The transistor on this mixer can be any general-purpose transistor. The number of entries can be changed. We found it in an old documentation. Input and output cables must be shielded.
This type of circuit and with this integrated circuit appears several times on this website. The...
Using transistors of the time, this circuit was published in Radio Electronics magazine in...
The integrated circuit used in this 1982 project is not very common today. It can be adapted to...