How a 1927-1931 radio will behave today in use?

[Titan1a]

Strangely enough, you can build an IC type TRF radio with AVC running on low DC power quickly, easily and cheaply. 5 transistors that could be used as an IF stage on a superhet. All you need is an IC amplifier to produce a very nice '20's style radio. The IC only has three leads!

[Electronic M]

Originally Posted by Titan1a

Strangely enough, you can build an IC type TRF radio with AVC running on low DC power quickly, easily and cheaply. 5 transistors that could be used as an IF stage on a superhet. All you need is an IC amplifier to produce a very nice '20's style radio. The IC only has three leads!

To be an IC the package must contain more than 2 transistors, and also some internal resistors and other components. Otherwise you're glorifying a transistor into something it isn't.

[old_coot88]

Who all remembers the Raytheon CK-718 transistor (predecessor to the venerable CK-722)? Or their CK-768 (first hobby grade RF transistor)?

[DavGoodlin]

Originally Posted by old_coot88

Who all remembers the Raytheon CK-718 transistor (predecessor to the venerable CK-722)? Or their CK-768 (first hobby grade RF transistor)?

Was that in a blue package, with leads inline and shaped like a livestock trough?

[old_coot88]

Originally Posted by DavGoodlin

Was that in a blue package, with leads inline and shaped like a livestock trough?

If you mean the '768, yes.

[jr_tech]

Originally Posted by Titan1a

Strangely enough, you can build an IC type TRF radio with AVC running on low DC power quickly, easily and cheaply. 5 transistors that could be used as an IF stage on a superhet. All you need is an IC amplifier to produce a very nice '20's style radio. The IC only has three leads!

Could you post a schematic or link, please?

jr