Now fast-forward a half-century or more, and affordable, good-quality power transformers ... on budget-friendly transformers, and even shows off a nice three-tube audio amp using them.

Any audio amplifier we are likely to encounter ... a slightly worse THD at higher frequencies, for example. The power supply transformer and capacitors at the front of this amplifier are the ...

The new Audiolab 6000A MkII also delivers 50 watts per channel into 8 ohms, and it remains the same Class A/B design. The ...

Many receivers, stereos, and other audio devices come with amplifiers ... both price and performance over the A-S301. This ...