You can get a very nice, silver-plated, adjustable Microlab/FXR sampler (isotee) here for $15:
http://www.ridgeequipment.com/store/attenuators.html I've bought a lot of stuff from Nick and the guys at Ridge Equipment over the years, both direct, via Ebay, and at Dayton. They have a lot of goodies at very reasonable prices - good guys to deal with. I have about ten of these samplers, or ones like them. They're quite handy for desense measurements, getting a sample of transmitter power to go to a spectrum analyzer, service monitor, receiver, or other test equipment that only tolerates microwatts of signal level, using it as a makeshift variable attenuator (terminate the thru-line and adjust the tap to get the desired attenuation), etc.. I keep one in the lid/pouch of each service monitor, spectrum analyzer, cable kit, etc. so I'm never caught without one. Get 'em while they're cheap! --- Jeff WN3A