Vermes
Advanced Member level 4
![](https://obrazki.elektroda.pl/7360727200_1353268031_thumb.jpg)
Presented here design is a frequency meter based on kit AVT 2269 with minor changes:
- the device uses a more accurate quartz resonator – DS32KHZ (quartz oscillator with temperature compensation TCXO that operates with output signal 32,768kHz
- presentation of measure results is carried out by displays TIL311 controlled by BCD signal, what allowed to resign from two chips 4543 (Decoder BCD to the code of indicator of 7-segment LED), by plugging the displays directly to the 4553 – in this way a little more space in the Hammond housing was gained
One of these pictures presents the frequency measurement at the output of sample system DS32KHZ.
![](https://obrazki.elektroda.pl/7208855900_1353268119_thumb.jpg)
![](https://obrazki.elektroda.pl/3714433800_1353268179_thumb.jpg)
![](https://obrazki.elektroda.pl/5947449400_1353268220_thumb.jpg)
![](https://obrazki.elektroda.pl/1046128700_1353268247_thumb.jpg)
![](https://obrazki.elektroda.pl/3502604700_1353268288_thumb.jpg)
![](https://obrazki.elektroda.pl/9448126500_1353268322_thumb.jpg)
![](https://obrazki.elektroda.pl/2177341300_1353268566_thumb.jpg)
![](https://obrazki.elektroda.pl/3321151300_1354064360_thumb.jpg)
Link to original thread - Miernik częstotliwości na wyświetlaczach TIL311 i DS32KHZ