QUESTION ON LP


Dear all:
Recently I purchased one big-lot of LP and found something that's interesting.
It's not the normal type of 33 1/3 or 45 rpm that I used to know but it was something new to me. I tried search on Google but can't get a good result.
This type of LP is about 10-inch in diameter. Weights heaver then normal LP and also thicker. The material felt like "metal" but of course is not.
Would you please help me to identify this type of LP and on what type of turntable can it be play on. Also, is this type of LP worth anything (most of them are classical)?
Thanks a lot for your answer.
Happy listening
cibr

Showing 2 responses by mlsstl

Sounds like you have an old 78 RPM record. You'll need a turntable that includes a 78 RPM speed (that was typically included on most consumer turntables from the 60's and before, and was still quite common into the 1970s.)

For best tracking, you'll also need a stylus designed for 78 RPM records. The grooves are not the same size as 33s and 45s and a typical phono cartridge stylus will ride too low in the groove of a 78.

Finally, the playback equalization curve was not standardized back in the days of the 78. For the most accurate playback you may need a phono preamp with an adjustable curve.
You might do some research on the specific 78 you have. Some titles are rather rare these days and it could be valuable. The odds of that probably aren't high, but it is worth checking out.