aarpay via ElectronicsKB.com wrote:
The original capacitor was a small blue disc, about .5 centimeters in
diameter, with the following writing on it:

B
152K
1KV


The 1KV marking is 1000 V. The suggested RS component was 50 V.

152K suggests 1500pF 10% tolerance

With twenty dollars, You can buy five hundred of them here for your
experiments!! :-)

http://www.ecrater.com/product.php?pid=1240000

Note the description of the coding in the advert.

--
Adrian C