Gerard's Gerard Bril

530
Item nr.

Gerard Bril Bluetooth Amp

Another homebrew stereo set.

**Data for Gerard Bril**
Production	The Netherlands, 2020. Price was 4 €s.
Bands	FM (87.5-108MHz), Bluetooth.
Cabinet	Glasses case. Size 15.5x6x4cm.
Power	DC 5V.

The Design

The past year, I assembled a couple of mini stereo sets from AliExpress Bluetooth modules. These units have all the electronic circuitry already assembled.

All it takes to complete your set is to put it in a suitable box and install the wiring to the external connectors. The unit holds 2x3W amplifiers, an FM receiver, Bluetooth connection, AUX analogue input, MP3 play from USB, a microphone for phone calls, and IR remote control. For earlier instantiations I used small Wood boxes.

Obtained	12/2020 from Home made.
Condition	10.
Value (est.)	3,3€.

This Object

The BT unit costs about 3€, and the project requires some additional connectors and bolts, for about 1€, and a suitable box as the cabinet.

Assembly of the project typically takes about one hour. Here I thought I had found a suitable plastic glasses case and started drilling holes on Saturday, December 5th. It turned out that between the black outer layer and the soft inner layer, there was a 0.8mm steel plating. This slowed down the drilling/sawing phase considerably, and I completed construction on Dec. 6th, 2020.

Part of Gerard's Radio Corner.
Generated by SiteBuilder on 6/9/2025 by Gerard