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Re: [Amps] THE SKINNY ON MY AL-82

To: "Carl" <km1h@jeremy.qozzy.com>, "Colin Lamb" <k7fm@teleport.com>, "Bill Turner" <dezrat@outlook.com>, "Amps group" <amps@contesting.com>
Subject: Re: [Amps] THE SKINNY ON MY AL-82
From: "Hardy Landskov" <n7rt@cox.net>
Date: Sun, 21 Dec 2014 19:11:20 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Carl,
I got a real laugh out of that. Thanks.
The point in my email was for people to think about amplifiers, early Hallicrafters, WRL, National, etc equipment that they are trying to restore or just get working. Take time before plugging the equipment into the wall because many times those pieces "will let out the smoke" and then you will have a real big problem on your hands. I recently purchased a Fluke 117--wow-- best DMM I ever had. That DMM has been invaluable to trouble shoot radios.
Ok Merry Christmas to all. I have to hit the road.
73 Hardy N7RT


----- Original Message ----- From: "Carl" <km1h@jeremy.qozzy.com> To: "Hardy Landskov" <n7rt@cox.net>; "Colin Lamb" <k7fm@teleport.com>; "Bill Turner" <dezrat@outlook.com>; "Amps group" <amps@contesting.com>
Sent: Sunday, December 21, 2014 6:17 PM
Subject: Re: [Amps] THE SKINNY ON MY AL-82


You havent lived until you find a 47K that became 1-2 Meg which is quite common in many old receivers and sourced at only 200-250VDC as screen droppers.

Over 50+ years of building and servicing tube gear Ive only found a handful that went down in resistance.

I have a conservative 10K of NOS carbon resistors and about half again in used condition going back to the late 20's

Carl
KM1H




----- Original Message ----- From: "Hardy Landskov" <n7rt@cox.net> To: "Colin Lamb" <k7fm@teleport.com>; "Bill Turner" <dezrat@outlook.com>; "Amps group" <amps@contesting.com>
Sent: Sunday, December 21, 2014 5:19 PM
Subject: Re: [Amps] THE SKINNY ON MY AL-82


It's been my experience that the 2 watt ones are the worst. I measured 1 meg resistors that have drifted up to 2.5 megs. So, think your high voltage is low and your power supply is going south? Measure the resistors first that feed the voltmeter.
73 N7RT



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