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For resistors and capacitors

(Joseph-Henri Lévy)

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04/04/2025

Color codes for electronic components.

Carnets TSF

Home First steps

First steps Cleanings Before plugging in Bad contacts A good antenna A good ground

Costs in the 20th century

Costs in the 20th century The US dollar in the 20th century

Old capacitors Old markings Replacement Reforming Leakage current

AWG gauges Slide rules

Slide rules Logarithm tables

Inductance

Inductance Calculator Calculation principle Colinear mutual Coaxial mutual Variometer mutual

Honeycomb TSF circuits

TSF circuits Dummy antenna Tuning circuits A Galena Direct detection

Ground Tube tester

Tube tester Mini tube tester for European tubes Eurelec tube tester

Redoing a broken knob Tubes

Tubes Tube overview A441 dual-grid A409 triode Re-shielding Regeneration Tube library

Batteries and accumulators

Batteries and accumulators Replacing batteries and accumulators 67V batteries Head filtering

Mains transformer Ultrasonic cleaning Bottom drawer Chemistry and TSF Color code TSF bibliography

TSF bibliography TSF bibliography - FR - 1 TSF bibliography - FR - 2 Tube catalogs TSF-bibliography-data

GéGé/Kosmos History of TSF

History of TSF Transmission Reception The triode Radiotelegraphy

Tables and constants Handy tricks Documents Links

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