Just posting a quick update on the status of Rich from New Zealand’s Zenith Porthole restoration.
Power supply block has been cleaned up and rebuilt. All capacitors replaced, both of the corroded high wattage sand covered resistors in the audio section and one small charred 1/2 watt resistor.
The main chassis is undergoing complete rebuild. Everything is going well except for a bad volume control/power switch assembly. No direct replacements are available at this time so we might have to improvise this a tad!