Re: TL-922 tube filament voltage.
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The meter one uses for AC mains or any AC measurements should be a TRUE RMS reading meter to be accurate.?
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Many of the higher quality Fluke
?meters (read higher priced ones) are True RMS reading AC meters but not all Flukes are.
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There are other brands that are as well.?
If they are the spec will say so.
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73,
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Walter
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From: [email protected]
<[email protected]> On Behalf Of Bob via groups.io
Sent: 18 December, 2024 8:10 AM
To: [email protected]
Subject: Re: [ham-amplifiers] TL-922 tube filament voltage.
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Lou, That's pretty lucky. I should check mine. The transformer for my house is on the pole at the street in front of my house ,about 100 feet away from the house.
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On Wed, Dec 18, 2024 at 5:22?AM Louis Parascondola via <Gudguyham=[email protected]> wrote:
Right, the guy said he used a Flike.? With line voltage at 252 I¡¯d be concerned about lots of things in my house.? I¡¯m lucky, I have a transformer for my house just for me!!
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On Tuesday, December 17, 2024, 2:34 PM, Bob via
<W4JFABob=[email protected]> wrote:
Lou, Good point on the meter. In the past if you talk to any electrical company about voltage they'll ask you "what meter are you using"?
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On Tue, Dec 17, 2024 at 2:02?PM Louis Parascondola via <Gudguyham=[email protected]> wrote:
Updating a service really doesn¡¯t raise the actual voltage coming into your house.? The only thing upgrading does is increase the potential current available to you.? With no load on your service the voltage
should not have changed.? I would make sure you use a good meter to be sure your voltage is actually as high as 250! ? ?Generally line voltage of around 244 or less does not require any intervention on filament voltage adjustment.? Before I did anything to
adjust filament voltage I would make definitely sure that at the pins the voltage was more than 5.3volts.? You definitely do not want less than 5 volts. ?
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On Tuesday, December 17, 2024, 12:28 PM, Kim Herron <w8zv@...> wrote:
I've appreciated all the info that I've gotten on the Kenwood TL-922A and I've ordered the relay switching board from Harbach.? While I'm in there, I'd like to address the filament voltage.? I've looked? for info on how I might do that,
but I'm not finding what I want.? Is there an easy way to do this that has been done and I can get the docs on??? Any info would be appreciated.? BTW, I've had my electrical service here upgraded and my line voltage here measures around 250 VAC.? So that filament
voltage SHOULD be addressed.
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