Automatic watch with perpetual calendar but what are the numbers on the bottom and how do they relate to the months?6yr ⋅ D1090 ⋅ r/Whatisthis
I found these in my back garden.I'm not sure about the one on the far right though.6yr ⋅ D1090 ⋅ r/fossils
Simple AM transmitter using a crystal oscillator- I have a really heavy microwave transformer for this circuit; is it safe and will it improve the range of the transmitter in a house, for example?5yr ⋅ D1090 ⋅ r/VintageRadios
What are these two cylindrical components with holes in them? They both say PHW 4562 on the other side. Should or must I replace them? Working on a Stella st102a.5yr ⋅ D1090 ⋅ r/VintageRadios
