This is a TenTec Century 21 Digital model 574 I restored. It worked, but was pretty rough. I replaced the 10m crystal, repaired the narrow CW rx mode (bad 3900 op amp), repaired the CW keyer, installed the marker board from another donor rig, replaced the front panel push buttons, rebuilt the VFO (it was stuck), modified the CW sidetone circuit to raise the pitch to about 750hz, and recovered the cases. Here's a few vids and pics...
