This is one of the many versions of this type of indicator that the reader can find on our website. This is from Mullard's 1969 documentation. The indicator is 95 uA (100 uA).
It can be obtained from Mouser Electronics new crystals for surface mounting from AVX with...
This effect for guitar was found in an English magazine from 1978. The transistors can be the most...
This circuit was published in a January 1971 issue of Radio Electronics to check television...