Yes. The first PSU2 were delivered fall 2004 (only as an option, not all
A-100 frames delivered since fall 2004). From 2006 all frames include the
PSU2 (except some A-100G3 that still include the old version of the power
supply). Each frame that is equipped with PSU2 has corresponding labels at
the rear panel near the mains inlet: "Power Supply 2" + mains voltage + fuse
value. Frames with the old version of the power supply (650mA) have only a
label that indicates the mains voltage. So it is very easy to find out if
the frame contains the old version of the power supply or PSU2. Consequently
a frame with a label that indicates only the mains voltage (no "Power Supply
2", no fuse value) contains probably the old version of the power supply. To
be 100% sure one has to look at the PSU. If there is a black flat pack
transformer it is the old power supply. If there is a ring core transformer
(toroid) it is PSU2.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von Tommy DOG
> Gesendet: Dienstag, 7. Februar 2006 17:15
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 PSU vs. PSU II
>
>
> Is the older power supply always regular PSU
>
> TD