General view

Variable capacitor 2 × 323.8 pF

Electronica

Year
Unknown
Category
Components
Type
Capacitors
Documentation score
1/5
Last edited
03 OCT 2026

Specifications

Type
dual variable, air dielectric; 3:1 reduction drive; ceramic insulation; rotor on ball bearings at both ends
Capacitance, max
323.8 pF

Sources: [1]

Description

The 2 × 323.8 pF variable capacitor is a dual tuning capacitor for radio receivers made by Electronica in Bucharest, with a cast Elektron-alloy frame, dichromated and lacquered with synthetic resins to withstand tropical conditions [1]. Variable capacitors were first made at Radio Popular and their technology was improved over the years; the works also made capacitors with unequal sections and trimmers [1].

Both sections (input and oscillator): capacitance swing 323.8 pF, residual capacitance under 11 pF, initial alignment 60 pF, tracking tolerance ±0.4% (input) and ±0.9% (oscillator), plate spacing 0.20 mm, plate thickness 0.4 mm [1].

Documents

No documents available yet.

References

  1. [1]D. F. Lăzăroiu, N. Millea et al. – „Electronica românească. O istorie trăită”, vol. I, AGIR, section II.6 „Componente, subansamble și ansamble conexe”, II.6.3 „Alte componente și subansamble pentru produsele electronice”, p. 268