Turntable plays 33.5 Lps very slow


Hi.. guys all my 45 rpm Lps are playing fine , but as soon as I change the belt to suit the 33 1/2 rpm Lps, it slows down to almost half I think. Its deadly slow. It couldnt be the motor since the 45 rpm's are all fine... what could it be?
akhan
also I dotn know how old it is.. how do I check if the belt slips... and how do I know that the motor bogs down...
If I was a betting man i'd say the belt needs to be replaced.
Running at 45rpm the larger pulley is used and takes up the slack.
Does the belt seem loose in the 33rpm position ?

Rick.
I agree with rick. A belt will stretch out with age. I am curious what kind of powder did you use? Odd the 45rpm platter speed was fine before you used the powder. By chance did you use this powder when you first set up the TT?
Get a new belt and don't ever put any kind of powder on it. Occasionally clean it, the pulley and the edge of the platter with isopropyl alcohol.

Let us know how it works out for you.

Regards
Jim
Well, if your LPs really are 33.5rpm, it's no wonder they play a little slow. ;-)

Kal