Variable capacitor, dual 2-gang, with balance trimmers.
Same as our item 30346 but with no corrosion
Each unit has four sections of variable capacitors with 8 - 90 pF each.
Each section has half of a trimmer across it, subtracting 0 to 5 pF
Two sections have a connection to their isolated rotor (8-90 pF each)
The other two sections are in series via the floating rotor (10-49 pF total)
All business parts are silver plated, guaranteeing a very high Q
Ceramic shaft and insulators, contributing to the high Q, supported by ball bearings at the ends
Very good condition.