" high. 1-3/16" long. Ceramic insulator.
$5 each - $4.50 (6+)
Air Variable Capacitor
4 - 30 pF @ 1070v RMS
Johnson PC Mount Air Variable Capacitor
(CTA) 235-7289
ASP air variable capacitor. 4 - 30 pF @ 1070v RMS. 0.032" gap. Bushing mount. 1-5/16"W x 1-3/16"H. 1-1/8" behind panel depth. 1-11/16" overall length. ASP P/N: 5-54. Made in the 1960's.
$11 each - $10 (6+), $8.50 (25+), $7.50 (100+), $5.90 (500+)
PC Mount Air Variable Capacitor
2.2 - 34 pF @ 325v DC
Johnson PC Mount Air Variable Capacitor
(CTA) 193-10-5
Johnson slotted vertical PC mount air variable capacitor. Machined brass, silver plated. 2.2 - 34 pF @ 325v DC. 0.5" x 0.56" ceramic base. 0.9" high to top of PCB. 0.16" leads.
$14 each - $13.25 (6+)
Mini APC Style Capacitor
4 - 75 pF @ 500v
Mini APC Capacitor
(CTA) 19C83583
Mini APC style capacitor. 4 - 75 pF @ 500v, lock nut. Mounts with (2) #6 tapped holes on front. Slot adjust. 13/16" wide x 15/16" high x 1-3/8" long. Ceramic insulator.
$10 each - $9 (6+)
E.F. Johnson Air Variable Capacitor
2 - 27 pF @ 250v

Air Variable Capacitor
(CAV) 193-8-59
E.F. Johnson air variable capacitor. 2 - 27 pF @ 250v, 16 plates. 1/8" L x 0.187" DIA slotted round shaft. Silver plate. 1-1/8" Total L x 0.50" W. Made in USA. NOS.
$15 each
E.F. Johnson Vertical PC Mount Air Variable Capacitor
2 - 12 pF

Air Variable Capacitor
(CAV) 189-6-8
E.F. Johnson vertical PC mount air variable capacitor. 2 - 12 pF. 0.68" Total L x 0.45" H x 0.45" W. Silver plating has some oxidation due to age. Alt P/N: 6142149-1. NOS.
$15 each
E.F. Johnson Air Variable Capacitor
1 - 10 pF @ 250v

Air Variable Capacitor
(CAV) 189-563
E.F. Johnson air variable capacitor. 1 - 10 pF @ 250v. 3/16" DIA slotted shaft, 1/4" L. 1" Total L. Silver plate oxidation present. NOS.
$15 each
E.F. Johnson Differential Air Variable Capacitor
2.5 - 23 pF @ 500v
Air Variable Capacitor
(CAV) 189-968-2
E.F. Johnson differential air variable capacitor. 2.5 - 23 pF @ 500v. 3/16" DIA shaft slotted. 1.25" Total L. 5/8" W x 1/2" HT. Silver plating may have some oxidation. NOS.
$21 each
Air Variable Trimmer
3 - 50 pF @ 400v
Air Variable Capacitor
(CTA) 34451-31
Hammarlund/Viking air variable trimmer. 3 - 50 pF @ 400v. Slot adjust, 1.33" L x 0.80" W x 0.94" H. Alt P/N: 9434-45-10031. NSN: 5910-00-943-0229
$39 each - $37(3+)
Air Variable Trimmer
6.5 - 140 pF
Air Variable Capacitor
(CAV) ESA682123-6
Hammarlund/Viking air variable trimmer. 6.5 - 140 pF. Single section, 100 Megohm DC resistance. 3" Total L x 1" W x 1.25" H. Made in USA. NSN: 5910-00-187-7758.
$975 each
APC Style Air Variable Trimmer
4.6 - 75 pF @ 500v
APC Style Air Variable Trimmer
(CTA) APC-75
APC style air variable trimmer capacitor. 4.6 - 75 pF @ 500v. Mounts with (2) #6 tapped holes on front. Slot adjust. 13/16" wide x 1-1/4" high. Ceramic insulator.
$6 each - $5 (6+), $4.25 (25+)
Air Variable Trimmer
5.1 - 96.7 pF @ 625v
Air Variable Trimmer
(CTA) S7307
Cardwell air variable trimmer capacitor. 5.1 - 96.7 pF @ 625v. Ceramic end plates. 19 plates. Lock nut shaft. 0.021" air gap. 1-7/16" x 1"H, 1-3/4" behind panel depth.
$22 each - $20.75 (6+), $19 (20+)
APC Style Air Variable Trimmer
5 - 100 pF @ 500v
APC Air Variable Trimmer
(CTA) P7761345-3
APC style air variable trimmer capacitor. 5 - 100 pF @ 500v, lock nut. Mounts with (2) #6 tapped holes on front. Slot adjust. 13/16" wide x 1-1/4" high x 1-5/8" long. Ceramic insulator. (Same as APC-100).
$11 each - $10 (6+)
Mini APC Style Capacitor
5 - 100 pF @ 500v
Mini APC Style Capacitor
(CTA) MAPC-100-C
Mini APC style capacitor. 5 - 100 pF @ 500v, lock nut. Mounts with (2) #6 tapped holes on front. Slot adjust. 13/16" wide x 15/16" high x 1-11/16" long. Ceramic insulator.
*** SOLD OUT ***
Air Variable Slotted Trimmer
4 - 100 pF @ 500v
APC Air Variable Trimmer
(CTA) 19C83598
Johnson APC slotted trimmer capacitor. 4 - 100 pF @ 500v. 0.53" mounting center by 6-32 face taps. 1-9/16"L x 3/4" x 1"H.
$18 each - $17 (6+), $15.75 (25+)
Air Variable Trimmer
9 - 111 pF @ 1070v RMS
APC Air Variable Trimmer
(CTA) 32-APL111
Air variable capacitor. 9 - 111 pF @ 1070v RMS. 0.032" air gap. Slot adjust. 1" x 1-3/8" x 2-3/8" overall length.
$29 each - $26.70 (6+), $24.25 (20+)
Vintage Air Variable Assembly
Includes 6 - 75 pF Variable
(CTA) 810-43
Vintage air variable assembly. Lamp socket for NE-45. Includes 6 - 75 pF variable. 2" x 2" x 1-3/4"H. Used, removed. Circa: 1950's.
$8 each
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