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Hoffman Amps Forum image Author Topic: nagging thought  (Read 2334 times)

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Offline shooter

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nagging thought
« on: September 25, 2015, 08:04:01 pm »
the fogs not lifting on this one

1. will it even work? :dontknow: If so will it provide 60hz hum cancelation?
Went Class C for efficiency

Offline sluckey

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Re: nagging thought
« Reply #1 on: September 25, 2015, 09:32:45 pm »
I worked on a couple radar systems that had filaments wired for 12 VAC CT just as you have shown.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Willabe

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Re: nagging thought
« Reply #2 on: September 25, 2015, 09:43:15 pm »
Here's 2 good ways;

Offline sluckey

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Re: nagging thought
« Reply #3 on: September 25, 2015, 09:49:16 pm »
That's good for 6V operation. But he's wired for 12V operation. Kinda like someone's breadboard.  :wink:
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline PRR

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Re: nagging thought
« Reply #4 on: September 25, 2015, 10:15:09 pm »
> If so will it provide 60hz hum cancelation?

No.

And it is 3 wires when 2 would do.

Offline Willabe

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Re: nagging thought
« Reply #5 on: September 25, 2015, 10:40:20 pm »
That's good for 6V operation. But he's wired for 12V operation. Kinda like someone's breadboard.  :wink:

 :icon_biggrin:

Ain't no thang

How 'bout this for 12.6vac heaters;
 
« Last Edit: September 25, 2015, 10:52:50 pm by Willabe »

Offline shooter

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Re: nagging thought
« Reply #6 on: September 26, 2015, 12:58:17 pm »
Thanks guys, was pretty sure it would work, but only if it came with hum cancelling benefits

dave
Went Class C for efficiency

 


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