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Converting Forte Model 3 to Model 1a
Converting Forte Model 3 to Model 1a
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Old 6th May 2015, 10:28 PM   #1
LouieTheG is offline LouieTheG  United States
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Default Converting Forte Model 3 to Model 1a

I believe I saw a post by Nelson some time ago that all that is required to convert a Model 3 to a Model 1a is to change the power supply ground plane and increase the bias. Is this correct and can someone help me with a schematic or other docs? I own both amps and want to convert the Model 3 to a Model 1a to use in a vertical biamp setup.
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Old 7th May 2015, 05:37 PM   #2
Nelson Pass is offline Nelson Pass  United States
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Converting Forte Model 3 to Model 1a
You want a lower voltage and a higher bias, that's about it. If you are at
120V, I think you can tap the transformer primary for 240 and run it at 120,
and that will lower the voltage.

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Old 7th May 2015, 05:42 PM   #3
LouieTheG is offline LouieTheG  United States
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Thank you, Nelson!
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