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Old 1st March 2019, 11:58 AM   #141
32y0 is offline 32y0  Netherlands
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Is it possible to use the ISS with the DG300B? If so, should parts of the soft-start on the power supply board be omitted?
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Old 1st March 2019, 05:06 PM   #142
tomchr is offline tomchr  Canada
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Sure. You can do that. Just short out the CL-90 on the DG300B supply board. You can omit the relay on the DG300B supply board as well.

Take the mains output of the ISS from terminals 1 and 4 on the transformer primary connector. Bring those to the mains input terminals of the DG300B supply board.

It sounds more complicated than it is.

Tom
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Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
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Old 1st March 2019, 05:11 PM   #143
tomchr is offline tomchr  Canada
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I'm down to 11 DG300B board sets, by the way.

If you prefer to avoid the SMD soldering, I have six of the 5.0 V and seven of the 6.3 V versions of the Filament Regulator in stock.

Tom
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Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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Old 19th March 2019, 02:22 AM   #144
tomchr is offline tomchr  Canada
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Six board sets left in the stack.

Tom
__________________
Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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Old 19th March 2019, 09:35 PM   #145
tomchr is offline tomchr  Canada
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Four board sets left.

Tom
__________________
Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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Old 24th March 2019, 04:15 PM   #146
tomchr is offline tomchr  Canada
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Three board sets left.

Tom
__________________
Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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Old 24th March 2019, 08:43 PM   #147
tomchr is offline tomchr  Canada
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One board set left.

Tom
__________________
Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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Old 24th March 2019, 10:12 PM   #148
tomchr is offline tomchr  Canada
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The last board set has sold and the DG300B is retired. Thank you to everybody who has supported this project through the years, and especially to those who bought circuit boards.

Thanks,

Tom
__________________
Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD. HP-1: 3W/20Ω, -130dB THD, 128dB DNR.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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