ELP-362D emergency locating beacon

http://www.benthos.com/pdf/elp362D_001815_revK.pdf



The ELP-362D Emergency Locator Beacon is a durable, water-activated,
underwater location aid.  The beacon transmits an acoustic signal at 37.5 kHz
once every second for 30 days after activation with the standard lithium battery,
or 90 days with an optional lithium battery.

Eimac 7815al

High-mu, ceramic-metal, planar power triode designed for use as grid or plate pulsed oscillator or amplifier at frequencies up to 3GHz. Conduction cooled. 
Special quality for airline (AL) service. 


7815AL Eimac the planar-type high ・ ceramic and metal is μ 3,000 MHz band pulsed triode amplification. The cathode, oxide film on Plate is a conduction cooling system.When the plate voltage is 3,500 V, C at 2,000 W-class push-pull amplifier can be obtained. Have been used in radar equipment ー.