Yeah, you're not supposed to let the smoke out because things stop working
if you do.
Steve
----- Original Message -----
From: "Pat Byrne" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, February 28, 2011 21:09
Subject: Re: RFI Saga continued
> And now things break Steve and you haven't even let the smoke out of
> them!!PatAt 07:39 PM 2/28/2011, you wrote:
>>Well, Pat, I never tried that trick with the plate cap of a 6146, but I
>>have
>>gotten clipped a time or two by voltage from the flyback transformer. I
>>once came in contact with a few hundred volts on the output side of a
>>bridge
>>rectifier circuit I built, and that felt like someone hit my finger with a
>>hammer. Oh yes, and then there's the times I was trying to adjust some
>>coils on the underside of a hollow-state Heathkit receiver and got jolted
>>by
>>the plate voltage on one of the tubes. Life is just so dull in today's
>>solid-state low-voltage world.
>>
>>Steve
>>
>>----- Original Message -----
>>From: "Pat Byrne" <[log in to unmask]>
>>To: <[log in to unmask]>
>>Sent: Monday, February 28, 2011 18:27
>>Subject: Re: RFI Saga continued
>>
>>
>> > Sounds like an old guy who ripped up his knuckles coming out of the
>> > back of an old TV set!! Or if you put your palm on the plaate cap of
>> > an on-the-air 6146 it smells like burning matches and leaves a hole
>> > in your hand!!
>> > The young guys missed all the fun Steve!!
>> > Pat, K9JAuAt 11:28 AM 2/28/2011, you wrote:
>> >>Tom,
>> >>
>> >>As long as you've unplugged the supply, there's nothing to worry about.
>> >>The
>> >>caps in there probably don't have much more than 20 volts, and you
>> >>probably
>> >>wouldn't feel anything even if you happened to put your fingers
>> >>directly
>> >>across them. Getting zapped was much more of a reality back in the
>> >>good
>> >>old
>> >>days of tubes when the voltage across a filter cap could range anywhere
>> >>from
>> >>100 to 1000 volts (more if you were playing around inside a TV set's
>> >>high
>> >>voltage section). If you're still concerned about discharge, just poke
>> >>around inside the supply with a screwdriver, but I really don't think
>> >>there's any reason for concern.
>> >>
>> >>Steve
>> >>
>> >>----- Original Message -----
>> >>From: "tom behler" <[log in to unmask]>
>> >>To: <[log in to unmask]>
>> >>Sent: Monday, February 28, 2011 06:59
>> >>Subject: Re: RFI Saga continued
>> >>
>> >>
>> >> > Steve:
>> >> >
>> >> > Yeah, I was afraid of that.
>> >> >
>> >> > I can't believe they make the thing so hard to work with.
>> >> >
>> >> > When I do take the cover off, if it comes to that, I'm going to have
>> >> > to
>> >> > figure out how I'm going to work safely in there without zapping
>> >> > myself
>> >> > with the discharge from the capacitors. If anyone has some
>> >> > fullproof
>> >> > way
>> >> > to
>> >> > do that, let me know. Otherwise, I may have to get some sighted
>> >> > assistance
>> >> > over here.
>> >> >
>> >> > 73 from Tom Behler: KB8TYJ
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "Steve Dresser" <[log in to unmask]>
>> >> > To: <[log in to unmask]>
>> >> > Sent: Sunday, February 27, 2011 10:16 PM
>> >> > Subject: Re: RFI Saga continued
>> >> >
>> >> >
>> >> > Tom,
>> >> >
>> >> > You'll probably have to take the cover off to tighten that lug. If
>> >> > you
>> >> > don't tighten it, you won't be able to use it whether you want to or
>> >> > not.
>> >> >
>> >> > Steve
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "tom behler" <[log in to unmask]>
>> >> > To: <[log in to unmask]>
>> >> > Sent: Sunday, February 27, 2011 22:03
>> >> > Subject: RFI Saga continued
>> >> >
>> >> >
>> >> >> Hey, all.
>> >> >>
>> >> >> Well, I tried John's suggestion of eliminating the ground
>> >> >> connection
>> >> >> between
>> >> >> the ground lug on the Astron power supply, and the common ground of
>> >> >> my
>> >> >> window feed through panel leading to the ground rod outside, and no
>> >> >> joy.
>> >> >>
>> >> >> The RFI problem still exists.
>> >> >>
>> >> >> And, now, I have another little issue.
>> >> >>
>> >> >> The ground lug on the Astron, just to the right of the left-hand
>> >> >> corner
>> >> >> is
>> >> >> loose, and I can't seem to get it nice and tight again.
>> >> >>
>> >> >> This is not a major issue, since I may not use the ground
>> >> >> connection
>> >> >> again,
>> >> >> but does anyone have any brilliant ideas as to how to tighten the
>> >> >> ground
>> >> >> lug
>> >> >> back up again, short of taking the cover off of the power supply,
>> >> >> and
>> >> >> getting at it from the inside?
>> >> >>
>> >> >> It still amazes me that they made the ground connection so hard to
>> >> >> find,
>> >> >> and
>> >> >> so tricky to use.
>> >> >>
>> >> >> I think I'm going to bed now before I do any more damage. (grin)
>> >> >>
>> >> >> 73 from Tom Behler: KB8TYJ
>> >> >>
>> >> >
>> >
>
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