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Spark Gap Switches


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Pure tungsten is preferred for electrode use as it does not oxidize or require cleaning. Its intrinsic low resistance allows the electrodes to run cooler. Tool steel will perform reasonably well for Tesla coils but will run hotter and consequently not quench the spark as well as tungsten.

T-670 - High Powered Pressurized, Triggered Spark Gap, Brand New and Unused
This model of spark gap is used in many classified projects at Los Alamos National Laboratories
spark gap Applications
  • High powered pulse forming networks
  • Pulsed laser drivers  
  • High peak current injection  
  • Safety discharging capacitor banks
  • Marx inter-stage capacitor series switching  
  • Many high voltage switching applications
This item is prohibited for export or international sales, per the Code of Federal Regulations, Title 22, also known as the International Traffic in Arms Regulations (ITAR). Any international orders placed will not be accepted.
Specifications:
  • Maximum Peak Current: 100 kA
  • Voltage Range: 18-100kV
  • Timing Jitter (RMS):
  • Max Rep Rate: 10 Hz
  • Inductance: ~ 60 nH
  • Dielectric Gas: Dry Air or SF6
  • Dimensions: 4.25” square
  • Weight: 1.75 lb.
  • Minimum Trigger Voltage: >50% (CV / Charge Voltage)
  • Maximum Charge Transfer: 0.15 Coulomb
  • Maintenance Interval at Full Ratings: >10,000 Shots
T-670 - Spark switch ... Contact us for Pricing

Click for more data: T-670 Data

PLEASE NOTE THIS ITEM MAY NOT BE SOLD OUTSIDE THE UNITED STATES

TRIGATRON10 - Triggered open air Spark Gap Switch
for many low to medium energy applications
coil gun

The Triggered Spark Gap Switch discharges stored capacitor bank energy by way of an adjustable spark gap switch. It can be manually fired with a pushbutton switch, or set to auto-discharge at a specified voltage. An extension wire allows the operator to stand 10 feet or further away if safer manual ignition is required.

External connection lugs are heavy duty #6 block lugs with set screws assuring a positive connection. All connection lugs are positioned to help reduce power robbing stray inductance. Input power is 12V DC at 100mA.

FEATURES:
• Triggered 3/8" Tungsten Electrode Spark Switch, Up to 3 kilojoules at 10 kilovolts into proper load
• Uses heavy duty rectifiers and a dv/dt protection resistor with high u ferrite cores to direct hv trigger pulses
• #6 block lugs are used for all high current connections; wire size is 8 to 12 gauge
• All high current, high voltage carrying leads are sleeved into insulating polypropylene tubing
• Data is included that shows disconnection methods between controller/charger & storage capacitors for energies over 3000 J

Built-in trigger circuit initiates discharge by a 12 volt DC level.

This Triggered Spark Gap Switch is used as part of our HEP50 and HEP100 High Energy Pulser systems.

TRIGATRON10 - Triggered Spark Gap Switch ... $329.95

HEP10GAP - Triggered Air Gap
hep10gap

As used in our high powered pulser HEP90. SingIe event triggered switch will handle up to 3,000 joules at 3 to 10 kv stand off voltage. Excellent for small rail guns, coil guns, plasma guns, can and object crushing, wire exploding, plasma propulsion, magnetizing etc. Device uses 2 x 3/8" pieces of finished pure tungsten electrodes capable of many shots before cleaning. Includes our HEP9 plans.

HEP10GAP - Spark Gap w/HEP9 Plans ... $129.95

 

SPARK1 - Fan Cooled Double Gap System
Spark Gap Switch Excellent for Tesla Coils up to 48" Discharges

Intended for Tesla coils up to 15Kv at 180ma. Available with 3/8" machined tool steel or pure tungsten electrodes. Functions at 60 to 100 breaks/second. There are 3 electrodes: the 1 center electrode is 2.5" length; the 2 side electrodes are each 2" length. 115 Vac is required for the high output fan. Ready to use with connection lugs. Size is 5 x 5 x 4". Our BTC40, 50, and 60 use this setup.

Use two in series for a four point gap for Tesla power up to 15kV at 400ma producing up to 15’ sparks. Our BTC70 uses this setup.

SPARK1 - With 3/8" Tungsten Electrodes ... $149.95
SPARK1TS - With 3/8" Tool Steel (not Tungsten) Electrodes ... $89.95

 

SPARK05 - Convection Cooled Single Gap System
Spark Gap Switch Excellent for Tesla Coils up to 12"

Intended for Tesla coils up to 9kV at 60ma. Uses ¼" pure tungsten electrodes mounted on aluminum heat dissipating fins. Horizontal retaining screws provide easier access and adjustment of spark gap width. Base is polycarbonate with mounting holes. Includes connection lugs. Size is 5½" x 2 x 2". Used in our BTC30 giving 14” sparks.

SPARK05 - With ¼" x 1" Tungsten Electrodes ... $59.95

Specialized higher powered multiple use triggered and sealed spark switches

These are manufactured in Bangalore by a very reputable company that is sanctioned by many governments including the US. Products are made from top-quality materials and are precision made to stringent specification. If you do not see what you need please use contact form for your specs.


MODEL# IU26123TSG
coil gun Three terminal triggered spark switch. This high-powered unit has a self breakdown voltage rating of 26kV. And a current rating of 10 to 12kA. This equates out to a peak power in excess of 300 MW! Quality made part was an over run from a government contract costing over $1000 each. They are used on a small handheld EMP pulse gun experiment. We have a limited amount and can offer them to you for $696 each. See our many other spark switches on this page.
IU26123TSG - Three terminal triggered spark switch ... $796.00   Please allow 8 weeks for delivery.


MODEL# ZE/2T/17
Spark Switch
  • Self break-down two terminal Spark Gap
  • Break down voltage 17kV
  • Rep rate 1pps at 5kA
  • Peak current - 10KA
  • Size - Diameter approx. 90mm
ZE/2T/17 - Assembled ... $1042.37   Please allow 8 weeks for delivery.


MODEL# Z/3T/100PPS/25-70
Spark Switch
  • 3 Terminal Spark gap low inductance with continuous gas flow 10 Lit /minute
  • Rep rate 100PPS @ 1 KA
  • Voltage 25kV to 70kV
  • Peak current - 5KA
  • Size - Dia= 125mm; L=110mm
Z/3T/100PPS/25-70 - Assembled ... $1193.95   Please allow 8 weeks for delivery.


MODEL# Z/29/65
Spark Switch
  • 3 Terminal spark gap
  • Ranges available 10kV SBV to 40kV SBV
  • Rep rate 2pps at 2KA
  • Peak current - 20KA
  • Size - Diameter approx. 90mm Length approx. 120mm
Z/29/65 - Assembled ... $1272.60   Please allow 8 weeks for delivery.


MODEL# Z/15/4
Spark Switch
  • 3 Terminal high power Spark gap
  • Rep rate 1PPM @ 30 KA
  • Voltage 65KV
  • SBV voltage 120KV
  • Trigger voltage 35-48KV
  • Size Dia= 140mm; L=260mm
Z/15/4 - Assembled ... $1789.12   Please allow 8 weeks for delivery.


MODEL# ZE/3T/35
Spark Switch
  • 3 Terminal spark gap
  • Ranges available 15kV to 28kV
  • SBV voltage 35KV
  • Rep rate 2pps at 1.5KA
  • Peak current 20KA
  • Size - Diameter approx. 120mm
  • Trigger pulse 20kv 1usec
ZE/3T/35 - Assembled ... $1,257.73   Please allow 8 weeks for delivery.


MODEL# ZE/3T/5 to ZE/3T/20
Spark Switch
  • 3 Terminal spark gap
  • Ranges available 5kV to 20kV
  • Rep rate 1pps at 2kA
  • Peak current 5kA
  • Isotope assisted gap
  • Size - Diameter approx. 75 mm Length approx. 90mm
ZE/3T/5 - Assembled ... $1336.95   Please allow 8 weeks for delivery.
ZE/3T/10 - Assembled ... $1336.95   Please allow 8 weeks for delivery.
ZE/3T/15 - Assembled ... $1336.95   Please allow 8 weeks for delivery.
ZE/3T/20 - Assembled ... $1336.95   Please allow 8 weeks for delivery.


MODEL# ZE/3T/40
Spark Switch
  • 3 Terminal spark gap
  • Ranges available 24kV to 32kV
  • SBV voltage 40KV
  • Rep rate 1pps at 5KA, 10pps at 500A
  • Peak current 20KA
  • Size - Dia=150mm; H=110 to 200mm
  • Trigger pulse 20kv 1usec
ZE/3T/40 - Assembled ... $1775.87   Please allow 8 weeks for delivery.


MODEL# Z/31/72
Spark Switch
  • 3 Terminal adjustable spark gap
  • Ranges available 50kV to 125kV
  • Rep rate 5pps at 10KA
  • Peak current 50KA
  • Size - Dia=140mm; L=180mm
  • Requires continuous gas pressure of N2 @100 PSI (6KG/CM2)
Z/31/72 - Assembled ... $2252.80   Please allow 8 weeks for delivery.


MODEL# Z/31/111
Spark Switch
  • 3 Terminal adjustable spark gap
  • Ranges available 5kV to 80kV
  • Rep rate 1pps to 10 pps
  • Peak current 20KA
  • Size - D=160mm; L=260mm
  • Fully adjustable spark gap with gauge
Z/31/111 - Assembled ... $2044.14   Please allow 8 weeks for delivery.


MODEL# Z/31/111/FRP
Spark Switch
  • 3 Terminal adjustable spark gap
  • Ranges available 5kV to 200kV
  • Rep rate 1pps to 10 pps
  • Peak current 20KA
  • Size - D=160mm; L=260mm
  • Fully adjustable spark gap with gauge
  • Running pressure gap maximum pressure is 100PSI
Z/31/111/FRP - Assembled ... $2044.42   Please allow 8 weeks for delivery.


MODEL# ZE/3T/H2/30-100
Spark Switch
  • Spark gap unit with gas fill facilities for H2, N2/Ar2 @150PSI
  • Hyper fast switch times produce pico sec pulses
  • Ranges available 30kV to 100kV
  • Rep rate 100 pps 1KA
  • Peak current 20KA
  • Size - D=160mm; L=125mm
  • Pressurized gas continuous supply
ZE/3T/H2/30-100 - Assembled ... $2625.40   Please allow 8 weeks for delivery.

 

Pure Tungsten Electrodes
Pure Tungsten Electrodes

Precision machined and faced. Self cleaning and cool running, will not oxidize.

These are the electrodes (rods) only, with no terminals (no connecting mounting blocks or terminations).

tungsten rods
TUNG141 - One (1) Tungsten Electrode 1/4" diameter x 1" length ... $12.95
TUNG141(2) - Two (2) Tungsten Electrodes 1/4" diameter x 1" length ... $17.95
TUNG141(3) - Three (3) Tungsten Electrodes 1/4" diameter x 1" length ... $21.95
TUNG141(4) - Four (4) Tungsten Electrodes 1/4" diameter x 1" length ... $26.50
tungsten rods
TUNG38 - One (1) Tungsten Electrode 3/8" diameter x 2" length ... $34.95
TUNG38(2) - Two (2) Tungsten Electrode 3/8" diameter x 2" length ... $59.95
TUNG38(3) - Three (3) Tungsten Electrode 3/8" diameter x 2" length ... $82.95
TUNG38(4) - Four (4) Tungsten Electrode 3/8" diameter x 2" length ... $99.95
tungsten rods
TUNG3825 - One (1) Tungsten Electrode 3/8" diameter x 2.5" length ... $39.95
TUNG3825(2) - Two (2) Tungsten Electrode 3/8" diameter x 2.5" length ... $69.95
TUNG3825(3) - Three (3) Tungsten Electrode 3/8" diameter x 2.5" length ... $97.95
TUNG3825(4) - Four (4) Tungsten Electrode 3/8" diameter x 2.5" length ... $119.95

 

Pure Tungsten Electrodes Pair and Blocks
coil gun

A pair of pure tungsten electrodes with connecting mounting blocks and terminations.

TUNG141EP - 1/4" x 1" Tungsten Electrode Pair with Mounting Blocks ... $20.95
TUNG38EP - 3/8" x 2" Tungsten Electrode Pair with Mounting Blocks ... $61.95
TUNG3825EP - 3/8" x 2.5" Tungsten Electrode Pair with Mounting Blocks ... $71.95

Rail Gap Switches
High coulomb energy transfer switches intended for rail guns and other electro-kinetic devices. Requires nitrogen gas at 10PSI. A variety of switches are available.


Further Information on Available Rail Gap Switches

Please note that these items are built to order and require
24 weeks for construction and delivery.

Some sample prices of available rail gap switches:

Model
Self
Breakdown
Voltage In
KV DC
Max
Peak
Current
Electrode
Length
Gas Electrode
Diameter
Price Each
ZE/RG/ZERCINA 10-16 300kA 200mm N2 15mm $7700.62
ZE/RG/ZAR-AMJI 10-30 400kA 200mm N2 25mm $13523.36
ZE/RG/AM/RAIL GUN MOBILE 10-40 500kA 305mm N2 25mm $15381.76
ZE/RG/600/AM/MOD-5 10-40 1MA 600mm N2 12mm $30618.88
ZE/RG/600/AM/MOD-5/MIGHTY/ZAR 10-40 2.5MA 600mm N2 15mm $32072.96
ZE/RG/WEAP DETONA 20-50 200kA 200mm N2 15mm $6584.52
ZE/RG/MOD-2 20-50 500kA 305mm N2 25mm $17286.40
ZE/RG/AM/ZAR/FUSION 20-50 750kA 305mm N2 50mm $19969.28
ZE/RG/MOD-3 20-70 750kA 305mm N2 35mm $17736.96
ZE/RG/101/AM 20-120 750kA 305mm N2 50mm $24065.28
ZE/RG/102/AM/Z/MOD-4 20-120 1MA 305mm N2 50mm $27157.76
ZE/RG/PHANTOM 30-120 2.5MA 450mm N2 50mm $34120.96
ZE/RG/ZEUS/MOD-4/VARIANT 20-120 5MA 600mm N2 50mm $41248.00


Prices are subject to change, so please contact us for current pricing on these items, or with any other questions you might have.