Hoppe’s Shop
DIY circuit board kits for audio hobbyists
Showing 1–16 of 17 results
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Adcom GFA-535 MK1 Binding Post Adapter Kit
$40.00 Add to cart -
Add-A-Buffer Adapter Boards (Your Op-Amp + TI BUF634A in a DIP-8 socket) (QTY: 5)
$30.00 Add to cart -
BFA-555 Smart Soft-Start Power Supply for the Adcom GFA-555
$220.00 – $340.00 Select options -
Binding Post Adapter Kit
$30.00 – $45.00 Select options -
Earth-Loop Breaker Board
$25.00 Add to cart -
GFA-585 Cable Assembly Kit
$40.00 Add to cart -
“Capacitor Hats” for Large Aluminum Electrolytic Capacitors
$25.00 Select options -
ADCOM GFA-555 MK1 Input Board for EARLY Rack-Mount Models
$100.00 – $380.00 Select options -
ADCOM GFA-555 MK1 VERTICAL Input Board
$80.00 – $380.00 Select options -
ADCOM GFA-555 MK2 Input Board
$80.00 – $380.00 Select options -
Adcom GFA-555 MK1 Input Board
$80.00 – $360.00 Select options -
Adcom GFA-565 Replacement Circuit Board
$80.00 – $380.00 Select options -
Adcom GFA-535 MK1 Power Supply Kit
$140.00 Add to cart -
Adcom GFA-585 Replacement circuit boards. (Pair)
$160.00 – $760.00 Select options -
Adcom GFA-545 MK1 & MK2 Power Supply Kit
$150.00 Add to cart -
Adcom GFA-535 MK2 Power Supply Kit
$140.00 Add to cart