![](https://jtecheng.com/wp-content/uploads/2015/04/rd1992_relay_mod_whiteboard-e1429122616453-570x350.jpg)
An error message is emanating from our beloved Racal Dana 1992 Frequency Counter. It’s a classic but useful piece of test equipment, and we’d hate to see it go. Poring over the service manual, the timing error correction hybrid (TEC) is supposed to have a stop count of 800 +/-220; […]