Coaxial Switches

Bird Coaxial Switch
50 Ohm
(SWC) 74
Bird coaxial switch. 50 ohm. 6 position. "N" connectors. DC-10 GHz up to 850 watts. Unused channel down 75 dB. Pull - turn - push to change position. Panel mount face by 10 - 32 screws @ 120º. Includes 5"D dial plate included. 3-1/2"D x 4". 3/8"D shaft x 1"L. Weighs 2.5 lbs. Removed from service, vintage time period.
 

Bird Coaxial Switch
10 Position
(SWC) 7181
Bird coaxial switch. 10 position. Pull - turn - push to change position. "N" female connectors. No knob or dial. Any 3/8" bore knob will work. Used, excellent condition.
$125 each - $109 (3+)
 
$195 each

Bird 7440 Coaxial Switch
1P3T / 75 Ohm

(SWC) BIRD7440
Bird 7440 coaxial switch. 1P3T, 75 ohm. "N" female connectors. 3/8" shaft. Pull, turn, push to switch. 3-1/2"D x 5" deep body. NSN: 5985-00-855-7193.
 

Spinner 3-1/8" Broadcast
Transfer Switch

(KC) BN94-19-28
Spinner 3-1/8" broadcast 4 port transfer switch. Manual selection. 25 pin connector for position indicator. 13-1/4" x 17". Used, removed but in new condition. 46 lbs. Made in Germany.
$165 each
 
$2,100 each

Rotary Transfer Switch
Motorized and Manual - 1-5/8" EIA
5 kw +/DC-1350 MHz

(KC) D40587-501
  • Description
  • Specifications
  • More Info

Avionic grade transfer switch can be operated manually or by internal fused 115 vac motor. Constant 115 vac is applied through connector that maintains operating temperature in cavity by thermostatically controlled heater.

28 vdc control voltage engages internal relays that wind motor and armature from position A to B and B to A, latching at both.

• VSWR: < or equal to 1.05
• Isolation: >65 dB
• Insertion Loss: < or equal to 0.05 dB, 50 impedance

All transfer switches have 4 ports and all operate the same way. Label ports 1, 2, 3 & 4. It has two positions, A & B. Position A: Ports 1 & 2 are made, 3 & 4 are made. Position B: Ports 1 & 3 are made, ports 2 & 4 are made.

Need we say more? What a switch! 10-1/4" diameter x 11-1/4" high. Includes blue print drawings & specifications. Made by Dielectric Communications. Ratings are very conservative. Quantity limited. Brand new, never used.
 

Waveline, Inc. SPDT Switch
Manual Change Over - 3-1/8" EIA
10 kw Average to 1 GHz

(KC) RAM-517
Highest quality 3-1/8" EIA two position switch uses "make before break" configuration. Double pole indicating circuitry. Specially made for U.S. Government in 1993 ($6,000).

60 dB minimum isolation. 0.1 dB maximum insertion loss. Applications include UHF-TV, FM Radio, etc.

8" x 10" high (+ 6" flange) x 15" wide. New in the box.
$2,795 each
 
$1,995 each

DPDT - BNC
Front Rear

(SWC) F-59505
Manual DPDT BNC switch made for Marines (ID plate states so). Can be removed from plate and mounted on your equipment. Large pointer knob on front. 500w, 500 MHz.
$75 each
 
 

Dow-Key
Coax Switches

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. 3" dial plate (on "C" model only) indicates switch position and is removable to place above panel.
(SWC) 78-107/8
2 position BNC. "107 & 108" models are indexed right and left hand. We supply both. Switches are new, never used, removed from new equipment.
$25 each - $21 (3+), $17 (10+)
(SWC) 78-109
3 position BNC. Switches are new, never used, removed from new equipment.
 
 
$35 each - $30 (3+), $25 (10+)
 
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