4P1L Line stage

EWS!Warning! Caution! Servicing this preamplifier involves work with high voltages that can kill you. Do not attempt to adjust or modify any circuits or equipment described below without the required training, experience and safety skills when working with dangerously high … Continue reading

4P1L PSE Power Amplifier for audio enthusiasts Built around my favorite vacuum tube (that won’t break your bank) it sounds as good as the most praised DHTs. 4P1L is a better than original equivalent/replica of the RL2 German direct heated … Continue reading