| In the first part of this article, we described all of the circuit boards. Now it’s time to look at how they fit together. We first describe...
Bob Stuurman (4)
| This final amp is easy to build. The stereo version essentially consists of two amplifier boards, a power supply board for the high voltage...
| 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...
| It is often desirable to know how hot a part is. The usual method is to use a thermometer to measure the temperature, but this may not alway...