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 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

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It is currently 18 Sep 2020, 14:39

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 Post subject: Re: Detector Tube Radio
PostPosted: 23 Jul 2020, 13:17 
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Joined: 14 Feb 2010, 13:13
Posts: 708
Location: Lisbon, Portugal
Looks and sounds amazing.

I would like to give it a try.

Good job!


Miguel


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 Post subject: Re: Detector Tube Radio
PostPosted: 25 Jul 2020, 21:37 
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Joined: 23 Feb 2017, 02:02
Posts: 677
HIFI caps in radio scheamtic I like


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 Post subject: Re: Detector Tube Radio
PostPosted: 02 Aug 2020, 06:13 
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Joined: 18 Sep 2018, 01:15
Posts: 19
The scheme for July 16 is not correct, it will not work that way. New fixed
This circuit is close to the correct one, but there are differences, the 2nd IF circuit must be shunted to expand the bandwidth of 1kom
zq 1 is better not to change to a coil, so as not to expand the noise bandwidth of the generator

August 1st found another interesting detail and fixed it, the bass improved
https://yadi.sk/i/q4Ci617-eIIMkg
Accuphase DDS FM Stereo Tuner T-1000 by Roland Kraft
http://www.accuphase.com/review_pdf/Ima ... 06_06e.pdf


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 Post subject: Re: Detector Tube Radio
PostPosted: 05 Aug 2020, 05:53 
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Joined: 18 Sep 2018, 01:15
Posts: 19
I installed the resonator at 13 MHz, the sound, as expected, changed, for the better, but the final touch is the shunting of the resonator by 4.7k

good time of day


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 Post subject: Re: Detector Tube Radio
PostPosted: 23 Aug 2020, 13:22 
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Joined: 18 Sep 2018, 01:15
Posts: 19
New thesis: this detector increases the dynamic range of signals along with multiplying the deviation. The basic form is 4600 kHz and plus the additional 9200 kHz in it, the deviation is multiplied by 4. This is the basis for increasing (restoring) the dynamics of sound.


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 Post subject: Re: Detector Tube Radio
PostPosted: 23 Aug 2020, 13:27 
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Joined: 18 Sep 2018, 01:15
Posts: 19
https://yadi.sk/d/287-4XHjxEtkIw
https://yadi.sk/d/a7yl2HAx2Mfk2A
https://yadi.sk/d/cREfxDenyuT2YQ
https://yadi.sk/d/fQH9rEIDhJq8jQ
https://yadi.sk/d/ZJy7hwE8rYWx3A


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 Post subject: Re: Detector Tube Radio
PostPosted: 23 Aug 2020, 13:31 
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Joined: 18 Sep 2018, 01:15
Posts: 19
channel separation
https://yadi.sk/d/dXuRISh4VpwKXg


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