[Amps] Filament monitoring - LOOKING FOR ELMER

[Ken K6MR]

“There is no second chance with this stuff.”

Occasionally one gets lucky. I grabbed the plate cap of a 3-1000Z when I was 16. Ended up across the room before I knew what hit me.  Still have scars from the burn marks  It only traveled up my arm and out near my elbow where I was touching the cabinet.

I did blow the fuses though… :^)

After that I started using a B+ short “just in case”.

Ken K6MR


From: Bill Turner<mailto:dezrat at outlook.com>
Sent: Monday, April 11, 2016 10:38
To: Amps group<mailto:amps at contesting.com>
Subject: Re: [Amps] Filament monitoring - LOOKING FOR ELMER

------------ ORIGINAL MESSAGE ------------(may be snipped)

On Thu, 7 Apr 2016 22:49:24 -0400, Chris wrote:

>
>Ok, before we go exploring the circuitry a necessary statement, this
>amplifier contains voltages that will kill you dead if you put yourself in
>contact with them.

REPLY:

I would add one thing:  NEVER trust a volt meter that reads zero. What
you want is to see the meter read full voltage, then slowly decay to
zero when you turn the power off.  That you can trust. And just to be
safe, after you watch it decay to zero, take a jumper wire or
screwdriver and short the B+ to ground. There should be no spark.

There is no second chance with this stuff.

73, Bill W6WRT
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