Harman Kardon 730 Twin Platinum Rebuild Plans & ATO Way Kit

Restore the Harman Kardon 730 Twin with the ATO Audio Platinum Rebuild Plans—a detailed, board-by-board restoration guide built to make servicing this classic receiver easier, more organized, and more reliable.

The plans cover 63 capacitor replacements and 62 transistor locations throughout the receiver, with clearly laid out tables showing original parts, recommended modern replacements, transistor alternates, and important installation notes. HK730_Platinum_Rebuild_List_Rev…

You’ll also get board diagrams, transistor pinout warnings, capacitor and diode installation guidance, safe first power-up procedures, bias adjustment information, and post-rebuild checks to help you work through the receiver with confidence.

Optional ATO Way Kit

For customers who want a complete parts option, add the ATO Way Kit.

The kit includes the components ATO Audio recommends replacing as part of a thorough and dependable restoration, while leaving certain parts—such as selected tuner transistors and output devices—to be tested and replaced only when necessary. Components included in the kit are clearly shown in red throughout the rebuild plans. HK730_Platinum_Rebuild_List_Rev…

ATO Way Kit Includes:

• 40 capacitors
• 35 transistors
• 75 total components

Choose Plans Only if you already stock your own parts, or choose Plans + ATO Way Kit for a convenient, matched rebuild package.

Restore it right. Restore it the ATO Way.