Done — I spaced the PCB layout out across a 160 × 100 mm board and grouped it more clearly: input/power on the left/top, amplifier parts in the middle, and speaker/output on the right.
✅ No overlap or out-of-board placement issues remain. The remaining “airwire” checks are expected because I stopped before routing, as requested by the layout workflow.
If this spacing looks good, I can route the PCB next.
Got it — I’ll route the PCB to follow the same left-to-right path as the image and include a proper ground return. I’ll set wider power/ground routing rules first, then route and verify the board.
Done — I routed the PCB tracks, including the ground connections, following the same overall circuit flow as the image.
✅ Routing completed successfully
✅ Ground is connected
✅ No airwire, overlap, missing-footprint, dangling-trace, or invalid-layer issues remain in the final check.
Transformer-isolated rectifier, 7812 regulated 12 V supply, and 2N2222 single-transistor audio amplifier PCB recreated from the reference circuit image.
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor
Qty 1
Arrow
$7.49–$33.15
Digi-Key
$8.66–$38.00
HQonline
$2.28
LCSC
$16.95–$18.79
Mouser
$10.68–$38.50
TME
$3.72
Verical
$7.62–$58.90
Controls
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