Doorknob Transmitting Capacitors: Mica & Ceramic

MICA Doorknob Capacitor
500 mmF @ 15 kv

MICA Doorknob Capacitor

(CFT) 55-42

MICA doorknob capacitor. Unthreaded solder posts. 1-1/8"d x 1.08"l. 2" overall length. Solder post capacitors make the best antenna traps.
$15 each - $13.50 (5+), $12 (20+), $11 (50+)

HV Ceramic Doorknob Capacitor
470 pF @ 20 kv

HV Ceramic Doorknob Capacitor, Spraque 470 pF 20 kv

(CFT) 715C0470-20B

Sprague high voltage ceramic doorknob capacitor. Unmarked, 470 pF @ 20 kv. Brown. 7/8" diameter x 1" high. Reduced price!!
$15 each - $13 (10+), $10 (50+)

HV Ceramic Doorknob Capacitor
470 pF @ 20 kv

(CFT) 715C0650-20B

Sprague high voltage ceramic doorknob capacitor. Marked "650 pF", but measures 470 pF @ 20 kv. Brown. 7/8" diameter x 1" high. Reduced price!!
$15 each - $13 (10+)

HV Ceramic Doorknob Capacitor
650 pF @ 18 kv

(CFT) 715C0650-18

Sprague high voltage ceramic doorknob capacitor. 650 pF @ 18 kv. Red. 7/8" diameter x 1" high. Reduced price!!
$17 each - $15 (10+), $12 (50+)

HV Ceramic Doorknob Capacitor
650 pF @ 18 kv

(CFT) 715C0650-18G

Sprague high voltage ceramic doorknob capacitor. 650 pF @ 18 kv. Green. 7/8" diameter x 1" high. Reduced price!!
$15 each - $13 (10+), $10 (50+)

HV Ceramic Doorknob Capacitor
650 pF @ 20 kv

(CFT) 715C0650-20

Sprague high voltage ceramic doorknob capacitor. 650 pF @ 20 kv. Red. 7/8" diameter x 1" high. 8 - 32 threads. Reduced price!!
$20 each - $18 (10+), $15 (50+)

HV Ceramic Doorknob Capacitor
690 pF @ 20 kv

(CFT) 715C0690-20

Cera-Mite 715C high voltage ceramic doorknob capacitor. 690 pF, 20 kv. 0.972" diameter x 1" high.
$20 each - $18 (10+), $15 (50+)

High Stability Doorknob
750 pF - 40kv DC

dhs302sv571z

(CFT) DHS302SV571Z

Murata high stability doorknob. 1-1/8" diameter x 1-5/8" high. #8 thread on top, bottom. This capacitor is printed with a part number indicating it is 570 pF. It is actually 750 pF. Dyslexic factory worker!
$30 each - $26 (10+)
Sprague High Voltage Ceramic Doorknob Capacitors
 
Part Number Pic
Capacity /
Size
Voltage Size / Notes Price $ (10+) $ (50+)  
(CFT) 20DK-T5 - 500 pF 20 kv 1"D x 1"H, Vintage N.O.S., D/C 1961,
Available in these styles
35.00 - - Add
(CFT) 715C0500-20 Pic 500 pF 20 kv 7/8"D x 1"
Red - No markings
19.00 17.50 - Add
(CFT) 715CZ500-30 Pic 500 pF 30 kv 1"D x 1-5/16", 30DKT5, Red 35.00 - - Add
(CFT) 30DK0500-30 Pic 500 pF 30 kv 1-1/4"D x 1-1/4", 30DKT5, Green 38.00 - - Add
(CFT) 720C0600-40 - 600 pF 40 kv 1-1/2"D x 1-1/2"H 45.00 - - Add
(CFT) 715C0650-18G Pic 650 pF 18 kv 7/8"D x 1", Green
*** Reduced Price ***
15.00 13.00 10.00 Add
(CFT) 715C0650-18 Pic 650 pF 18 kv 7/8"D x 1", Red
*** Reduced Price ***
17.00 15.00 12.00 Add
(CFT) 715C0650-20B Pic 650 pF 20 kv 7/8"D x 1", Brown
*** Reduced Price ***
15.00 13.00 10.00 Add
(CFT) 715C0650-20 Pic 650 pF 20 kv 7/8"D x 1", 8 - 32 threads
*** Reduced Price ***
20.00 18.00 15.00 Add
(CFT) T3M30KTD12 - 1200 pF 30kv DC 2-1/8"D x 1-1/8"H
8-32 threads, Cera-mite
42.00 - - Add
(CFT) 715CZ2700-40 - 2700 pF 40kv DC 2-3/8"D x 1-1/2"H
8-32 threads, Cera-mite
65.00 - - Add
(CFT) 715C-Z462 - 4600 pF 15 kv 2-1/16"D x 15/16"H
#8 thread each end
- - SOLD OUT
(CFT) 30DKD47 - 4700 pF 30kv DC 2-1/4"D x 1-1/16"H,
8-32 threads, Cera-mite
75.00 - - Add

dhs302sv571z
TDK High Voltage Ceramic Strontium Titanate Doorknob Capacitors
High Current / Quick Discharge
 
Part Number Capacity / Size Voltage Size Price  
(CFT) TDK-190-30 190 pF 30 kv 3/4" x 1"L SOLD OUT
(CFT) UHV-11A-102K 1000 pF 50 kv 1.87"D x 1.25"H 69.00 Add
(CFT) TDK-2000-40 2000 pF 40 kv 2-1/4" x 1-1/4"H 65.00 Add
(CFT) UHV-9AT-202K40 2000 pF 40 kv 2-1/4" x 1-1/4"H 65.00
60.00 (12+)
Add
(CFT) TDK-2700-30 2700 pF 30 kv 7/8" x 2-3/8"H
Mfg. P/N: UHV-6A-272K30
49.00 Add

dhs302sv571z
Murata High Voltage Ceramic Doorknob Capacitors - High Current / Quick Discharge
 
Part Number Capacity / Size Voltage Size Price  
(CFT) 281M-280-20 280 pF 20 kv 0.790"D x 0.798" high 21.00 Add
(CFC) DHG20B2M511K30KM 510 pF 30kvDC 0.825"D x 0.470" thick, Pic 5.95
5.50 (10+)
4.90 (50+)
4.30 (200+)
Add
(CFT) 561K-560-50 560 pF 50 kv 1-1/2"D x 1-1/4" high 55.00 Add
(CFT) 571Z-570-40 570 pF 40 kv 1-1/8"D x 1-1/2"L 49.00 Add
(CFT) 601Z-600-20 600 pF 20 kv 15/16"D x 1"L 35.00 Add
(CFT) 701M-700-40 700 pF 40 kv 1-1/2"D x 1-1/4" high 49.00 Add
(CFT) 781Z-780-30 780 pF 30 kv 1-3/16"D x 1-5/16" high 37.00 Add
(CFT) 921Z-920-40 920 pF 40 kv 1-1/2"D x 1-1/2" high 49.00 Add
(CFT) 272K-2700-40 2700 pF 40 kv 2-3/8" x 1-3/8"H 59.00 Add
(CFT) 272Z-2700-40 2700 pF 40 kv 2-3/8" x 1-3/8"H 59.00 Add
(CFT) 482Z-4800-20 4800 pF 20 kv 2-3/8"D x 1"H 99.00 Add

Erie Capacitor
2500 pF - 30kv

Erie Capacitor 2500pf 30kv

(CFT) 253M2500-30

Erie capacitor. 253M. 2500 pF, 30kv. 1-7/8" diameter x 1-1/4" high.
$98 each

Cast Mica Capacitor
2500 pF - 40kv

Cast Mica Capacitor 2500pf 40kv

(CFT) RF190E

CRL cast mica capacitor. 2500 pF, 40kv. 1-3/4" high x 2" diameter.
$119 each

Doorknob Capacitor
2650 pF - 6kv AC

dhs302sv571z

(CFT) SPR2650-6KAC

Sprague doorknob capacitor. 2650 pF, 6kv AC. #10 threads. 2-1/8" diameter x 1-1/4" high.
$59 each

Doorknob Capacitor
2700 pF - 6kv AC

dhs302sv571z

(CFT) SPR2700-6KAC

Sprague doorknob capacitor. 2700 pF, 6kv AC. #10 threads. 2-1/8" diameter x 1-1/4" high.
$59 each

Doorknob Capacitor
2900 pF - 6kv AC

dhs302sv571z

(CFT) 715C2900-6KAC

Sprague doorknob capacitor. 715C. 2900 pF, 6kv AC. #10 threads. 2-1/8" diameter x 1-1/4" high.
$59 each

Sprague Doorknob Capacitors
10 pF - 12 kv

(CFT) 221M353

Sprague "Fabmica" high stability doorknob. 15 amps RF current. 1-3/8"D x 1-1/4" high. 8-32 thread on top, bottom.
$16 each - $15 (3+), $14 (10+)

2500 pF - 20kv DC

(CFT) FAB2500-20K

As above but 2"D x 1-3/8" high. #10 thread on top, bottom.
$85 each

2500 pF - 30kv DC

(CFT) FAB2500-30K

As above but 2-3/16"D x 1-9/16" high. #10 thread on top, bottom.
$99 each

Sprague Doorknob Capacitors
4000 pF - 30 kv

(CFT) FAB4000-30K

As left but 1-11/16" x 1-1/2".
$149 each

4300 pF - 20kv DC

(CFT) FAB4300-20K

As left but 2-1/2"D x 1-3/8" high. #10 thread on top, bottom.
$109 each

5000 pF - 20kv DC

(CFT) FAB5000-20K

As left but 2-5/8"D x 1-3/8" high. #10 thread on top, bottom.
$119 each

Sangamo Type 271
Cube Capacitors

(CFT) 271-500

Sangamo type 27130B501J00 cube cap. 500 pF, 3kv, 2 amps. 1" x 1-1/4" x 1-1/4".
$20 each

Sangamo Type 271
Cube Capacitors (cont'd)

(CFT) 27130B251J00

Sangamo type 271 cube cap. 250 pF, 3 kv, 1.3 amps. 1" x 1-1/4" x 1-1/8".
$25 each

(CFT) 27130B202J00

Sangamo type 271 cube cap. 0.002 µF, 3 kv, 4.3 amps. 1" x 1-1/4" x 1-1/8".
$57 each

Dual Capacitor
500 pF - 15kv DC

(CFT) D500-15

Each capacitor is 500pF 15kv. Spade terminals. Looks like microwave oven loading caps.
*** SOLD OUT ***

Cast Mica Coupling / Blocking Cap
4000 pF - 25kv DC

Made by LCC

(CFT) HIQ4000-25K

Cast doorknob similar to photo above left. 15 amps RF current. 2-5/8" diameter x 7/8" high. 8-32 threads.
$92 each

NCL Capacitor
0.5 µF - 2.3 / 3.8 / 4.5kv DC

(CFT) GT1710

NCL capacitor. 0.5 µF, ±5%. 2300v DC, 3800v DC peak, 4500v DC surge. 5/16" threaded ends. 2" diameter x 4", 4-1/4" overall length. P/N: 80025-523-01.
$139 each

NCL Capacitor
0.5µF - 3.5 / 5.6 / 8kv DC

(CFT) ZC3154

NCL capacitor. 0.5 µF, ±5%. 3500v DC, 5600v peak, 8000v surge. 5/16" threads. 2.29" diameter x 4.98", 5.35" overall length. P/N: 80025-523-09.
$179 each
NCL Capacitor
2 µF - 2.3 / 3.6 / 4.5kv DC

(CFT) GT1612

NCL capacitor. 2 µF, ±5%. 2300v DC, 3600v DC peak, 4500v DC surge. 5/16" threads. 3.55" diameter x 3.88", 4.25" overall length. P/N: 80025-523-02.
$225 each
Double Feedthru HV Filter Capacitor Assembly
500 pF / 15kv

(CFT) HFC2M3644

Double feedthru HV filter capacitor assembly. 500 pF, 15kv. Ceramic, Class II. 0.952" x 2.29" mounting plate.
$18 each - $15 (10+)