Cardboard and Plastic Blog

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Parts of an LP record

If you want to talk to other people about vinyl, it helps if you know what the parts of a record are called. Here’s a guide, complete with pretty diagrams. Lead-in The lead-in (shown...

1949 RCA 45 0

Fun facts about forty-fives (number one)

When RCA Victor introduced the 45 rpm record in 1949, they introduced an exciting new feature. Instead of just boring black vinyl like Columbia’s LPs, their records were coloured vinyl. Not only that, but...

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Why do 45s have large holes?

  A friend recently asked me why 45s have larger center holes than LPs. For her benefit, I’ll start with the short answer. RCA versus Columbia In 1948, Columbia introduced their 33 1/3 rpm...

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Dinking. Yes, dinking.

So, you know how some 45s have those big center holes? Well, they didn’t start out that way. They were pressed with a small center hole and then dinked. Dinking is a form of...

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What is vinyl, anyway?

Modern records are made from polyvinyl chloride or PVC. Generally we just call it vinyl. Yes, that’s the same stuff that vinyl siding is made from. And PVC pipes. And flexible plastic tubing. And...