01-13-2026, 08:39 AM
Years ago I restored a 620, from the same line same year, next one up.
1. Don't use water to wipe/clean the dial. The ink is water-soluble. Mineral spirits work well (try first in an inconspicuous place).
2. Try to not disturb the wires in the sense of preserving the way they are routed. II had a decent bit of hum, and then that was one wire that had to be simply jammed against the chassis and the hum would stop.
1. Don't use water to wipe/clean the dial. The ink is water-soluble. Mineral spirits work well (try first in an inconspicuous place).
2. Try to not disturb the wires in the sense of preserving the way they are routed. II had a decent bit of hum, and then that was one wire that had to be simply jammed against the chassis and the hum would stop.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
