Confessions of a #darkroom #junkie (part 1 of ♾️ many).

For my #BlackAndWhite neg developing, I've mostly used tanks and trays (for #LargeFormat), but also used a #Jobo #CPE2plus processor.

The problem: it was an old machine and the motor was struggling, only capable of running a couple of minutes at low torque and then stopping 😞.

So I tried to cash in on my #RightToRepair.

Maybe the motor brushes were ruined? Maybe a new motor was needed? (it's in fact a car windshield wiper motor)...
🧵1/ 5

Taking the motor apart however revealed that everything was just fine with. The brushes were good, there was some sign of arcing but nothing bad, and after a quick cleanup I could fire it up to the RPM and torque in the specs.
🧵 2/5

So the problem was elsewhere.

Carefully checking the circuit board with a multimeter revealed another suspicious component: the diode rectifier, whose DC output was wild. These things don't age well, and this one was about 30 years old...
🧵 3/5

Another problem was that some soldered joints had loosened up too much, so that also had to be corrected.
🧵 4/5

After a quick intervention with the soldering iron, #RightToRepair wins the day and my old #Jobo #CPE2plus plus friend is as good as new!

It's just great to get such an old beast in proper working order again, without having to break the bank buying a replacement!

This is now my standard dev method for #35mm, #6x6, #4x5 and #11x14.

My beloved home-brewed #510pyro works beautifully, with super-consistent results with all my standard films.

So if you *can* repair, *do*!

🧵 5/5

@jscaux wow! Looks amazing.
@Debrawilsonsays thanks! Nice work on your end as well, love the pinhole stuff.
@jscaux thank you. I’m still finding my way around here but it seems like a great platform.