I'd wager that there is little to no chance of these being regulated. Due to the age of these adapters, you're likely to see a pretty wide voltage range even among the same model supplies.
It doesn't really matter a whole lot though, since like most older electronics the PCE uses the rock solid LM7805 linear regulator internally. As long as you're feeding it a good 6~7v+, you'll be fine. Any more than that is just extra heat.
I personally use a standard 9v 1.5A switching regulator with my PCE and SFC.
It doesn't really matter a whole lot though, since like most older electronics the PCE uses the rock solid LM7805 linear regulator internally. As long as you're feeding it a good 6~7v+, you'll be fine. Any more than that is just extra heat.
I personally use a standard 9v 1.5A switching regulator with my PCE and SFC.