Paramount 220v version

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Offline Mach2

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Reply #30 on: September 10, 2014, 03:36:37 AM
Sorry to hijack this thread, but I'm about to assemble my Paramount 240V 300b kit and I'm more or less in the same situation. Our line voltage here can be stabilized at 220V +/- 5V with a voltage regulator and based on what I have read here it's not ideal for the Paramount kit.

How should I proceed with my build? Should I follow PJ post here, wiring the the choke using the 2A3 scheme and add in the caps later if necessary? Anything else I need to worry about? What should I expect for the resistance and voltage measurement?

Thanks!

PH

Online Paul Joppa

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Reply #31 on: September 10, 2014, 11:39:01 AM
The stock circuit, with a 300B, is +/-5% over the range 235v to 260v. The rewired choke is optimal in a 300B version at 225v input, and within +/-5% over the range 215 to 235v.

Paul Joppa

Offline Mach2

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Reply #32 on: September 11, 2014, 06:28:10 PM
Quote from: Paul Joppa on September 10, 2014, 11:39:01 AM
The stock circuit, with a 300B, is +/-5% over the range 235v to 260v. The rewired choke is optimal in a 300B version at 225v input, and within +/-5% over the range 215 to 235v.

Thanks, PJ! I'll go ahead with the plan and let you know how it goes.

PH

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