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Originally Posted by infinitesymphony /img/forum/go_quote.gif
Pretty cool. There's a used Victrola (later model from a different manufacturer) at a local antique store, and I was just imagining how it might sound. It had a reservoir that was filled with steel needles. I guess the one-needle-per-side rule explains that. A vinyl rig was probably just as expensive to maintain then as it is now.
It's hard to tell from the sound... Is this one of those orchestral recordings that was recorded dry so that it sounded realistic when played back in a reverberant room?
There's been a vinyl resurgence lately, so there has been a lot of discussion about turntables in the Dedicated Source Components sub-forum.
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They were recorded the same way they were (are) played back, with a horn coupled to a diaphragm which moved the cutting needle. My shot of the diaphragm didn't turn out, I'll take a few flash pics later.
I may even carry a couple of lights down there and shoot the whole thing over with a lot better illumination, I had to adjust that one quite a bit in VirtualDub to get it to look as good as it did.
So I guess the answer to your question is that however they came out was how they came out. No retakes unless you did a whole new master.
The record is actually shellac and since the stylus pressure is about three ounces the record would only last a single playing except for one thing. When they made the records they put an abrasive in them that is harder than the steel needle, so the needle wears out rather than the record.
There were different lengths and thicknesses of styli available, both volume and tone could be controlled with different styli. Thicker and shorter styli were louder and sharper sounding while the longer and thinner styli were softer and less sharp sounding.
You could even get bamboo styli and someone on the headphones forum told me they used to use the long barbs off a certain tree when they ran out of styli..
The thumping noises during the playback were the spring unwinding inside, that spring is powerful and could probably do you some damage if it were to uncoil all of a sudden in your face.