Tag Archives: H400

Harmony H400 Tube Guitar Amplifier Repair

Cross-posted from the Rain City Audio Repair Blog: I recently had another Harmony amplifier, the  H400, through the shop for an overhaul. It’s owner, who previously sent me a Harmony H500 for service as well, took it to a local … Continue reading

Posted in Audio, Radios and Tubes, Vintage | Tagged , , | 3 Comments