Building Filters

Fluke PM6690 300MHz Universal Frequency Counter
- Manufacturer: Fluke
Up for sale is a used Fluke PM6690 300MHz Universal Frequency Counter. It has been tested and is in good working condition. The display has lines and the chassis shows heavy sings of use.
$725 USDBaltimore, MD
Fluke 199 200MHz 2.5GS/s Digital Oscilloscope Scopemeter Multimeter
- Manufacturer: Fluke
- Model: 199
Up for sale is a used Fluke 199 200MHz 2.5GS/s Digital Oscilloscope Scopemeter Multimeter. It has been tested and is in good working condition. Battery condition is unknown. A power adapter and probes are include...
$700 USDBaltimore, MD
Fluke 199C 200MHz 2.5GS/s Digital Oscilloscope Scopemeter Multimeter
- Manufacturer: Fluke
- Model: 199C
Up for sale is a Fluke 199C 200MHz 2.5GS/s Digital Oscilloscope Scopemeter Multimeter. It has been tested and is in good working condition. Battery condition unknown. A power adapter and a carrying case are inclu...
$920 USDBaltimore, MD
Tektronix FCA 3020 timer counter analyzer 20 GHz opt 14B
- Manufacturer: Tektronix
- Model: FCA3020
used Tektronix FCA 3020 timer counter analyzer 20 GHz opt 14B. 3 inputs tested; unit could use a calibration. 100-240v 50-400 Hz mains - can be used in aircraft. manufacturer's original description below, it may ...

Anritsu MF2413B 10Hz - 27GHz Microwave Frequency Counter AS-IS
- Manufacturer: Anritsu
- Model: MF2413B
Up for sale is a used Anritsu MF2413B 10Hz - 27GHz Microwave Frequency Counter. Input 1 is in good working condition but Input 2 is bad. Sold AS-IS.
$1,400 USDBaltimore, MD
Airpax,79U8D2,Frequency Detector Module
- Manufacturer: Airpax
What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...
$60 USDGalion, OH- Trusted Seller
$39 USDMuskegon, MI 
53131A | HP Universal Counter 225MHz NO COVER - Used
- Manufacturer: HP
$529 USDBaroda, MIHP 53131A Universal Counter 225MHz NO COVER
- Manufacturer: HP
- Model: 53131A
“Used item as seen in the images. 30 day warranty included.” HP 53131A Universal Counter 225MHz NO COVER 9-29F-72530-CH
$540 USDBaroda, MIHewlett Packard 53131A Universal Frequency Counter 225MHz
- Manufacturer: HP
- Model: 53131A
“Used item as seen in the images. 30 day warranty included.” Hewlett Packard 53131A Universal Frequency Counter 225MHz 9-28F-82306-JL-CH
$508 USDBaroda, MIHP 53131A Universal Frequency Counter
- Manufacturer: HP
- Model: 53131A
“Used item as seen in the images. 30 day warranty included.” HP 53131A Universal Frequency Counter 9-29F-73763
$540 USDBaroda, MI
53131A | HP Universal Frequency Counter - Used
- Manufacturer: HP
$529 USDBaroda, MI
$498 USDBaroda, MI
Calnex Rb-GPS
- Manufacturer: Calnex
The Calnex Rb/GPS Frequency Reference provides a stable 10MHz and a 1pps measurement reference that can be used with Calnex's Sync testers.
$835 USDFarmingdale, NJHP 5326A Timer-Counter Module, 2-Channel. 6E
- Manufacturer: HP
Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...
$104 USDDuncan, SC
