DIY Linear tracking gramophone build and test! 

WOOOOOOO we been waiting for this orange horn gramophone thanks mrrgstuff!!! 😃

Thanks for a very interesting video. Maybe it's just perspective, but it looked as though the needle point was going in a line that would pass in front of the central axle, rather than through it.

Hi, the idea is very interesting, there are a couple of things that I believe you should address (by the way I say this with some competence of 78rpm records, I wrote a book on the subject). The solution you are adopting to force the pipe moving is adding more pressure, but this isn't a good idea, I promise. You are adding tens of time the pressure suggested for a correct reproduction (think more 7g for an electric pickup, just the weight of the pickup for acoustic ones), doing this you will be causing enormous wear to the record, especially the bottom and right hand wall. You are also dampening the pickup, which will work less effectively and with grater distortion and worst sound. This is why in old acoustic gramophones the horn is not one piece with the arm holding the pickup. The pipe is also very long, so you loose the correct proportion; from the point where the pickup is attached to the end of acoustic horn you would want to have a profile which is an exponential curve (or as close as possible): this will heavily affect the sound. I say all this meaning to encourage you to experiment naturally! Have you considered detaching the actual horn from the section holding the pickup? Maybe a short section of pipe sliding inside the other? This would allow you to reduce the pressure of the pickup, and reduce the weight of what the pickup has to push. The problem of wear is very crucial when working with records, and that's the main reason why in the end you avoid using acoustic pickups. But the concept is intriguing. Keep going! :)

Very interesting. Could you drastically shorten the length of pipe if you plumbed in your horn to just past the soundbox and then capped off the end of the remaining pipe, maybe you could make some kind of crane or support that could sit above the turntable?

Beautiful orange bakelite horn! 😁

Very cool!

yo did the soundbox move by itself

I feel like you may have missed the core concept of linear tracking record players...