Hi,

the test candidates are a pair of two SFH415-U 950nm IR-Emitters in a T1 
3/4 standard package - one used as transmitter, the other one receiver.
The receiver just has a 100k load resistor and works in 'solar cell 
mode' - i.e. no bias voltage applied.
The Emitter can handle peak currents up to 3A so I did two experiments 
with low and medium current driving (PIC direct @ 20mA / Transistor @ 
250mA).
The received signal is weak compared to an actual IR-receiver of course 
- but good enough for simple conversion to digital signal.

So the conclusion is that the world of IR-data transmission will not be 
revolutionized by this but my specific problem is well solved.

The picture of the signal traces is found at  
http://www.wieler.de/piclist/led-trx.jpg  


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