Profile: Alan Industries, Inc. specializes in providing attenuators. Our products include programmable attenuators, continuously variable attenuators, rotary attenuators, terminations & loads, manual switch attenuators and fixed attenuators. Our 50TTL-3 series of programmable attenuators combines an extended frequency range with a direct TTL interface. This series is ideal for ATE testing over the frequency range of DC -3 GHz with a total attenuation range up to 127 dB. With the TTL logic circuitry located entirely within the housing, all DC and TTL connections are made via a convenient multipin connector. Our 50F & 75F series of feedthru terminations are dual terminal devices intended to terminate a transmission line to a high impedance indicating device, such as an oscilloscope. The units are available in 50, 75 and 93 ohm impedance with a wide range of connectors. The rugged construction, low SWR, 2 watt power rating and broad frequency coverage make them ideal for most laboratory & system applications.