Coax Switches
78-0304 Dow-Key SP3T Three Position UHF Coax Switch (Pull)
In Stock
DowKey Series 78 selector switches are conservatively rated 1000w @ 50 MHz to 450w @ 450 MHz and 60 dB minimum isolation. DowKey quality, a good choice for the station.
Used * No longer available for export
MFR: Dow-Key Company
SKU: DK78-0304-P
78-0204 Dow-Key SPDT Two Position UHF Coax Switch (Pull)
In Stock
DowKey Series 78 selector switches are conservatively rated 1000w @ 50 MHz to 450w @ 450 MHz and 60 dB minimum isolation. DowKey quality, a good choice for the station.
Clean Good condition with some cosmetic wear
Used * No longer available for export
MFR: Dow-Key Co, USA
SKU: 78-0204-P
Note: Picture for reference only
Add to Cart
78-108 Dow-Key 2 Position Female BNC Coax Switch DC-2.5 GHz 1kw (Pull)
In Stock
Series 78 Dow-Key: Selector switches are conservatively rated @ 1000w @ 100 MHz or 200w @ 2.5 GHz. 50 dB minimum isolation, 0.1 dB max. insertion loss. DowKey quality, a good choice for the station. Rotor locks into place. Pull and turn for new position.
Shaft Dia: 1/4"
Good condition with some cosmetic wear.
Used * No longer available for export
MFR: Dow-Key (Division of Kilovac)
SKU: 78-108-P
78-109 Dow-Key 3 Position Female BNC Coax Switch DC-2.5 GHz 1kw (Pull)
In Stock
Series 78 Dow-Key: Selector switches are conservatively rated @ 1000w @ 100 MHz or 200w @ 2.5 GHz. 50 dB minimum isolation, 0.1 dB max. insertion loss. DowKey quality, a good choice for the station. Rotor locks into place. Pull and turn for new position.
Shaft Dia: 1/4"
Good condition with some cosmetic wear.
Used * No longer available for export
MFR: Dow-Key (Division of Kilovac)
SKU: 78-109-P
FA-8972 DOW-KEY SPDT Coaxial Transfer Switch 50 Ohm (NOS)
In Stock
Single Frequency Insertion Loss: 100.0 megahertz minimum and 500.0 megahertz maximum
Single Frequency Voltage Standing Wave Ratio: 100.0 megahertz minimum and 500.0 megahertz maximum
Switch Type: Transfer
Actuator Voltage in Volts: 48.0 minimum and 120.0 maximum
New Old Stock (Minor Scratches) * No longer available for export
MFR: Dow-Key Microwave for Department of Transportation. Federal Aviation Administration, USA
SKU: FA-8972
60-262842 Dow-Key SPDT 115vac Relay with "G" Options and DPDT Auxiliary Contacts (Pull)
In Stock
This 60 Series is a patented, high isolation option (“G” option) for transmit-receive applications. This option leaves the unused input open, and increases the isolation on the N/C connector to 85 dB at frequencies up to 500 MHz. This option reduces the maximum power rating of the N/C connector to 20 Watts, and will increase the VSWR of this terminal above approximately 400 MHz.
Designed for operation to a maximum power level of 1 kilowatt.
Coil Voltage: 115vac
Used * No longer available for export
MFR: Dow-Key Company
SKU: 60-262842
See Data Sheet for more information
Add to Cart
60-2704 Dow-Key 220vac SPDT Two Position UHF Coax Switch (NOS)
In Stock
The DowKey 60 Series coaxial relays are ruggedly constructed and designed for operation to a maximum power level of 1 kilowatt.
Coil Voltage: 220vac
New Old Stock * No longer available for export
MFR: Dow-Key Company
SKU: 60--2704
Add to Cart
78-0404 Dow-Key SP4T Four Position Coax Switch 50-450 MHz 1kw PEP (Pull)
In Stock
Dow-Key Series 78 selector switches are conservatively rated 1000w @ 50 MHz to 450w @ 450 MHz and 60 dB minimum isolation. Dow-Key quality, a good choice for the station.
Used * No longer available for export
MFR: Dow-Key, USA
SKU: 78-0404-P
78-0404 Dow-Key SP4T Four Position Coax Switch 50-450 MHz 1kw PEP (Pull)
In Stock
- Missing Knob
Dow-Key Series 78 selector switches are conservatively rated 1000w @ 50 MHz to 450w @ 450 MHz and 60 dB minimum isolation. Dow-Key quality, a good choice for the station.
Used * No longer available for export
MFR: Dow-Key, USA
SKU: 78-0404-NO-KNOB-P
77-260232 Dow-Key 115Vac BNC SPDT with 1 "C" Auxiliary Contact (NOS)
In Stock
These medium size, light-weight relays are designed and manufactured with gold plated RF contacts and silver plated outer conductors which give good RF performance to 1 GHz.
- Isolation: greater than 30dB
- Insertion loss: less than 0.15dB
New Old Stock * No longer available for export
MFR: Dow-Key
SKU: 77-260232