Well, after spending my $7 to get a Hakko 907 clone from the far east, I had a face palm moment shortly after plugging it to one of the Hakko 472B stations. Before turning the base on, I realized I could possibly fry this 907 iron if the pinout was not the same as the 807!!
I had recently downloaded the 472B and 807 manuals and there was a pinout for it. Surely there would be a similar one for the 907, oh if I had only thought of that before ordering, or even before posting the initial message.
Turns out the pinout for the 807 and the 907 are very different:
807: 9.2 ohm between pin 1 and 3 (Heating element) and 54 ohm between pin 2 and 4 (sensor)
907: 2.5-3.5 ohm between pin 4 and 5 (Heating element), 43-58 ohm between pin 1 and 2 (sensor) and under 2 ohm between 3 and the tip.
So to answer my own question, I should read the manuals first then if in doubt post the question, and finally, no, the 5 pin Hakko 907 will not work as a replacement of the 807 iron on a 472B base
, although it might after I re-solder the leads on the 907 to match the 807 Update: scratch that, it really does not work even if tinkering with the leads.
Cheers,
Tino