Interchangeable with any needle stock number in the 108, 109, 110, 111, 113, 114 & 115 series. This needle is not for LP use. 3mil Diamond If your LP needle is any of the related products below then this needle will work in your cartridge to play 78s. As you may be figuring out, most ADC type needles are interchangeable even though the electric specs may differ.