| Linear Audio Volume 4 is the fourth issue in a series of printed bookzines dedicated to technical audio and perception. This issue again off...
All items tagged with Triode and preamp (3)
| This valve power amplifier is a push-pull design using two EL34s (or their 6CA7 US equivalents). It has been kept fairly simple to avoid pro...
| This power supply unit (PSU) provides hum-free and stable operating voltages for valve preamplifiers and power stages. Negative bias voltage...