On 13 May 2018, at 3:51 pm, Waldemar Brodkorb via cctech <cctech at classiccmp.org> wrote: Hi, I started to revive an old Micro PDP11/83 I have for over 12 years now. It is fully assembled and last time I tried to start the machine it some kind of started. My biggest issue at the moment is the power supply. After the machine is running for a while, let's say 10 minutes and then when I poweroff, the power supply starts producing a lot of dense smoke. The smell is very penetrant. What can I do with the power supply? Do I need to exchange it completely or just parts of it? At the moment I removed it from the case like described here: http://www.bitsavers.org/pdf/dec/pdp11/microPDP11/EK-MIC11-TM-002_MicroPDP1… Thanks in advance for any starting hints, Waldemar

Hi, I started to revive an old Micro PDP11/83 I have for over 12 years now. It is fully assembled and last time I tried to start the machine it some kind of started. My biggest issue at the moment is the power supply. After the machine is running for a while, let's say 10 minutes and then when I poweroff, the power supply starts producing a lot of dense smoke. The smell is very penetrant. What can I do with the power supply? Do I need to exchange it completely or just parts of it? At the moment I removed it from the case like described here: http://www.bitsavers.org/pdf/dec/pdp11/microPDP11/EK-MIC11-TM-002_MicroPDP1… Thanks in advance for any starting hints, Waldemar