A comment on one of my recent videos called my attention to the probability that having a bluetooth module permanently switched on inside a tube radio was probably not a great idea. As it's only required when we select the pickup input, there is not good reason for letting it pollute the airwaves while we're listening to radio, right?
Along comes the idea (from Rodney) to drive a relay from the magic eye's high voltage supply, which would provide power to the BT module only when said eye was off, i.e. when NO radio was being listened to, i.e. when the pickup selector was activated, i.e. when we wanted to listen to the bluetooth audio.
You get the idea.
Enjoy and stay safe.
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#tuberadios #antiqueradio #radiorestoration
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DIY TEST GEAR: The title says it all:
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RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
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HowTo's: Various videos on some simple techniques and projects:
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See also playlists on some other completed restoration projects.
PHILIPS BX750A:
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TELEFUNKEN OPUS 2114:
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SABA UW-175-Z 3D:
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GRUNDIG 1070:
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SCHAUB-LORENZ GOLDY 58 type 3020:
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BUSH VHF64:
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GRUNDIG 3060A:
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TELEFUNKEN OPERETTE 8:
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GRAETZ SUPER 171W:
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LOEWE-OPTA MAGNET 3737W:
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BRAUN ATELIER 3:
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LOEWE-OPTA TRUXA STEREO 4741W:
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GRAETZ COMEDIA 616:
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SABA FREIBURG W2:
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GRAETZ MUSICA 4R417:
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CAPACITOR LEAKAGE TESTER:
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