DIY soundbox #4 - for HMV Gramophone
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- Опубліковано 5 вер 2024
- My fourth design for a gramophone / victrola sound box and again for fitting to my HMV 162 gramophone - although the design would work with other gramophones including my home made ones.
Includes a like for like sound test against my previous sound box.
You are amazing ! You did a great job ! My compliments !
Thanks 😀 👍. I am very pleased with this build, but I think I have done better since. Have you seen: ua-cam.com/video/mK1bGhanqf4/v-deo.html
Wow! It sound surprisingly good!
Thanks 😀 👍. Yes, I was pleased how it came out. I have since made some more using 3D printed parts and some of these are even better 😀
Very good sound quality 👍
Thanks 😀 👍. Yes I am pleased by how well it sounds. I have made better ones using 3D printed parts also.
I think it would be louder if there wasn't such a large space between the diaphragm and the inside of the reproducer.
Yes, I think you are right. I was able to build a couple which were better in this respect:
ua-cam.com/video/pw9DoCmvl9s/v-deo.html
ua-cam.com/video/A7qNRg3BS5o/v-deo.html
Thanks 😀 👍
Well done:) Very nicely played:) Thanks
Thanks 😀 👍. I did make some improvements to it here: ua-cam.com/video/kZ9Wskmrs74/v-deo.html
Sounds like a deeper tone, fuller body 🙂
Thanks :-) Yes the tone is much better than the previous one. There are lots of improvements I can still make to it - which may well make it sound even better. It does need some more volume though.
I don't know if you can get Yoplait Light yogurt in the 8 packs, but the container is Polystyrene and very thin. (53 mm by 64 mm) oval. They are just right for making crystal headphones if you glue a piezo disk to the back and I'm sure they would make a good soundbox.
Thanks 😀 👍. Sounds like ideal diaphragm material. I will have to look out for them. I don't know if you saw that I have tried a few different other materials for this:
ua-cam.com/video/XqAlJVpN3ZM/v-deo.html
ua-cam.com/video/aMrX8tn-tYI/v-deo.html
good boddging there . interesting that you chose an american folk song" little brown jug i love thee "
Thanks :-) The record more picked me as it is broken and Google doesn't seem to recognise it (yet).
sounds pretty good!
Thanks.:-) Yes, it's surprisingly better than the previous design, but also the closest to a 'proper' soundbox design so maybe that is to be expected. The main problem now is the volume. The camcorder compensates I'm sure as it sounds louder on video than in real life.
It sounds better.
Thanks 😀
Very interesting!
Thanks 😀👍. I have done quite a few different ones now:
ua-cam.com/video/hfO-Ulr87wE/v-deo.html
thank you so much sir ....what was the needle made of used in this diy
It was a genuine gramophone needle. It is possible to use other things, like sewing needles, but these may damage the record
Thank u so much sir
Hey’ that sounds amazing :)
A few questions and one suggestion
What type of of needle are you using in this video?
I have a a few sets of sewing machine’s needles in a different diameters. Thinking of using one them. What would you recommend?
Dose vinyl record’s life get shorter under a diy sewing needle?
A Suggestion
Maybe you should try using a plastic bottle as the membrane for the sound box - by tucking a sheet of plastic with staples on some sort of a small wooden ring, than shrink the plastic with heat gun or over your kitchen stove (look for the PETE recycle mark on the bottle-the type that shrink at heat).
I made a Banjo head out of shrunken bottle plastic. the strings and bridge are seating on that stretched thin plastic and it produce a great loud resonance!
Thanks from advance
Eddo :)
Thanks 😀 👍 and thanks for the suggestion to heat shrink a plastic diaphragm. I may try that. I have also tried 3D printing soundboxes like this one:
ua-cam.com/video/pw9DoCmvl9s/v-deo.html
I've tried several types of plastic diaphragms as well as metal ones:
ua-cam.com/video/XqAlJVpN3ZM/v-deo.html
In these videos I am using a proper gramophone needle and the records are shellac 78s. The needle is changed for each record. I have built soundboxes which can be used on vinyl using a normal sewing pin, though it does damage the vinyl are should not be used on records you care about:
ua-cam.com/video/LA6PV7jz5z4/v-deo.html
There are lots of other videos on my channel which you might find of interest. This playlist covers some of them:
Acoustic Gramophone Experiments: ua-cam.com/play/PLsCYUbO6xxnSO9jsY2uYJSZzz40HMTOAP.html
very good
Thanks. It was fun to make and sounded better than expected.
Ah what happened to the good ol "video response"
Im nearing finishing a similar project, Im adding an adjustable counter weight on my tone arm, My sound reproducer (box) is too heavy and would annihilate a record groove, I made it from copper and steel.
Would you like to see it when it's done?
Yes, it would be great to see it when it's done. Thanks. Oddly enough, I think my sound boxes are probably too light as they still lack volume. My next plans in this area include making them heavier to see if it helps.
@@mrrgstuff , Hey i just fished with my counter weight and it seem like it's going to do it's job well, I can screw and unscrew it to get how ever much balance/pressure placed on the needle, You should try this, i used a temporary one wired on to test.
Thanks, yes a counter weight makes good sense. Apparently there were commercial ones for use with fibre needles and if I can find enough info I may make one like that. I have used counterweights in projects using a sound box to play vinyl records as even though they are light, the sound boxes are still too heavy for them.
I am working on making some of a similar design
Interesting to hear that. I had a lot of fun making this one and it works quite well though it could be improved. Certainly needs to be louder. I haven't decided exactly what I will try next, but I do hope to come back to this. Good luck 😀
It seems you have greatly reduced the distortion on high pitches. Do you know what is causing it?
To be honest I don't know, but this sound box has a proper diaphragm which I'm sure helps. Have you seen my next video? Thanks
ua-cam.com/video/kZ9Wskmrs74/v-deo.html
The vibration of the materials cause the distortion in higher or low bass notes, so if the gaskets are falling or the centre of the diaphragm is worn or cracked/ creased. Can cause lot of unpleasant sounds. But remember things wasn’t perfect in them days. Plastic diaphragms seem to perform better than tin ones I think.
I've had quite a lot of success using the clear plastic from a CD case as it is very ridged, though a little thick. I've tried other sorts of plastic and metal too. Aluminium works well when corrugated like in this video:
ua-cam.com/video/mK1bGhanqf4/v-deo.html
Thanks 😀 👍
Have you tried a louder needle? Thicker needle
No, though I do have some and it might help. I have been trying though to do comparisons between the sound boxes so I have kept the needle the same type for all tests. Thanks 😀
You need to get yourself a Myford lathe so you can do this properly !
Well I didn't by a Myford, but I have a mini lathe and have started to make screws and small stuff for soundboxes. I have also made a lot of use of 3D printed parts for my more recent designs:
ua-cam.com/video/A7qNRg3BS5o/v-deo.html
I have plans for one which is much more made of metal too, and may well get to the point where I can make a whole one on the lathe! 🤔😉. Thanks 👍😀