a 45 RPM and a 78 RPM vinyl record. These are the older, usually black, records.
2007-02-06 05:41:26 · 9 answers · asked by twism 3 in Education & Reference ➔ Trivia
two... one on each side
2007-02-06 05:46:22 · answer #1 · answered by TK M 2 · 9⤊ 0⤋
1
2007-02-06 08:32:18 · answer #2 · answered by Spider John 2 · 1⤊ 2⤋
That depends on the length of the music programs recorded, and the 78 rpm record where made of a type of lacquer (quite fragile), NOT vinyl. Vinyl came in with 33 rpm 'hifi' records.
2007-02-06 06:42:33 · answer #3 · answered by Anonymous · 0⤊ 3⤋
The grooves are 4 times smaller on the 33s, and a total of 60 minutes of music are on them, The size of the stylus effectively
determined the size of the grooves in a record and the
recordable frequency range limited by this groove size
determined a speed between 70 and 90 rpm.
2007-02-06 06:19:20 · answer #4 · answered by softball Queen 4 · 0⤊ 6⤋
there is only one groove on all of them .... it goes around the record in an ever decreasing spiral to the end.
now as for counting the peaks opposed to the groove in a straight line along the diameter of the record....... well your gonna have to offer many many more points for that jewel of info.
2007-02-06 05:51:58 · answer #5 · answered by dharp66 3 · 2⤊ 3⤋
find out the total minutes of music on each side, then multiply by 33.
edit
dharp is correct, to some degree. the tall grooves stop between songs and a new groove begins with each one. so, if 5 songs on a side, then 5 grooves. to count the peaks and valleys, multiply by the formula above.
2007-02-06 05:46:45 · answer #6 · answered by Anonymous · 2⤊ 5⤋
That would completely dependant on the length of the recording.
2007-02-06 05:50:22 · answer #7 · answered by Yankees Fan 5 · 2⤊ 4⤋
Counting both sides? 2 (one on each side)
2007-02-06 07:32:02 · answer #8 · answered by Anonymous · 1⤊ 3⤋
I don't know, count 'em...
2007-02-06 05:47:45 · answer #9 · answered by MIGHTY MINNIE 6 · 2⤊ 4⤋