IEC 60151-6:1965 pdf download,Measurements of the electrical properties of electronic tubes and valves. Part 6: Methods of application of mechanical shock (impulse) excitation to electronic tubes and valves.
IEC 60151-6:1965 specifies methods for applying mechanical shock, or impulse excitation, to electronic tubes and valves during electrical-property measurements. Its purpose is to provide controlled and repeatable mechanical stimulation so that the resulting electrical effects, such as transient signals, microphonic response, contact disturbances, or changes in operating behavior, can be observed and evaluated.
The document describes the general arrangement for mounting the tube or valve, applying a defined mechanical impulse, and monitoring the relevant electrical circuit. It addresses the direction, duration, magnitude, and manner of the shock, together with the support, fixture, and environmental conditions needed to obtain comparable results. The measuring system must be capable of detecting short-duration electrical changes without introducing significant mechanical or electrical interference.
Attention is given to keeping the tube at specified operating conditions before and during excitation, including heater or filament supply, electrode voltages, current, load, and signal connections. The test arrangement should distinguish the response caused by the applied mechanical shock from background noise, vibration, supply fluctuations, or fixture resonance.
Results may be reported using the observed amplitude, waveform, duration, polarity, repetition, recovery behavior, or other defined characteristics of the electrical response. Relevant details include tube type, mounting orientation, shock direction, excitation conditions, circuit configuration, and measuring bandwidth.
Overall, IEC 60151-6:1965 supports assessment of mechanical sensitivity, microphonics, robustness, and service suitability of electronic tubes and valves in vibration-prone equipment.