Doorknob Transmitting Capacitors: Mica & Ceramic
Sprague High Voltage Ceramic Doorknob Capacitors
 
Part Number
Pic
Capacity /
Size
Voltage
Size / Notes
Price
$ (10+)
$ (50+)
 
(CFT) 715C0350-20 - 350 pF 20 kv 3/4"D x 1"H
25.00
- -
(CFT) 715C0460-30 - 460 pF 30 kv 1"D x 1-1/4"H
45.00
- -
(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
- -
(CFT) 715C0500-20 Pic 500 pF 20 kv 7/8"D x 1"
Red - No markings
19.00
17.50
-
(CFT) 715CZ570-40 - 570 pF 40 kv 1-1/4"D x 1-1/2"H
59.00
- -
(CFT) 720C0600-40 - 600 pF 40 kv 1-1/2"D x 1-1/2"H
59.00
- -
(CFT) 715C0650-18G Pic 650 pF 18 kv 7/8"D x 1"
Green
28.00
25.00
22.00
(CFT) 715C0650-18R Pic 650 pF 18 kv 7/8"D x 1"
Red
30.00
27.00
23.00
(CFT) 715C0650-18B Pic 650 pF 20 kv 7/8"D x 1"
Brown
28.00
25.00
22.00
(CFT) 715C0650-20 Pic 650 pF 20 kv 7/8"D x 1"
8 - 32 threads
33.00
30.00
27.00
(CFT) T3M30KTD12 - 1200 pF 30 kvdc 2-1/8"D x 1-1/8"H
8-32 threads, Cera-mite
48.00
- -
(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 30 kvdc 2-1/4"D x 1-1/16"H,
8-32 threads, Cera-mite
129.00
- -

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
39.00
(CFT) TDK-2000-40 2000 pF 40 kv 2-1/4" x 1-1/4" high
129.00
(CFT) UHV-9AT-202K40 2000 pF 40 kv 2-1/4" x 1-1/4" high
139.00
(CFT) TDK-2700-30 2700 pF 30 kv 2-3/8" x 7/8"
Mfg. P/N: UHV-6A-272K30
119.00

dhs302sv571z
Murata High Voltage Ceramic Doorknob Capacitors - High Current / Quick Discharge
 
Part Number
Capacity / Size
Voltage
Size
Price
 
(CFT) 351Z-350-20 350 pF 20 kv 0.791"D x 0.956" high
39.00
(CFT) 561K-560-50 560 pF 50 kv 1-1/2"D x 1-1/4" high
89.00
(CFT) 601Z-600-20 600 pF 20 kv 15/16"D x 1"L
35.00
(CFT) 701M-700-40 700 pF 40 kv 1-1/2"D x 1-1/4" high
59.00
(CFT) 571Z-570-40 750 pF 40 kv 1-3/16"D x 1-1/2"L
38.00
(CFT) 781Z-780-30 780 pF 30 kv 1-3/16"D x 1-5/16" high
43.00
(CFT) 202K-2000-40 2000 pF 40 kv 2-1/4" x 1-1/4"
SOLD OUT
-
(CFT) 272K-2700-40 2700 pF 40 kv 2-3/8" x 1-3/8"H
159.00
(CFT) 482Z-4800-20 4800 pF 20 kv 2-3/8"D x 1"H
99.00

High Stability Doorknob
750 pF - 40 kvdc

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!
 

Doorknob Capacitor
2650 pF - 6 kvac

dhs302sv571z
(CFT) SPR2650-6KAC
Sprague doorknob capacitor. 2650 pF, 6 kvac. #10 threads. 2-1/8" diameter x 1-1/4" high.
$30 each - $26 (10+)
 
$115 each

Doorknob Capacitor
2700 pF - 6 kvac

dhs302sv571z
(CFT) SPR2700-6KAC
Sprague doorknob capacitor. 2700 pF, 6 kvac. #10 threads. 2-1/8" diameter x 1-1/4" high.
 

Doorknob Capacitor
2900 pF - 6 kvac

dhs302sv571z
(CFT) 715C2900-6KAC
Sprague doorknob capacitor. 2900 pF, 6 kvac. #10 threads. 2-1/8" diameter x 1-1/4" high.
$115 each
 
$129 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 - 20 kvdc

(CFT) FAB2500-20K
As above but 2"D x 1-3/8" high. #10 thread on top, bottom.
$85 each

2500 pF - 30 kvdc

(CFT) FAB2500-30K
As above but 2-3/16"D x 1-9/16" high. #10 thread on top, bottom.
 

Sprague Doorknob Capacitors
4000 pF - 30 kv

(CFT) FAB4000-30K
As left but 1-11/16" x 1-1/2".
$149 each

4300 pF - 20 kvdc

(CFT) FAB4300-20K
As left but 2-1/2"D x 1-3/8" high. #10 thread on top, bottom.
$109 each

5000 pF - 20 kvdc

(CFT) FAB5000-20K
As left but 2-5/8"D x 1-3/8" high. #10 thread on top, bottom.
$119 each
 
$99 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".
 

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".
$20 each
 
$57 each

Dual Capacitor
500 pF - 15 kvdc

(CFT) D500-15
Each capacitor is 500pF 15kv. Spade terminals. Looks like microwave oven loading caps.
 

Vintage Capacitor
1000 pF - 10 kv

(CFC) SPRAG-1000
Sprague vintage 1961 capacitor. 1000 pF, 10 kv. 8-32 threads. 1-1/8"D x 3/4"H.
$15 each
 
$35 each

 

Cast Mica Capacitor
0.22 µF - 3000v

(CFT) FPG66Y0224J
TPC cast mica capacitor. 0.22 µF, 3000v, 16 amp. 2" diameter x 2-1/4" high.
 
 
$59 each
 

Cast Doorknob Capacitor
1000 pF - 10 kvdc

Doorknob w / Studs
(CFC) HIQ-1000-10
Cast doorknob. 5 amps RF current. 1-1/2" diameter x 1/2" high. 8-32 threads.
$18 each - $17 (5+), $16 (20+), $15 (50+)

2000 pF - 5 kvdc

(CFT) HIQ2000-5
Cast doorknob similar to photo. 20 amps RF current. 2" diameter x 1-1/2" high. 1/4 threads.
 

Cast Mica Coupling / Blocking Cap
0.22 µF - 2500 vdc

Made by LCC
(CFT) FPG66-9215A
Cast mica coupling / blocking cap. 0.22uF 2500vdc, 16 amps eff.,10% tolerance. 2-1/6" diameter x 2-3/4" high. 3/16" threads. Hardware included.
$49 each

4000 pF - 25 kvdc

(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.
$89 each
 
$92 each
 
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