Identify Symbols on Circuit Diagrams for VHF Radio Build
Image #1

The two components in the red box are the two halves of a 74HC74 flip-flop. (The part number is a bit out of place, but is present -- look under the right half.)

The component in the blue box looks like some sort of adjustable inductor or transformer.

Image #2

The component in the blue box is a MOSFET. Andrew Morton's interpretation of the part number as "2SK1904" looks plausible.

The component in the purple box is a 1MΩ potentiometer. (This diagram is using IEC resistor symbols, which look like a rectangle instead of a jagged line.)

The component in the green box, on the right, is a coaxial connector of some sort.

The component in the left brown box is using an uncommon symbol for a Zener diode; the "12V" marking is probably supposed to be its breakdown voltage. The brown box on the right is drawn as a normal diode -- this may be an error, given that it's also marked as "12V".

The symbols in red and yellow boxes all look like inductors of various sorts. The ones with T's across the middle are adjustable; the ones with  a line next to them have a core. I'm not sure what "VK200" would mean either; it may be an abbreviation in another language.

Image #3

Blue box is an inductor, connected to ground (the inverted T below it).

Red, yellow, orange, and purple boxes all look like adjustable inductors and transformers, similar to ones which appeared in previous images. I'm not sure what the significance of the box is supposed to be; it may mean that they should have metal cases.

Green box is two crystals. I can't quite read the text, but it probably indicates the frequency and cut.