jolida 502b manual bias adjustment

I own the JoLida 502B. It was my first introduction to tubes. It is manual bias. Just use a long handled screwdriver...haven't burned myself yet. A 5 minute job at most.

the bias pots are not the problem it's where you put the probes to do the measuremants. one guy said use gloves or i guess find a meter with probes as long as chop sticks.

oh...ok - gotcha - I picked up an inexpensive multimeter from Sears. Probes are 4-5" long or so. It does take a little care to get a stable connection and when moving them, but again - no burns yet (famous last words).