A digital voice recorder circuit that used for voice recording and stored inside the IC. This circuit can keep the voice recording for approx. 100 years without power supply and repeat recording up to one million times. Technical specifications: – Power supply : 3-6VDC. – Consumption : 120mA max. @ 6VDC. – Recording time :…
Over the past years, Chinese hams made significant progress in QRP kits production and building. The most famous kit providers are BA6BF for his KN series SSB/CW transceivers (KN-Q7, KN-Q8, KN-Q9, KN-Q10 and KN-Q10A), BD6RA for his Thunder series SSB/CW transceivers, BD4RG for his HB-1A and upcoming HS-1A CW transceiver, BG6CG for his CG series…
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…