Doug Hammond's Dragonfly (PCB layout by Timo Vähälä)

2 X ECC83 + ECC99. 2 Watts, back to back PT topology (12 Vac input).
A Mean little thing. When played clean you can tell right away it is close relative to Vox AC30 TB
(Surprise, check  the schem.) When pushed creates character of its own with masculine old school
poweramp distortion (AC/DC and Airbourne comes to mind). My all-time favourite amp.

At the end of the page is zip-package with necessary files for one to build this Dragonfly variant.



















Original schematic and Doug's comments


BOM, schematic, component placement, PCB layout and info-file.


For added flexibility: similar package for center tapped PT:s.


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