Jon Paul

Hello all, just joined this Tek forum.

Restored a fine 7904A, low SN, 1982,  stored for  decades. Usual cleaning of switches, contrlols, the CRT, bright and in focus.   But all surfaces, PCB, PS, HV, CRT coated with dust.

Suggest I vacuum with brush nozzle, finish with compressed air? Which is better?

Wary of Air, or Vacuum  ESD, damage, should I Use Metal nozzles , earthed?

Many thanks, Have an absolutely fantastic day 

Jon
PS Looking for an original printed 7904A service manual (for our non-profit museum use).