I recently acquired an Instruction manual with schematic for the Granada CB-4. The Granada CB-4 and the SparkOmatic CB-1023 are basically the same radio. They were very common, and neither was covered by CB Sam’s or CBtricks. The radio examples I restored had bad finals and a few associated components. You can’t go wrong by replacing the final with a 1306. I also did my usual conversions by replacing the bulbs with LED’s and changing the DIN Jacks over to a Cobra 4 pin. A difficult task on these radios. The bezel is very thick and the hole is too large.
