Coax Switches

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

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

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

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

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

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

• Shaft Diameter: 1/4"
• No Dial plate
• No Knob
• Size: 3" Diameter x 1.1" Wide (Body) x 1.84" Wide (overall with connectors)

Used * No longer available for export 
MFR: Dow-Key Company
SKU: 78-0444-P

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

• 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