Recent content by GBS

It's funny becase we communicated in my thread 5 years ago trying to figure this out. I re-read that and you are correct: both C42 and C29 stained, no matter how much I washed between steps--including with a sodium sulfite step. Use an orion pH meter to get to my target. The only thing I didn't...

Do you need a starter for the blix? Curious, your formula is similar to the one I have issues with. I wonder if the differneces between the relative Sodiums and Potassiums has something to do with it? This is the one user RPC says works for them with the Pot F bleach.

Ah, that's too bad. I've been down this road a lot and somehow keep getting to the same point and no one else seems to have that issue. I reread the comment linked here: https://www.photrio.com/forum/threads/c-42-is-kodaks-home-version-of-c-41.89135/post-2373450 and they're using C42 with Pot F...

@Unbuiltbread Did you ever find a source? I Google this every few months and never get a legitamate answer. I've contacted suppliers about PDTA but they want to sell 25 kilos at a price that's just not worth it. I'm in the same boat: I mix my own C41 (C29 from this group), but the Potassium...

Cheers, thanks a lot

Great, thank you. I can't tell from the listing, but is this the one that lifts and lowers with the spinning? Thank you.

Could you link to an example of that tank? Thank you!

Nice work!

Hi, Thanks for following up. This makes sense. I love your timer so I was hoping to figure out a lid solution. I don’t know CAD but I wish I did. I’ve tried a few times but have to dedicate my time to other things currently. Someone else made an auto agitator lid, but the timer is less...

Hi, really into this project. Thank you for sharing! I downloaded the Git, but I don't see any instructions for housing the stepper motor or how to connect it to the dev tank. Sorry, am I missing something? Thanks!

Hi, I ended up spending 2 years trying figure something out and arrived at what may be the closest we'll get. I'm making new cells. An Initial test in my SRT shows accuracy from 5-15EV. This is inside the original 3-17EV, but I have to look at it as a win. The only time you'll be off is if...

Thank you! I actually got a couple from APx that were the closest match, but not drop in replacements. I may need to rebuild the circuit with a different variable resistor, but I’d need help.

Yeah, no. None of those leads seem to be accurate.

Yes, a couple. They are using NOS or cannibalizing.

Hi all! Does anyone know where to find NEW CdS cells for a Minolta SRT? I have about 3 cameras that are declining in sensitivity and linearity, so the meters can no longer be calibrated across the full range of EVs. I have verified with 2 techs and other electronics sources that old CdS cells...