| Headphones amplifier "B" class for use with studio or audiophile grade headphones.
JKreutz (4)
| A preamplifier for experimenting with vintage "crystal" phonographs or microphones.
| Power supply for professional microphone (48 V) able to deliver an output current of 350 mA and provided with an overvoltage protection.
| Fun activity for children. First steps with electronics by means of a simple circuit. Activité ludique destinée aux enfants. Petite introd...