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Need Help with Voltage Adjustment

Moderator: Roscoe Primrose

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Roscoe Primrose

Post subject: Re: Need Help with Voltage Adjustment

Posted: October 1st, 2015, 6:37 pm

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Joined: February 28th, 2013, 10:38 am
Posts: 1687

Grover Gardner wrote:

David, thanks a lot, that's big help. I think I've found a way to get more B+ to the input stage.

That's one advantage of choke loading, output voltage can swing higher than B+...

Roscoe

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Stuart Polansky

Post subject: Re: Need Help with Voltage Adjustment

Posted: October 6th, 2015, 8:00 am

Joined: December 14th, 2013, 2:19 pm
Posts: 948

Roscoe Primrose wrote:

Grover Gardner wrote:

David, thanks a lot, that's big help. I think I've found a way to get more B+ to the input stage.

That's one advantage of choke loading, output voltage can swing higher than B+...

Roscoe

Where's the "LIKE" button?

:handgestures-thumbupleft:

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J-ROB

Post subject: Re: Need Help with Voltage Adjustment

Posted: October 6th, 2015, 8:15 am

Joined: April 20th, 2014, 5:21 pm
Posts: 233

Use an OD3 and drop half of the 150V across the plate resistor. Stay 100% obsolete technology.

Don't get sucked into that newfangled thinking. It's a commie plot.

You can also use a current source in the cathode and rely on Mr. Allen and Mr Bradley for plate loading.

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