[David Dunlop]

I am continuing to work through the Operational Check List a few times a week with the 52-Set, up to the point where I need to tune the set to 10 Mc, insert the Morse Key No. 9, and go into a full blown, key down transmit mode. Up to this point, the set is producing all the positive results it is supposed to on the Check List. The two dynamotors speed up and slow down where they are required to and the relays activate to isolate the Receiver on queue, taking it off line as they are intended.

I have noticed that he MG2A Dynamotor is not as grindy on start up as it initially was a few weeks ago. This could be the grease in the front bearings is finally getting back to lubricating things a bit better, but more likely, the Brushes are starting to seat better with the commutater.

All voltages settle into the generally acceptable ranges provided for them, once the overall set has warmed up for about 10 minutes or so and I am even getting test readings on the Meter for the Sender Valves, indicating they are operating within stated specifications. Still a bit nerve wracking, however. At the end of the month, I still plan to pull the Sender, remove all the valves and redo the resistance tests for it that were suspect initially, to see if any have improved at all. Then I will start digging deeper as required.

In the meantime, I still want to try and get some spray painting done on the outside of the Tool Box, while the weather still holds outside. I have started stripping the old paint off the metal fittings on the right side of the lid, cleaning the accumulated dirt and paint out of the various slot-head screws and cleaning away the numerous runs and ridges of NATO Green paint. Once that is all done, I can start sanding and filling the various screw holes where the original Glazing Putty has fallen out or shrunk.


David