This circuit was found in documentation from Analog Devices from the 90s. The circuit uses components from that time, which are uncommon today.
We found this circuit in an 80's Radio Electronics. It can still be easily assembled as the used...
April 2017 - Texas Instruments' new high-precision TMP468 sensor can now be obtained from Mouser...
In fact, the maximum output current of this source depends on the transformer which can be 6, 7.5, 9...