Profile: Butlers Electronics Ltd. is a supplier of electronics products. We also provide with instrumentation and related accessories. Our 86222B sweep oscillator plug-in is designed for 8620 series sweep oscillators. It provides with continuous swept wide range frequency coverage. Its power output is calibrated and offers substantial linearity about 2MHz over the entire frequency range. It also offers a crystal marker system that provides comb markers. We also provide with a range of batteries.