Down the pike from Schiit Audio comes the Stjarna phono pre-amplifier. According to the now mostly Texan manufacturer, Stjarna is “an all-out, limited-production all-tube design ... includes two sets ...

From early glimpses at this little digital amplifier, it screams quality ... tapping or movement on the case transferring through the tube amps (there's a reason they're not commonly used on ...

Integrated amplifiers have become very popular again with audiophiles for a few reasons and we think it’s fair to say that expensive separates are becoming less relevant. Build quality matters.

From the micromixer topology by Barrie Gilbert [1], this amplifier allows a single-ended input to be converted to a Class ... Guide As shown in Figure 1 with an LTspice implementation, the circuit ...

A conventional tube amplifier has a circuit whose ... The design is a very conventional single-ended class A circuit, with both side of the double triode being used for extra gain driving the ...

The hardware is chunky and the software is clunky, but this is the best portable audio player I’ve ever heard. If you buy something from a Verge link, Vox Media may earn a commission. See our ...

South Africa looks set for a change in government for the first time since the end of apartheid, according to partial results from the closest election in that time. With more than half of votes ...

In the first of three parts, Andy hypothesizes that the K2-W Analog Computer Op Amp’s design has some unrevealed mad science in its input-stage design. 1. K2-W Op Amp schematic from Bob Pease ...

He proved it is possible to build a small tube amplifier with a few watts of output power per channel using ordinary PCB mount power transformers as the output transformers. Refer to the tube ...

being a two-stage single-ended design using both halves of the tube. Between the two is a three-band tone control circuit as used in classic guitar amplifiers, making for a serviceable and easily ...

The first stage of the single-ended amplifier is assembled on a single-ended op-amp with differential inputs and single-end output. It is possible to adjust the quiescent current of the output stage ...