4 ms·
Stress relief. Thermal / moisture expansion of the PC board (and this looks like shoddy phenolic paper) bends the leads a tiny bit and the bending forces go thr
by dom0 9y ago
Stress relief. Thermal / moisture expansion of the PC board (and this looks like shoddy phenolic paper) bends the leads a tiny bit and the bending forces go through the component. By making the leads longer, they are less stiff and require less force to accommodate, so less drift due to this.
It was a relatively common method in precision electronics.
There could be other reasons as well, e.g. if these were ceramic capacitors they might do that to avoid cracking issues. (Because ceramic capacitors drift a lot by themselves, a drift/precision explanation does not make sense)
- rdtsc 9y agoI've taken a good amount of Soviet-era electronics apart and those capacitors (the red ones) crack very easily. I think they are ceramic. In fact I remember being deliberately careful around them as they were easy to bend, when reaching in a tighter space to solder or adjust some variable resistors or capacitors.
- thesmok 9y agoI would add that there exists another standard method for stress relief http://we.easyelectronics.ru/Tools/formovka-opornogo-ziga.html http://we.easyelectronics.ru/Tools/formovka-opornogo-ziga.ht... (link in russian).