Cordless 80's CB radio microphone

[Bopperboy]

Can anyone tell me what component is missing(red circle), it's a four legged transitor type and it works on abt 49mhz. Thank you Ricky

[Meat-Head]

Dunno. Don’t fcuk about, go to local car trunk sale
grab baby monitor, use that instead, or at least see if reference they 49mhz