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Aug 25, 2016

Lightning Strikes the Rabbit Repeater



The 2N6505 Silicon Controlled Rectifier blown apart on the regulator board in the Astron SL-11A power supply.

Category: General
Posted by: W5BFF

At approximately 4:00pm, lighting struck the tower hosting the Rabbit Repeater antenna.  After checking out all of the equipment, it appears the Astron SL-11A linear power supply was the only piece of equipment damaged.  Damage to the regulator board is pictured above.

Atlanta Rabbits Amateur Radio Club repeater trustee Jerry A. Goodson W5BFF had a spare power supply, and was able to get the repeater back on the air within an hour after the strike.  

"I thought I was going to get lucky and fix everything with a $.50 fuse," Goodson said during the Amateur Radio Club of Shreveport (ARCOS) weekly club net.  "I replaced the blown fuse, and the power supply came on long enough to let a bunch of smoke out of that box."  

A close inspection revealed the insulation on some wires were melted, and the Silicon Controlled Rectifier (SCR) on the regulator board was blown.  Goodson has a spare regulator board he purchased last year, but didn't need.  The repeater is now powered by an Astron SL-15R until the damaged power supply is repaired.

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