When working (testing) with receivers there's no need to build an audio amplifier for each one (test), so why not make an universal one and putting all together in a nice little box...
I didn't draw one of my fantastic s schematics since you can build based on a better one, this one is easier to follow...
Mine doesn't have the capacitor between pin 8 and 1 (gain). The bypass is a 10uF capacitor and the 10 ohm is an 1 ohm resistor. Input dc blocking cap was added.
The final result:
On the right the input impedance tester and a 50 Ohm dummy load in a round tuna tin. on the left the frequency meter and the dip meter box.And before being placed in the box:
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