Power Deluxe 25A

[Gerowen]

I've had this amp now for a couple months. It's a base station power supply/linear, and plugs straight into a 120VAC wall outlet. I got it used, and use it every day with no problems, no excessive heat, no distortion or anything of that nature, everybody tells me I sound great, by all accounts it seems to be working just fine, but I have two things that I'm curious about.

1) I have the radio running off a separate power supply to reduce the amount of draw on it. The linear has a built-in power supply, but I don't use it just because I want to distribute the draw a little bit. When I key up though and the linear is on, the voltage output on both power supplies, including the one running my radio will drop dramatically, sometimes as low as 5 volts. This is curious to me because I have tried running an extension cord and running the radio power supply on a separate breaker just to see if maybe I was overloading the breaker, and the drop still happened on both power supplies, even though they were running off separate breakers. The other reason it's curious is because my radio does not act like it's being severely under-powered when this happens. The meter bulb does not dim like it has in the past when using faulty power supplies that under-powered it, and the radio always gets good audio reports from others. I've had one or two faulty power supplies in here working on them and the first indicator of insufficient voltage has always been a dim meter bulb, and when I key up mine doesn't behave or get any dimmer. My voltmeter though detects a serious drop in voltage, and I'm curious about it.

2) If I have the linear turned off, but the pre-amp turned on, the linear indicator will come on very dimly, and I can hear the relays click in and out when I key up, albeit kind of weak sounding. Running the pre-amp and linear functions together offers no unusual performance, but I'm wondering why I hear the relays for the linear part kick on when they're turned off if I have the pre-amp turned on.