The 7S14 batteries have a voltage of 1.35 volts, New silver oxide
batteries are about 1.55 volts. You can replace these mercury types
safely with silver oxide types in a 7S14. I have done this about a
year ago and worked perfectly. Empty or nearly empty batteries
showed on mine an increased noise band (mind you they where not
complete dead).
After replacemend I did a recal on the unit, especially the
avalanche voltage, loop gain, DC bal and MEM bal are affecting the
noise.
Fred de Vries
