EDN

Accurately predict measured noise figures for transformer coupled differential amplifiers (Part 1 of 2)

Using a transformer coupled differential inverting amplifier stage can give a very low input referred noise voltage or Noise Figure (NF) with exceptional SFDR/mW. The NF equation needs to include ...
The New York Times

QUESTIONS AND ANSWERS; Why Transformer Coupled Audio Amplifiers Usually Employ Only Two Tubes--Function of a Small Condenser in Series With Lead--in of Antenna

TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the full text of this article in its ...
Audioholics

Monoprice Monolith 7-Channel Amplifier Review

The Monoprice Monolith is an astounding 7-channel, 200wpc amplifier with two massive teroidal transformers delivering gobs of power and textbook performance at a value price point. Our amp of the year ...
EDN

Accurately predict measured noise figures for transformer coupled differential amplifiers (Part 2 of 2)

Using a transformer-coupled differential inverting amplifier stage can give a very low input referred noise voltage or Noise Figure (NF) with exceptional SFDR/mW of power. Modern FDA’s can deliver ...