Quote:
Originally Posted by Herald1360
If the blades (normally referred to as vanes) are typical, they'll be aluminium which is notoriously difficult to solder. You might get better results gluing the blade back to the axle with metal loaded epoxy or painting the axle/blade interface with some silver loaded paint as used for heated rear window element repairs.
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Good suggestion re epoxy. Any particular product you've had success with?
The vanes aren't aluminium (unusually): I'm guessing brass, but I may be wrong. They did take the solder quite easily (cleaned and fluxed). The axle is a different matter, so I think your epoxy idea is a runner.
Also, I see from the circuit diagram that the cap in both the RF and LO sections is teamed with a variable inductor. Is it possible to re-tune the tank using this inductor?