Found in a Philips' 1968 documentation, this circuit is slightly different from the previous one. The components are also from the era, and modern equivalents can be used.
This an old commercial receiver found in a year 1958 magazine. The circuit uses some transformer...
This circuit was found in an old Electronics Now. The transistors are general- purpose and the...
This circuit is from a documentation from the 50's. The transistor is a Germanium PNP from the...