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The 106CCL-3 Downhole Casing Collar Locator (CCL) Amplifier printed circuit board (PCB) is a compact cascode GO / GOI / MLS style downhole CCL amplifier suitable for use in a wide range of cased hole logging tools. (See our Casing Collar Locator (CCL) pages for more general information.) It uses a pair of transistors, but no power resistor or capacitors, and is therefore ideal for applications with limited space. The 106CCL-3 PCB is jumper configurable to run off either armor / chassis negative or armor / chassis positive line power. The transistors are ordinarily mounted in high quality machine pin sockets, but can be mounted directly to the PCB if low clearance is required. This little PCB measures only 0.6 inches wide and mounts on 1.5 inch centers.
The 106CCL-3 Downhole CCL Amplifier PCB is part of the 106 Radiation Tool™ PCB family. 106 Radiation Tool PCBs can be used to upgrade or repair tools, or an entire electronics section can be assembled from scratch using several PCBs (as in reworking an old tube / Nuvistor tool). All 106 Tool PCBs use readily obtainable components, which parts will continue to be available for many years to come, and all use convenient turret terminals for wiring connections.
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