Hobby Groups San Francisco

Meet to draw each other in San Francisco!

Take a turn modeling (nude) then just draw for the rest of the session. Looking forward to seeing old and new friends! Optional $10 donation to cover studio rent is suggested but not required. We will supply chairs but bring your own drawing materials, such as pencil, paper, and drawing board if you have one. (No oil paints, solvents, or fixative inside the building.) Open to all levels of experience.

Free Craft Night in Alameda!

Join me for a craft night at Alameda Brewing! We’ll be making fruity keychains and it’s going to be so fun! We’ll be crafting in the warehouse and the taproom! 💫🌟 My craft nights are free to join and I bring all of the supplies! All you have to do is show up :) I’ll be in the front of the warehouse at the welcome table when you arrive! Donations towards supplies are welcome but it isn’t required. My venmo is @JeeJing if you want to contribute! I can’t wait to craft together! See you soon!

Book Club Too - turn the page with us!

Session 3: Breadboarding the Op-Amp

## Session 3: Breadboarding the Op-Amp If the transistor is the building block of analog electronics, the **op-amp** is the Swiss Army knife. Op-amps show up everywhere in guitar pedals — as clean boosts, buffers, tone stacks, and the gain stages at the heart of overdrive circuits. The Tube Screamer, the RAT, the LM308-based fuzz variants — all built around op-amps. In this session we'll get hands-on with the op-amp on a breadboard and learn how to put it to work. We'll cover: * **What an op-amp is** — and how it differs from a transistor amplifier * **Biasing** — setting up the op-amp to work with a single-supply voltage, like a 9V battery * **Setting the gain** — using feedback resistors to dial in exactly how much amplification you want * **Building a boost or buffer circuit** — and hearing the difference it makes No prior experience with op-amps needed. If you've been following the series, you already have all the foundation you need — but newcomers are welcome too. Already working on a pedal project? Bring it! Whether you have questions, need a second pair of eyes, or just want to solder alongside others, you're welcome to work on your own build.

Sunday Coffee & Crafting

**Bring your own seat or picnic blanket as cafe seating is very limited!** Come join us for our bi-weekly Sunday Coffee & Crafting for some cafe fare and crafting social time! As always, all fiber artists are welcome. *** **About the location:** The Hidden Cafe is a cozy cafe located in the Strawberry Creek Park in Berkeley. On weekends they also host pop-up food options. **How to Get There:** BART: 10 minute walk from North Berkeley station Bus: 51B, 800 Car: Parking for Strawberry Creek Park is available, along with on-street parking nearby. Bike: For those north (in Albany or El Cerrito) you can also take the bike path directly to the park!

Literary Devices: Writers and Hackers for Noisebridge!

San Francisco Writers Workshop collaborates with our hacker friends to raise funds for everyone's favorite local makerspace: Noisebridge! Several of our best authors will produce stories/poems/word-based constructs. Each will share their literary product with a hacker, who will respond with a device/app/gadget/doohickey inspired by the writing. On the night of the event, audience members will vote for the device that best complements the assigned writer's piece. The winning hacker will receive a prize of dubious value! Expect delicious snackies, and other fun additions: in the past we've included a fun raffle!

Tiki Treats

Join us to chat and enjoy snacks and drinks!

FREE Electronics Night @ Ace Makerspace

Join others in our well-appointed electronics lab for a hosted, free-style night of electronics exploration and tinkering. **Class type:** Exposure **Class Level:** All **Class Length:** 2 Hours **Location:** Upstairs Suite #214, Electronics Lab **Prerequisites:** None **Age:** 10+ **At Open Lab you can:** * Get help with your electronics projects including program microcontrollers * Learn a new skill like how to solder or how to use tools like Oscilloscopes * Get help getting started with electronics for repair, special projects, art, or cosplay * Access tools and supplies to repair electronics in small appliances and electronic devices * Your hosts have a variety of skills and access to tons of resources all in a well-appointed electronics lab set up for social distancing. New Guests must [sign up for a FREE Guest Account and sign their liability waiver](https://www.acemakerspace.org/product/guest-account/) before this event starts. Add the FREE account on the Ace makerspace website check out or sign up here → [FREE Guest Account](https://www.acemakerspace.org/product/guest-account/) Ace Makerspace is a 501(c)(3) non-­profit member-supported organization. All proceeds support Ace Makerspace and help us serve over 1200 people a year with innovative programs, equitable access to makerspace resources, and more creative, self-reliant communities in Oakland. YOU MUST PURCHASE OR RSVP YOUR TICKETS THROUGH THE ACE MAKERSPACE WEBSITE: [Electronics Night – Ace Makerspace](https://www.acemakerspace.org/event/electronics-night-5-14-25/)

Stitch & Sip

Bring your knitting, crochet, embroidery, cross-stitch, or any project you are working on. 
If you are an absolute beginner and would like to get started, I suggest picking up a kit to get you started on a project.

Dinner & Movie Outing

Join us for dinner and a movie outing to see Scary Movie at the 5:00pm showing!

Mushroom Monday: Open Labs

**Join Counter Culture Labs for an exciting journey into the realm mycology, DIYbio, and citizen science.** Don't miss this opportunity to unleash your creativity and explore fungi while connecting with like-minded individuals passionate about creating a better world through science. Let's come together, for an afternoon of learning, collaboration, and inspiration. Connect with the host for more detailed information for each session, workshop content cycles repeat quarterly. Wild mushroom forays are seasonal and dependant on weather events. **Exploring the Kingdom of Fungi: Adventures in Mushroom Science** Get ready to embark on a fantastic journey through the enchanting world of mushrooms. Counter Culture Labs proudly presents an immersive open laboratory focused on the wonders of fungi and their important role in our everyday lives. Join us for an engaging workshop where we will uncover the secrets of mycology, from the science behind fungi to their creative applications. Discover how mushrooms can revolutionize our environment, improve health, and promote sustainable practices. This event is perfect for science educators, curious minds, and anyone interested in the magical realm of mycology. Connect with fellow enthusiasts, experiment with mushroom cultivation, and explore the captivating field of bioinformatics. Whether you're a beginner or a seasoned fungi aficionado, this event offers something for everyone. Join us for an afternoon of learning, sharing, and discovering the extraordinary wonders hidden within the world of mushrooms. Can't attend but still want to get in touch? You can reach us via our [contact form](https://forms.gle/Mh3xiGrKv7Kezccw7)!

Lawn Bocce & Treat Potluck

Join us at the Crolls Garden Picnic Area for a treat potluck and some lawn bocce ball! It's an easy game to pick up, so don't worry if you haven't played before. Hope to see you there!