ASR 33 - question about powering reader

[this is a crosspost/copy of message to greenkeys list] Hi I have been able to get my PDP 11/05 to print "hello world" by entering a short program into the toggle switches. I can simultaneously get the punch to print if I enable it. The text is actually garbled (TE]HJVYRTD), but I assume I just have to make an adjustment to the parity/stop bits or related. At least it's consistent. But the reason I am writing is to see if I can help with the reader. When I load and run the bootstrap loader the reader does not attempt to read a bootstrap tape either automatically or by pressing start. I think that's because the reader is not getting power. I can't get it to do anything in local mode or line mode. I have painstakingly traced the wires to get a good idea of the modifications made to the reader control. It appears that two of the wires coming from the reader are diverted to run through a 24V transformer (?) with a 0.5 uF 47 on top that is part of the reader control mod, and then exit the teletype . <http://vintagecomputer.net/teletype/asr33/PandB/with_PandB_JR-1000_pic2.jpg>http://vintagecomputer.net/teletype/asr33/PandB/with_PandB_JR-1000_pic2.jpg On the other end the wires have round screw post connectors as if they could connect to a ground post or power supply. Pics below. <http://vintagecomputer.net/teletype/asr33/PandB/with_PandB_JR-1000_red-black-leads.jpg>http://vintagecomputer.net/teletype/asr33/PandB/with_PandB_JR-1000_red-black-leads.jpg Any ideas where these would be plugged in given the photos below? I don't think the two wires are supposed to be plugged into pins 4 and 6 of the mate-and-lock connector coming from the pdp 11. I am pretty sure 4 and 6 are for a high-speed reader and have nothing to do with the TTY circuits. http://vintagecomputer.net/teletype/asr33/PandB/PandB_JR-1000.jpg http://vintagecomputer.net/teletype/asr33/PandB/with_PandB_JR-1000_resistor… I am working to figure this out on my own, but I don't have much experience in this area! <http://vintagecomputer.net/teletype/asr33/PandB/PandB_terminalstrip4.jpg>http://vintagecomputer.net/teletype/asr33/PandB/PandB_terminalstrip4.jpg FYI - The lines for the receive/send I must be close. I read that there was a power supply for the reader on some asr 33's, Do I need a 24V power source for the reader? Thanks in advance for any ideas/tips. Bill