3 ms·
That is some brutal power sag going on. Those waveforms would probably look a good bit different with the capacitors replaced. Thirty years is a long time for e
by Sanddancer 11y ago
That is some brutal power sag going on. Those waveforms would probably look a good bit different with the capacitors replaced. Thirty years is a long time for electrolitic caps, and the tantalums are probably not much better.
- cnvogel 11y agoProbably it's just the general stability of the oscillator circuit. It seems to drift around 300 kHz around its center frequency of 340 MHz, so about +/-1‰. For such a very simple transmitter that's likely demodulated with an equally simple LC-filter and an envelope detector, it could just be be right "up to spec": http://imgur.com/l47Nm4B http://imgur.com/l47Nm4B Edit: % -> ‰