[Ron Ramirez]

I'm not sure if those dogbone ceramic capacitors are still manufactured, but as Codefox said, you can use a ceramic disc cap to replace it. Two 100 pF ceramics in parallel should work fine.

Several suppliers of capacitors are listed in the Resources pages of my website. You may not find the exact same type (in this case, "dogbone" ceramics), but you can almost always find a substitute.

http://www.philcoradio.com/resource.htm