In this episode, I restore a vintage audio amplifier, the 1977 Hitachi HA-330 OCL type amp. For this vintage audio repair, I had to recap the whole unit and make a small modification required to upgrade the new larger capacitors and give this vintage amplifier a new life.
The second episode of The Retro Repair Guy. A series aimed at retro and vintage electronic repair and restoration.
00:00 Snazzy Intro 00:15 Show Intro 01:09 Tiny history and features 03:42 Note about the large five-legged capacitors 06:23 Cleaning the faceplate and exterior of the unit 08:00 Word of caution about the large capacitors 08:27 Modification for new capacitors 10:23 Reassembling the unit 12:38 Summary of the job performed 13:53 Before and after 15:00 Wrap up 15:20 Testing the unit 16:13 Credits