Reading time: 4 minute This assembly complements the "10W Amplifier" 8109 set and is followed by the third "Audio Mixer" 8203 assembly set. All these 3 vintage DIY electronic kits together form an audio frequency amplification chain, having absolutely all the elements necessary for a classic amplifier. . The preamplifier with tone corrector is made with 6 silicon transistors, distributed on several floors.
Reading time: 2 minute It presents a simple dynamic light scheme, recommended for beginner builders. The assembly is able to generate multiple dynamic variants such as: sequential operation (direct and reverse) and a pseudo-random one.
Reading time: 2 minute For those who want to build a sequential dynamic light for 8 LEDs, this electronic DIY IPRS kit is recommended because its construction is extremely simple. The assembly is based on 3 integrated circuits: CDB 404 (SN74F04N) - the clock generator and two CDB 495 travel registers (SN 7495 / 74LS95B).
Reading time: 5 minute The vintage DIY electronic kit presented is an electronic assembly called "Audio Mixer", because with the help of voltage amplification stages the "mixture" of audio frequency signals provided by the microphone, tape recorder, electromagnetic dose or crystal is achieved. Of course, the assembly can be adapted for other types of inputs.
Reading time: 4 minute The neon lamp powered by this installation allows lighting in the absence of the electrical network (for example in camping conditions) or in case of damage to this network. The electronic DIY kit presented aims to familiarize the amateur electronics engineer with the construction and operation of a simple converter with transformer.
Reading time: 4 minute This DIY electronic kit contains all the components needed to build a 15W audio frequency amplifier. Its performance, the relatively affordable price of the components, the ease of execution, make it accessible to any electronics enthusiast passionate about the audio field.
Reading time: 4 minute The assembly can be used to amplify the signals obtained from a pickup (vinyl player) with magnetic dose. The vintage DIY electronic kit presented is intended to familiarize the electronics technician with the performance and construction of preamplifiers with the corrected frequency characteristic.
Reading time: 3 minute The electronic DIY kit presented is intended to familiarize you with the performance and construction of preamplifiers with low input impedances. The realized assembly can be used as an amplifier for measuring devices, in automations, picup with ceramic dose, etc.
Reading time: 5 minute The vintage DIY electronic kit presented extends the service life of nickel cadmium (NiCd) watch batteries, whose voltage did not fall below 70% of the nominal voltage value of 1.5V, by their periodic regeneration, every few months.
Reading time: 4 minute This vintage DIY electronic kit is a time relay, with a time delay of at least 165 seconds, indicated (at that time) to signal the 3 minutes of a telephone call being exceeded. This 3-minute delay was used because at that time (1988), if this time was exceeded, additional costs were imposed. Of course, the assembly has various other applications in electronics and not only, being relatively easy to build.