You have probably all been wondering where I've been.
The answer is, finishing the design of the Devinyliser and preparing a detailed account of it, for second, third, and fourth-order versions. It gives build details for a practical second-order version. This gives a rejection of out-of-phase signals by more than 45 dB below 10 Hz, and uses only 3 opamp sections per channel. The article is intended for publication in Volume 11 of Jan Didden's Linear Audio in April. See: volumes | Linear Audio
I am also preparing a PCB layout. This will be a small standalone board that can be used at line level in any installation, requiring only +/-17V power. If there is enough interest, I will produce high-quality PCBs for home assembly.
It would be very helpful if you could indicate your interest here.
The answer is, finishing the design of the Devinyliser and preparing a detailed account of it, for second, third, and fourth-order versions. It gives build details for a practical second-order version. This gives a rejection of out-of-phase signals by more than 45 dB below 10 Hz, and uses only 3 opamp sections per channel. The article is intended for publication in Volume 11 of Jan Didden's Linear Audio in April. See: volumes | Linear Audio
I am also preparing a PCB layout. This will be a small standalone board that can be used at line level in any installation, requiring only +/-17V power. If there is enough interest, I will produce high-quality PCBs for home assembly.
It would be very helpful if you could indicate your interest here.
I'm very interested. I am always eager to play with the toys that you invent!
Me too!
However, as I can now concentrate on the preamp.. bathroom renovation being completed, perhaps now is the time to ask whether the Devinyliser should go ahead or after the tone-control preamp?
However, as I can now concentrate on the preamp.. bathroom renovation being completed, perhaps now is the time to ask whether the Devinyliser should go ahead or after the tone-control preamp?
Oh!
I can see the opportunity for misunderstanding here. I meant whether the Devinyliser would feed into the preamp or vice versa, not which one to start work on. 🙂
I suspect that the devinylizer does not have a volume control. If that is the case, the output of the devinylizer would plug into an input channel of your preamp. However I should set back and let Mr Self answer. At best, I can only speculate on his design.
Which input?
Hi Carl,
I suppose it could be connected to a dedicated input, but it seems to me that it should be after our Selector mechanism in the preamp... enabled / disabled by a toggle, so that any input might benefit from its use. I might wait to see how this goes before finalising my rear panel connections and front panel. Hey ho!
Hi Carl,
I suppose it could be connected to a dedicated input, but it seems to me that it should be after our Selector mechanism in the preamp... enabled / disabled by a toggle, so that any input might benefit from its use. I might wait to see how this goes before finalising my rear panel connections and front panel. Hey ho!
I am interested. I also look forward to your article in the next edition of Linear Audio.
Thanks gents, your interest is noted. Any more?
We really need a few more indications of interest to make this viable.
Tell all your friends.
The Devinyliser is intended to be used with vinyl sources only, so it would be in series with the relevant input to the preamp. The Elektor 2012 MC/MM system would be a good match, with or without its existing subsonic filter linked out.
We really need a few more indications of interest to make this viable.
Tell all your friends.
The Devinyliser is intended to be used with vinyl sources only, so it would be in series with the relevant input to the preamp. The Elektor 2012 MC/MM system would be a good match, with or without its existing subsonic filter linked out.
Does it seem viable that the market wants another phonograph high pass filter?
As a non vinyl user I still find this an interesting topic.
Would a couple of short audio clips with/without be an idea ? It could boost interest.
Would a couple of short audio clips with/without be an idea ? It could boost interest.
Does the circuit actually do anything audible? I don't think we established that similar digital filters did much. Did we?
Or is this for testing purposes?
Or is this for testing purposes?
Well, bearing in mind that it's a unique bit of technology that does something that as far as I know has never been done before, (ie cancelling antiphase VLF with a slope of more than 6dB/octave) then I do just dare to hope that it might be useful.
At the moment I can say that it does what it is supposed to electronically. I hoped to do some practical tests over the weekend but the guy with the turntable failed to come through.
The whole point of the OP is whether Devinylising has a subjective effect. Either way, it should certainly stop those bass cones flapping about without subjective reduction of bass.
- Status
- Not open for further replies.