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DIY Single tube radio with mouse shape(Multifunction)
http://www.diyaudioprojects.com/Forum/viewtopic.php?f=16&t=6476
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Author:  hujingdi [ 05 Mar 2019, 03:29 ]
Post subject:  DIY Single tube radio with mouse shape(Multifunction)

Attachment:
1.JPG
More than 40 years ago, I used to do a single tube. I will use this drawing today and do it again.
1 .Variable capacitor (differential double connection, only one of them)
2.3AG1
3.50 mm Medium wave bar
4.Output transformer
5. 2AP9
6.High frequency transformer(3mH) DIY
7.R 68K
8.C 5100P , 470P
Transform the mouse into a single tube machine(first part)

Unfinished(Look at the picture .see you tomorrow)

Author:  hujingdi [ 05 Mar 2019, 03:33 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Production process and drawings

Author:  hujingdi [ 05 Mar 2019, 16:09 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Do a little every day:
Power switch and shelf

Author:  hujingdi [ 06 Mar 2019, 21:54 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Making a high circle:
1.200 turns on a 0.1 mm copper wire ferrite
2.Parts up to PCB

Author:  ILoveHiFi [ 07 Mar 2019, 00:30 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Seems like a cool project

Author:  hujingdi [ 07 Mar 2019, 17:38 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Remove PC expired motherboard CMOS battery holder

Author:  hujingdi [ 07 Mar 2019, 17:43 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Production of regenerative capacitor
1 segment of copper wire with a diameter of 1 mm
2 Around the 0.1 mm enameled wire
3 Capacitance meter measurement up to 25 P(Used in adjustment)

Author:  hujingdi [ 08 Mar 2019, 17:25 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Battery rack installation

Can work normally

Author:  hujingdi [ 09 Mar 2019, 01:15 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Further adjust the size of the regenerative capacitor, just no "scream"

Auckland, New Zealand, can clearly receive 15 stations from AM China Wave
Very good sound!

Author:  ILoveHiFi [ 09 Mar 2019, 20:57 ]
Post subject:  Re: DIY Single tube radio with mouse shape(Multifunction)

Is that the thing done? I thought there was supposed to be some valves or something as described in op

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