The Ermer Beeper is a very neat continuity tester or beeper. This one is VERY fast and also faster than the most multimeters. No display, no LED, no switch. Just a speaker to beep you through your circuit. Based on a gread scientist Christof Ermer
- Status: Complete
- Difficulty: 2/5
| Quantity | Name | Description | Signing/Colorcode |
|---|---|---|---|
| 2 | C1, C2 | 100nF capacitor | 104 |
| 1 | R1 | 1k Ohm resistor 1% | brown-black-black-brown-brown |
| 2 | R2, R3 | 5,6k Ohm resistor 1% | green-blue-black-brown-brown |
| 1 | R4 | 56 Ohm resistor 1% | green-blue-black-gold-brown |
| 2 | Q1, Q2 | BC547C NPN transistor | BC547 |
| 1 | LS1 | 50 Ohm speaker | |
| 2 | J1, J2 | 4mm binding posts | |
| 1 | BAT1 | 2xAA battery holder | |
| 2 | 2xAA batteries* | ||
| 7 | wooden box parts** | ||
| 1 | PCB |
- The batteries are not included in our kits. ** The wooden parts are optional.
If you need test leads you can use any you already have. I've found these on Aliexpress: https://www.aliexpress.com/item/4000119525148.html
You can find the manual and pictures of every step here: https://github.com/Binary-Kitchen/SolderingTutorial
- Board: CC-BY-SA 4.0 - Timo Schindler @ blinkyparts.com
- Outline SVG CC-0 - Wikipedia: Datei:Delta-shield.svg
- Idea and scheme: Christoph Ermer
If you want to buy the parts and PCB for a soldering kit you can find everything here: shop.blinkyparts.com