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This panel was used on McDonnell Douglas DC-9. It was placed on the Upper left-hand side of the Forward Control Pedestal. If you wish to see it click here. Then click on the picture and it is item 1 in the photo. Lucky the analysis will be very quick, as the schematic is on the units bottom plate. So the Analysis: Panel inner and outer control are both 10 position rotary switches. The Red Control is an 8 position rotary switch coupled to a transformer. The Third Control is marked White, and are ...
Indicator: RMI, Sperry Honeywell C-6E Front image 1 Rear image 2     Specifications: Model Number: C-6E Part Number: 1784460-656 Serial Number: 7081240 Size: 3.175" sq x 10.25"long Weight: 3.9lbs Mounting: Clamp, 3ATI-S ARINC 408, MSP 9963B  (3x MS35214-29 mounting  screws + MS35214-46 adjustment screw) Connector, Plug:   CA102356-35 Connector, Mate: Pinouts: Sperry - Honeywell manual pn: C15-2151-003 ...
This is a visual inspection to see what I'm up against. So without delay lets get into it. Disassembly: First remove the foil around the rear of the bezel. Unthread the large black ring on the back of the connector. There is a large O-ring that will come out after the back has been removed. The RMI internally is divided into six sections.  I have described them from Front Face to the Rear Connector.  This is just to inspect the unit and see what I will have to plan for, as of yet I st ...
Ok, So you think you have a library, what maybe a dozen or so books lying and a few pdfs around? Well at the last big count I was well over 1000, some are still in boxes, and some lost forever. So you really should organize it. I Have a large collection of various book, Fiction (first editions of Robert Ludlam and Isaac Asimov), Cooking Books, Lots of Movies, DIY shows, well you get the idea. So you need to organize it. Your choices are very limited: Dewy (like in your local and maybe your scho ...
Well, here I am with another power supply. This time it is a venerable Lambda brick. Manufacture Lambda Model LM B-15 Serial Number D27233 Voltage Output 15vdc +/- 5% Output Current 80watts. I got this beast a  garage sale and for only 12 bucks now let us hope its really not just a brick. So the first thing I did was attack it with my tools, pulled it apart and gave it a good brushing to get rid of the dirt, webs, and just crud. I have included some pretty snaps, and I know how you lov ...
Well here we are again back at the MPCD this seems like  "The Neverending Story", oh well here goes. I had originally specified the MAX6955 LED display driver IC.  A problem came up and it appeared to only support Charlieplexing,  a technique to use fewer wires to drive your LEDs. Background: Just to keep you all up to date I have included the links to the other blogs in this series: Hacking the Navigation Computer Display, Software Overview: Nav IOP. New Analysis: As I have prev ...
ID-453/ARN-30E Image 1 (front) Image 2 (rear)   This is a Course Deviation Indicator type ID-453/ARN-30E as used in the Vietnam War era UH-1 Bell Huey Helicopter, OV-1 Mohawk, and C-7A Caribou. See diagram from the UH-1 Flight Manual.     TM Number TM Description Comments Copy TM 11-5826-215-12 Operator and Organizational Maintenance Manual Receiving Set, Radio AN/ARN-30D TM 11-5826-215-35 Field and Depot Maintenance Manual Receiving Set, Radio AN/ARN-30D Section VII. Trouble ...