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Syncrodyne tuner Part 4 some R&D with coils and valves.
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Return to top of page · Post #: 1 · Written at 2:11:44 PM on 21 October 2018.
	Fred Lever Location: Toongabbie, NSW Member since 19 November 2015 Member #: 1828 Postcount: 1250
Well here is my final attempt to make a ring coil demodulator work and I pretty much succeeded in working out the basic rules for success. Really its a tale of things that did not work, but that's only because of my ignorance of RF coils and how valves work. I always liked R&D, they paid you for mucking about in a lab or workshop and make cool things! Only now nobody pays me! That's pretty much it for the Syncrodyne with a coil demodulator and also with a Mixer valve. As it turns out if one was to have a go at making a Syncrodyne it would be better to go for the Mixer valve option to avoid the coil problems. I'll send a PDF of the part 4 to Brad to tag to this post. My next project is to make a Superhet but with a 1.8MHz IF strip, just to see how it works and have a go at winding a full coil set. What could possibly go wrong? Fred. The Synchrodyne AM Tuner - R&D

Return to top of page · Post #: 2 · Written at 10:28:30 PM on 21 October 2018.
	Brad Administrator Location: Naremburn, NSW Member since 15 November 2005 Member #: 1 Postcount: 7302
Document uploaded. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ A valve a day keeps the transistor away...

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