Today I noticed that the two Servo Amplifier Boards are missing. Not to panic! I confirmed that the previous owner didn't have them. I should mention that this AMP sat in his basement until he decided he wasn't going to set it up, and he gave it to me. Like a real piano, the moving part was my responsibility. Now for some history. I called my Dad yesterday to tell him that I picked up the amplifier. My Dad worked at Canadian Marconi for his entire career, in Nova Scotia. As we were talking, I asked him about Darrell Garland and "Lee". He laughed because Darrell was one of his first bosses and Lee was another senior tech in the Dartmouth office. Their names were printed on the front of the BH-30 Service Manual that came with this unit. Another neat thing is that the manual includes a two page diagram for a CH-150 connection to the Amplifier. This diagram is written very neatly on the back side of Canadian Marconi drafting paper, with an old "30 Simmond's Drive, Dartmouth NS" address. The 2nd page to that diagram is a connection to a MAC1000 Antenna Tuner. If someone knows what a MAC1000 is, please let me know. So why not panic about the missing boards? The missing boards seem fairly straight forward to etch and re-produce. The only issue I have is to confirm the pin placements for the component side of the board. I have noticed that this amplifier labels and counts by skipping the letter "I" and possibly "G" and "O". Thus the potentiometer wiper outputs labelled "B" through to "P", and skipping "G" and "I" would seem to be on trace numbers 2 through to 13. The card edge is labelled 1 to 22 on one side and A to Z on the other side. A,Z,1, and 22 are grounded. So the next trace on the edge is "B" and "2' on the flip side. So I just need to confirm that the labelling skips G, I, and O and then I can etch a board. Another peculiarity is that the programming board is already setup for HAM use, with "160 - but really 150m", "80m", "40m", "20m", "17m", and "15m" already setup. But the CMC CH-25 radio that came with the amplifier is a single channel (4755.0 kHz) unit. I'm trying to figure out if the AMP never came with the servo boards since it seems that it was potentially only used in a static setup (one channel), but the programming board is setup for ham and the channel "1" position is set to 2.0 to 2.25 MHz (what I called 150m) instead of the 4.5 to 6.5 MHz (where the 4755.0 kHz lies). If someone out there has the servo board, could you please take a photo of each side for me? I would like to confirm the outputs of each wiper to the edge of the board. In the meantime, I will trace it out by eye and compare back to the schematic and set up myself to create the two missing boards.