Has anyone on here played with pummer circuits?

[stormgren@obsidianmoon.com]

@ai6yr @MLE_online I was just doing the same thing here, I would swear I've got some around here I could part with.

[mle_online@social.afront.org]

@acesabe yea, i order from aliexpress, and the prices are good, but im not going to mail order a single chip from china

[mle_online@social.afront.org]

@RueNahcMohr you always say canadian mail is extremely slow and unreliable though!

[mle_online@social.afront.org]

@ai6yr @Stormgren if you do and can, that would be amazing

[johns_az@mastodon.social]

@RueNahcMohr @MLE_online
Or me. (why I save scrap PCBs with socketed parts) hehe

[ai6yr@m.ai6yr.org]

@MLE_online @Stormgren MC1488 quad line driver should work, it's the same thing but 4x instead of 8x.

[ai6yr@m.ai6yr.org]

@MLE_online @Stormgren Hmm, I guess don't have the enable. Not sure if that's necessary... I have more I can go look at lol. https://www.ti.com/product/SN74AC240#tech-docs

[mle_online@social.afront.org]

@ai6yr @Stormgren What's enable?

you would know better than me. This is the circuit I was planning to build

[stormgren@obsidianmoon.com]

@ai6yr @MLE_online Yeah, the enable is required to keep the circuit from triggering as long as solar input is present, if I am understanding the circuit correctly.

[mle_online@social.afront.org]

@Stormgren @ai6yr oh, an enable pin

[johns_az@mastodon.social]

@MLE_online
What circuit are you going to build? I see quite a few out there.

[mle_online@social.afront.org]

@JohnS_AZ this one seems simple and easy enough

[ai6yr@m.ai6yr.org]

@Stormgren @MLE_online Ah, then the ones I have won't work for the enable. Lemme look at my other pile, lol.

[johns_az@mastodon.social]

@MLE_online hmmm, I think I have everything except the nicads.

[mle_online@social.afront.org]

@JohnS_AZ I am planning to just use a couple supercaps in place of the batteries

[ai6yr@m.ai6yr.org]

@Stormgren @MLE_online look! DM the address to send them to. Lemme find some static safe foam and a little box

[bytex64@awesome.garden]

@MLE_online FWIW, Mouser does have a somewhat hidden economy shipping option that’s $6. But yeah, still bananas for a single part.

I’ve been doing inventory on my parts and it occurs to me that I have a lot of extra stock I could share, if only there were some way to do it. I’ve thought it would be neat to have some kind of parts-share site that would allow you to find someone local who has an extra chip or 50K pot or whatever. I think safety might be an issue for sharing mailing addresses. I dunno.

[ai6yr@m.ai6yr.org]

@Stormgren @MLE_online Four enough? (not that I have ever used these once in the 20? years they have been in my garage).

[mle_online@social.afront.org]

@ai6yr ya, that's plenty!

[petrillic@hachyderm.io]

@bytex64 @MLE_online I would love this in PartsDB. At least inside a closed network.