Made up these mock battery boxes for test fitting for my British portable tube (valve) radio (a Pye P131MBQ). They seem to fit correctly. Currently working on stuffing them with the correct number of cells to match the 7.5V and 90V sizes and having a suitable connector.
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I have finished up restoring this old 1936 Oscilloscope. Originally this "Oscillograph" used a 1-inch diameter CRT, but was upgraded to a 2-inch tube at sometime in its life.
I am quite happy on how this turned out. I was surprised how a bit of Scotchbrite cleaned up the front. Got this bad boy running after sitting in my garage since last fall. Now all I need to do is try and paint the case in such a way as to preserve the front panel writing. It is raised so I should be able to do it.
I have finished cleaning up and re-painting the Model 26. It is now reassembled and ready for testing.
Got this old "portable" radio from the 1950's working again. It's a British model that runs off of 240V or two batteries (a 7.5V, and 90V). Unfortunately, when I turned it off and back on again, I was unable to get it to work again. It went back to motorboating. I replaced every capacitor in the beast, so I am at a loss here. At first I replaced all the wax and electrolytic capacitors. Then, I replaced remaining ceramic (dogbone) capacitors and wax covered flat capacitors with mica precision caps. Still no closer. It is a weird one. Finished restoring the Teleprinter Simplex Printer Wiring Module cabinet I picked up a few weeks ago. I didn't really plan on working on this till winter, but my curiosity got the better of me. I had no idea what this was and wanted to find out. Also wanted to clean it up as it was in sad shape.
Picked two rather large white five pound banknotes (white fivers). The earlier one (1935) was one that the Nazis would have forged during Operation Bernhard, however, I checked this one out, and it is not one of those. The second one is from 1950.
Despite these being white, they are pretty cool to look at. It is hard to believe, but Bank of England notes look much like this for years. |
AuthorCharles Baetsen holds a Bachelor and a Master's degree in Engineering Physics from McMaster University in Hamilton, Canada. Archives
February 2024
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