Hello, I wonder if someone may recognize this receiver. The label say Serpent but the case look very Futaba. Need to know before I buy a transmitter and crystals. I have not found any images of an opened Futaba receiver, so I am lost...maybee someone recognize the circuit board?

TIA

Looks like a R133F.

It does not fit the location of the crystal.

R153F and R203HF has the very same casing and both is as 27MHz FM.
That is why a think it is a Futaba but with a different label.

Most likely is a futaba.

I appreciate your effort, but unfortunately it does not help. Yes, it most likely is a Futaba receiver rebranded. But searching this incredible place I have found some of the IC:s and the 455KHz quartz filter. The 31136G is used both for single and dual conversion but it should be one more IF quartz filter I think. So my guess so far is that it is a single conversion receiver wich will give the crystal to be used. The decoder IC I still have to find out but the cheapest guess is PPM.