![Avionics from Sigmatek - Sigmatek manufactures a number of flight instruments for General Aviation aircraft. Avionics from Sigmatek - Sigmatek manufactures a number of flight instruments for General Aviation aircraft.](https://sarasotaavionics.com/media/image/1193/4000b.jpg?size=250)
Avionics from Sigmatek - Sigmatek manufactures a number of flight instruments for General Aviation aircraft.
![Directional Gyro For Sale: SIGMA-TEK 4000C-1 - Avionics / Parts Classifieds - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts Directional Gyro For Sale: SIGMA-TEK 4000C-1 - Avionics / Parts Classifieds - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts](https://mooneyspace.com/uploads/monthly_2018_10/517051832_20181022_152953-MS2-1.jpg.ef68fee020d6371590131befdbae5364.jpg)
Directional Gyro For Sale: SIGMA-TEK 4000C-1 - Avionics / Parts Classifieds - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts
![Directional Gyro For Sale: SIGMA-TEK 4000C-1 - Avionics / Parts Classifieds - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts Directional Gyro For Sale: SIGMA-TEK 4000C-1 - Avionics / Parts Classifieds - Mooneyspace.com - A community for Mooney aircraft owners and enthusiasts](https://mooneyspace.com/uploads/monthly_2018_10/1673474164_20181022_152820-MS4.jpg.cf15338adf50b4657bcc8dcc64d4e2a6.jpg)