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Old 20th June 2006, 07:19 AM   #1
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Default FM Stereo Tuner Tube Schematic ?

Does anyone knows where to find schematic good, simple Tube FM Stereo Tuner ?

I'm looking for the simple one, but in stereo.

cal
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Old 20th June 2006, 10:44 AM   #2
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Well, maybe not exactly simple (as usual, this depends on personal skills), but certainly a good one, have a look at (German language):

UKW Projekt @ Jogis Röhrenbude

Follow those links at the TOP to find additional info on current modules. The pics below the link block show old versions.

Tom
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Old 20th June 2006, 03:20 PM   #3
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here's a link to various tube schematics -- http://www.triodeel.com/schindex.htm
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Old 21st June 2006, 02:27 AM   #4
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thanks guys, but my god that's so difficult to build and to find the component.

looks like there is no such easy/diy/simple FM tuner for beginner.

hmm....

cal
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Old 21st June 2006, 02:46 AM   #5
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Quote:
Originally posted by calico88
thanks guys, but my god that's so difficult to build and to find the component.

looks like there is no such easy/diy/simple FM tuner for beginner.

hmm....

cal


MPX stereo is complex. VHF superhet circuitry is sophisticated too.

If you set your sights lower and settle for mono, things become MUCH more manageable. Peruse the following 4 pages.
http://www.somerset.net/arm/reprints/fm_tuner_1.jpg
http://www.somerset.net/arm/reprints/fm_tuner_2.jpg
http://www.somerset.net/arm/reprints/fm_tuner_3.jpg
http://www.somerset.net/arm/reprints/fm_tuner_4.jpg

Given that regulatory agencies get upset by spurious radiation. You'll have to isolate the antenna from the Colpitts circuitry by an untuned grounded grid stage. Ideal tubes for the GG are the 5842 and the Russian 6s45p.
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Old 21st June 2006, 02:49 AM   #6
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too expensive -- consider purchasing a dynaco fm-3 with the manual -- this will be much more reasonable.
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