Voltage regulation

My personal measurements taken at my house rarely see over voltage . What I have seen however, especially in the summertime are very low voltages, as low as 90 volts. I don't think it's simply the utility company rolling a brown out, because my folks up the street never have the issue. In fact, anytime the compressor for my central AC kicks in, I've seen the street light dim, regardless of summertime demand conditions. I think the transformer on my street isn't rated high enough, or the lines feeding it don't have enough current behind them. During these extreme brownout periods, I turn off as many motors as I can, but I wonder if I'm doing any harm to my audio system.

I use tubed amp and a voltage regulator Exact Power EP15A...it holds the current at a constant 120 volts....good for tube life and also sound. there are others out there that do the same thing.

Xti16,

It could be the Single Impedance Output Transformer in your amp. Have you called the manufacturer or distributor and asked the question as to why this (blowing tubes) could happen?

Thanks Irish - Yes both the distributor and manufacturer both are aware of that problem. They have been very good about tube replacement too. I think I'm on the last step of things to look for and try before sending it in for repair.

Is your solution if within your budget. Always used units for sale at A-gon