Q1 transistor, NPN 2N4401, 40314, 2N3440, 2N4036, R/S 276-2058
1pc.

R1 50K potentiometer R/S 271-283
1pc.

R2, R3 resistor, 10 ohm R/S 271-1301
2pc.

R4 10K potentiometer R/S 271-282
1pc.

R5 resistor, 3.9K R/S 271-1328
1pc

C1 .1uF capacitor R/S 272-1069
2pc.

C3 22uF capacitor R/S 272-1014
1pc.

S1 SPST toggle switch R/S 275-613
1pc.

T1 audio transformer, 1K (CT) to 8ohm, Calrad 45-714, R/S 273-1380
1pc.

D Cell battery R/S 23-550
1 pc.

Speaker, small R/S 40-246
1 pc.

plug for mic jack on radio
1pc.

hookup wire

small shielded cable for mic signal