Cherian
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My 2 cents:
Most solid-state power systems today utilize what is known as switch mode power supplies. These power supplies are not bothered by voltage swings. These power supplies can go as low as 85 VAC and as high as 267 VAC without any issues. As long as the switch mode power supply (SMPS) can get the current it needs it will deliver power regardless of voltage. This is the pro to SMPS. The con is as follows. The SMPS switches at a very high speeds this switching dose not allow for much filtering on the output of the SMPS so any high frequency noise or surge will travel through the SMPS and into the system. Using a good power filter before the SMPS is a wonderful idea. I would recommend a VERY LOW IMPEDANCE isolation transformer based power conditioner that offers a good L-C (inductance / capacitive filter on the secondary of the transformer). Low impedance is critical because the power conditioner must be able to deliver peak current to the load when it needs it.
Now Tube amps and such use a linear power supply here voltage regulation is critical I would say anything below 10% of nominal is bad news. For this I would say get a good On-line UPS (Uninterruptible power supply) and size it bigger that what you need. A 1440 or 2 kVA unit would be ideal. Please note these are not cheap but you will get dead on voltage regulation.
Most solid-state power systems today utilize what is known as switch mode power supplies. These power supplies are not bothered by voltage swings. These power supplies can go as low as 85 VAC and as high as 267 VAC without any issues. As long as the switch mode power supply (SMPS) can get the current it needs it will deliver power regardless of voltage. This is the pro to SMPS. The con is as follows. The SMPS switches at a very high speeds this switching dose not allow for much filtering on the output of the SMPS so any high frequency noise or surge will travel through the SMPS and into the system. Using a good power filter before the SMPS is a wonderful idea. I would recommend a VERY LOW IMPEDANCE isolation transformer based power conditioner that offers a good L-C (inductance / capacitive filter on the secondary of the transformer). Low impedance is critical because the power conditioner must be able to deliver peak current to the load when it needs it.
Now Tube amps and such use a linear power supply here voltage regulation is critical I would say anything below 10% of nominal is bad news. For this I would say get a good On-line UPS (Uninterruptible power supply) and size it bigger that what you need. A 1440 or 2 kVA unit would be ideal. Please note these are not cheap but you will get dead on voltage regulation.