The PHILCO Phorum
X1/Y2 safety caps - Printable Version

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X1/Y2 safety caps - bridkarl - 09-25-2025

This appears to call for an X2 safety cap. My issue is the size for an .01uf cap makes it hard to fix two larger X2 caps inside the 3903dg bakelite box.
Would these disc caps be acceptable or do I need to use the larger X2 caps - the boxy yellow ones.

RE: X1/Y2 safety caps - morzh - 09-25-2025

Your circuit does not call for X-cap. It calls for two Y-caps.

RE: X1/Y2 safety caps - bridkarl - 09-25-2025

But isn’t this x1/y2 cap I included a pic of the equivalent of a y2 cap?
I always thought they sold the x1/y2 disc caps as a smaller alternative.
I usually use the Y2 caps but I happened to be out of them. No big deal to order more - although there’s a 20 percent tariff now. Sigh…

RE: X1/Y2 safety caps - RodB - 09-25-2025

Use the blue disc x1y2 cap. It means you can use it for either x1 or y2.

RE: X1/Y2 safety caps - radiorich - 09-25-2025

Hello bridkarl ,
They do sell them in smaller package it's made by Vishay it's both X and Y rated part no. VY2103M59Y5VS63V0 they are .5 inches in diameter .
I bought 100 of them from mouser electronics and paid about 30 cents each .

Sincerely Richard

462ron - 462ron - 09-26-2025

That blue X1Y2 cap you have pictured is exactly what I use, they fit in the Bakelite block just fine!

Ron

RE: X1/Y2 safety caps - bridkarl - 09-26-2025

I just ordered 100 from
Mouser. These were 18.3 cents each but Mouser added a $10.30 tariff charge so it works out to 28.7 cents each before shipping.

RE: X1/Y2 safety caps - RodB - 09-26-2025

Now you have to acquire 50 radios to put those caps in.

RE: X1/Y2 safety caps - bridkarl - 09-27-2025

My wife thinks I have 50 already.