A stupid question for changing rotation speed

[he16767]

Hello!
Sorry for my english first.

I am a new player for gramophone.
I brought my first gramophone,
but it is ship on the way.

The gramophone is 78rpm,
but I want to play some 33 rpm records,
there is something that can
change the speed from "Slow"to"Fast" on it.
Can this "Slow" change the speed
from 78 rpm to 33 ⅓ rpm?

I saw a video on youtube,
the gramophone is playing
a 33 rpm record.

[youtube]http://www.youtube.com/watch?v=KYDehriskSw[/youtube]

How he do that?

Help!

Regards
Martin!

[EdiBrunsVic]

It appears that a "crapophone" is in use. On authentic external horn machines, only the 78 rpm records can be played. Yes, there is a speed regulator for those records which need to play at 80 rpm or some other speed close to 78, and perhaps if a person is playing along on another instrument, such as a piano or violin. I am sure others on the forum will add to this observation and provide more detail.

[OrthoFan]

Not a stupid question at all.

As EdiBrunsVic explained, the speed adjustment knob or lever on most acoustic gramophones is used to speed or slow down the turntable, because not all records produced during the early days of recording were recorded exactly at 78 RMP.

The gramophone you purchased was made for playing the shellac based 78s produced at the time it was manufactured -- in the late teens or early 1920s. LPs or 33 ⅓ rpm records were not introduced until 1948, and were designed ONLY to be played on electrically amplified record players, using light weight tonearms and jewel tipped needles or styli designed to fit their very thin groove (about ⅓ of the size of a 78 rpm record's groove). Keep in mind, LPs are made out of a vinyl based material that cannot withstand the weight of the tonearm or sound box used on an acoustic gramophone. (In contrast, most 78s were pressed out of a much harder shellac based resin.)

The only thing the guy in the youtube video is doing is ruining his record. It also sounds horrible. Compare that to this video showing a restored gramophone similar to the one you purchased, playing a 78 from circa 1929:


[youtube]http://www.youtube.com/watch?v=-793nF633pU[/youtube]