Hi,

Our vintage aircraft are operated with an appr. 50 year old
oiltemp.gauge. Alas the sensorprobes have all failed.
In a test setting it was determined that the probe was of a PTC type
with the following characteristics;
T( in Celcius) R (Ohm)
120 151
110 145
100 138
90 134
80 129
70 124
60 119
50 113
40 108
30 99
10 95
We haven't been able to find a PTC sensor yet, anyone out there with a
good advice, because we would like to go on with the original
instrument,

thanks

Michiel

www.seagull-formation.nl