The high speed protocol PACTOR-4 (P4), is THE HF-Data protocol of the 4th generation, using the most modern methods of adaptive channel equalization, channel coding and source compression. The resulting highly adaptive ARQ mode adjusts itself almost perfectly to the varying conditions of the short-wave channel. Due to the narrowly synchronized ARQ grid (like with…
by VE1BWV LINK
With a simple, clean design this Elekit TU-879S single-ended, class-A vacuum tube amplifier kit echoes past greats like the Japanese made Audio Note Ongaku. Supplied with EH 6L6 tubes, this versatile amplifier is able to handle just about any octal based power tube on the current production market. We have tried it with JJ KT77,…
Model 8LS Stereo Integrated Tube Amplifier Stereo Integrated Tube Amplifier Kit that is easy to build, sounds great, and is just fun! The Stereo Integrated Tube Amplifier utilizes 5670 triode and 6005 pentode tubes. The amplifier has built in volume control so that it can be driven directly from a CD player, tuner,…
Now you can build your own valve radio with a combination of old and new technology. The valve provides strong reception and the typical sound of valve radios, while a modern audio IC and a high-quality loudspeaker provide an optimal sound level. In addition to the characteristic sound, the warm glow of the valve heaters…