Hi! The D3a version of the differential (fully balanced) LCR phono preamplifier series is finished. In part 1 about this preamp I ...

Hi! In posts about the ultimate line preamplifier I already mentioned a few times that a companion phono stage is planned. In the ...

Hi! So far I always used a certain type of NOS paper in oil caps in the 10Y line stage. Since my stock of these capacitors is dwindling, t...

Hi! This months tube is an electrically equivalent tube to the 6SL7 which was presented last month. The Loktal type 7F7. Like ...