ADCOM Power Supplies and input circuit boards

[Phloodpants]

Hi Everyone,

I'm terrible at marketing; I'd rather be working at the bench, so I don't think many people even know I exist!

I sell fun DIY power supply and input board kits for ADCOM amplifiers.
My first product was a replacement GFA-565 circuit board, to fix the famous capacitor leakage issue with that model, and it's still my most popular item.

My shop is here.
Hoppe's Brain - Shop for ADCOM upgrade circuit boards
(Pronounced "Hoppy")

Thanks for looking!

Products:

ADCOM GFA-565 Upgraded input board (Bare board or fully assembled and tested.)

ADCOM GFA-555 Upgraded input board (Bare board or unassembled kit.)

NOTE: GFA-555 MK2 Boards are coming soon!

ADCOM GFA-535 MK1 Power Supply Upgrade Kit

ADCOM GFA-535 MK2 Power Supply Upgrade Kit

ADCOM GFA-555 Soft-Start Power Supply Upgrade Kit

ADCOM GFA-585 Replacement Circuit Boards (PAIR)

ADCOM GFA-545 Upgraded Power Supply Kit

Universal Amplifier Soft-Start Power Supply Board

 

[Phloodpants]

NEW - GFA-555 MK2 boards are here!

ADCOM GFA-555 MK2 input board (Bare board or fully assembled and tested.)

 

[Phloodpants]

Another new product! Do you have an early-model GFA-555 with the vertically-mounted input board? I've got boards for you now...

ADCOM GFA-555 MK1 VERTICAL Input Board

 

[Phloodpants]

There is yet another version of the Adcom GFA-555! Turns out, the very first production run of rack-mount GFA-555's had slightly different boards than the later models. I now have boards to accommodate these early 555's.

Also, when you remove the original RCA jacks, you are left with a big oval hole in the chassis. My board kits include a slick solution to this issue; they include an adapter plate and gold-plated RCA jacks.

ADCOM GFA-555 MK1 Input Board for EARLY Rack-Mount Models | Hoppe's Brain

 

[Phloodpants]

Another new product! An all-new, over-engineered soft-start power supply for the GFA-555.

Hoppe's Brain BFA-555 Smart Soft-Start

 

[Phloodpants]

New Binding Post Kits for the Adcom GFA-535 MK1

Adcom GFA-535 MK1 binding post adapter kit

Finally I've got a solution for those crappy twist-lock speaker connectors on the back of the Adcom GFA-535 MK1. The holes left in the chassis are too large to mount normal binding posts. Most people end up attaching a piece of sheet metal over the holes and drilling new, smaller mounting holes in the sheet metal. That works, but it's tedious. This FR4 adapter plate does exactly this.

Replaces these...

With these.

 

[Phloodpants]

New product!

The Problem:

You want to replace the binding posts in your amplifier, but the holes in the chassis are too large for most binding posts on the market, which are designed to fit chassis cut-outs of 10mm or 11.5mm in diameter.

The Solution:

Hoppe’s Brain Binding Post Adapter Plates.

Two fiberglass plates sandwich the sheet metal, and the binding posts fit into the plates, which are firmly attached with four M3 screws and locknuts. Simple, secure, and easy to install and service.

Get them here!

 

[Phloodpants]

New version of the GFA-565 boards just dropped! Meet the EBFA-565, the Even Better F--cking amplifier.

Get them here:
https://hoppesbrain.com/product/ebfa-565/

 

[Phloodpants]

New power supply for the Adcom GFA-565 just dropped!

https://hoppesbrain.com/product/bfa-565-power-supply/