| Ideally, when you turn a volume control on an amplifier or a mixer desk, you want there to be a linear relationship between the angle of the...
Joseph Kreutz (9)
| While a PC’s ‘line’ input generally offers acceptable characteristics, ‘mic’ inputs typically have only mediocre noise and distortion levels...
| Tape recorders have been obsolete for ages now, replaced with laptops fitted with a good-quality ‘USB sound card’. Now while a PC’s ‘line’ i...
| In the early 1960s RCA brought out a transistor that was to become truly legendary: the 2N3055. With a pair of these devices, you could put...
| This circuit is inspired by an amplifier published in the ’60s that produced 8 watts a channel into 8 Ohm and was based on AD161 and AD162 g...
| Computer motherboards and lots of other computer devices are fitted with digital audio inputs and outputs in S/PDIF format, but which only p...
| In order to be effective, any protection device connected between an audio amplifier output and the speakers needs to connect the load only...
| The patient the author had to revive was a Telefunken model T 33 B RFS broadcast radio in a wooden cabinet, fitted with a turntable, and mad...
| 48 V ‘phantom’ powering has become the standard for professional condenser microphones. Many microphones are fitted with an output transform...