Device for Measure Crystals and Fine tuning of Quartz Crystal Ladder Filters
Device for Measure Crystals and Fine tuning of Quartz Crystal Ladder Filters
Device for Measure Crystals and Fine tuning of Quartz Crystal Ladder Filters
Device for Measure Crystals and Fine tuning of Quartz Crystal Ladder Filters

Device for Measure Crystals and Fine tuning of Quartz Crystal Ladder Filters

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Device for measure crystals, adjusting and fine tuning of quartz filters.

Soldering Project KiT 

This design is developed for adjust a ladder quartz filters with the same resonators. The stand is made on a single-sided printed circuit Board with a size of 150x90 mm and consists of a stabilized generator and a breadboard for crystals. The generator is built on the transistor and coil, frequency tuning is carried out by trimming capacitor. On the breadboard – quartz filter and jumpers that are connected to the generator and the output sockets of the stand. In the circuit of the breadboard there are seven trimming capacitors, which, if necessary, can be connected to the filter to adjust its parameters. The RF voltmeter or a conventional RF probe should be connected to the output sockets of the stand.

Kit include:
PCB 150х90 mm, all elements necessary for assembly. 

Attention: 8 pcs Crystals  on photo are for visible how tuning looks and not included to KIT.