Re: Metrix 803B Oscilloscope power supply issue

Hi all,

Very interesting thread.. I have got an Philips OP400, which is the Metrix803b. The Metrix is a Philips design, manufactured by Metrix. The unit seems to be working, but the vertical measurement is off by about 20%. When I feed a 5V DC signal the scope shows about 4 volts. I get the same offset when I use the onboard testpoint (2.5v/1kHz)

Does anyone know how to calibrate the vertical axis? Timebase is correct.

Cheers,
Kees