HP Agilent 3561A Dynamic Signal Analyzer. Finally I managed to secure this interesting device. But unfortunately, shit happens! The unit came ok from outer physical appearance, but inside, seemed like...... Read More

This is one of the measurement device that has been on my list for a while, it’s HP/Agilent 8903B distortion meter (well, Tektronix AA501 is also on my list). It’s...... Read More

In order to have better view (and better understanding) of how stuff works, especially in audio, I need to have more testing equipments. Unfortunately, those are quite expensive for a...... Read More

This weekend, I play a bit off topic from my regular hobby, which is audio. This is an old HP Palmtop 200LX. I own several units but due to improper...... Read More