In this episode of ShopTalk:Why not check refa cap first? - Dave explains not always checking capacitors before powering up.Detecting electrical noise? - Tips on spotting interference using a TV or ham radio feedback.Learning about middle-aged hardware failures? - Dave suggests a video on 2000s capacitor issues.Variac use and capacitor failure? - Depends on capacitor age and voltage rating.Replacing refa caps? - Modern aluminum capacitors are recommended.Electrolytic caps as substitutes? - Not suitable, modern alternatives preferred.Other retro gear failure points? - Electrolytic capacitors degrade over time.Selenium diode failure experience? - Dave hasn’t toasted one but recalls smoking a diode.Capacitor refresh procedure? - Electrolytic caps can be reformed with gradual voltage.AI and NASA coding standards? - AI could follow coding rules if given restrictions.Telling a child about autism? - Dave shares timing depends on when it impacts them.Starting vintage electronics repair? - Suggests Commodore 64s and Adrian’s Digital Basement.Pinning apps in Windows 11? - Likely low demand or technical limits, workarounds exist.Hacker’s diet by John Walker? - Dave hasn’t heard of it.DECUS tapes ownership? - Might have some among TK50 tapes, unconfirmed.Commodore 64 load commands? - Explains ,8 vs ,8,1 for memory loading.LCD board on bench? - A mesmerizer running night driver software.AI controlling Tempest knob? - Direct memory input mimics spinner movement.Spiral lamp model? - Artica Swirl, available at Home Depot.Smart alec shirt source? - Common geek shirts found on Amazon or GeeksOutfit.com.

Why did Dave’s kids get hassled at the Canadian border while picking up a PDP-11?How does Dave plan to train an AI to beat his world record in Tempest?What challenges does Dave face simulating the Tempest encoder wheel for the AI?Why does Dave give the AI only the visual data a human player would see, not internal game states?How does the AI Tempest model improve its performance frame-by-frame?What retro games can the PDP-11 run, like Zork or Star Trek, and can Dave showcase them?Why does Dave salute at the intro of his episodes, despite not being military?How did Dave expand his garage into a massive nine-car shop?Why didn’t Dave use his car hoist to move the PDP-11 off its pallet?Can the PDP-11 run modern languages like C, and how did Dave add a C compiler?What’s the history behind Dave booting BSD Unix on the PDP-11/34?How does the power efficiency of a PDP-11 compare to modern systems like a Raspberry Pi?What’s Dave’s favorite keyboard, and why does he love the DOS keyboard despite its flaws?Why does Dave miss working at Microsoft and running his own company?How does Dave justify not coding to NASA’s strict programming standards for his projects?

Vintage computing (PDP systems): Dave discusses booting his PDP 1134 with RK05 drives and running 2.9 BSD Unix, plus formatting a SCSI drive on his PDP 1173.AI for technical problem-solving: Dave compares using ChatGPT and Grok to solve technical issues, favoring Grok’s efficiency with provided context.Machine learning for game playing: Dave’s project to build an AI to play Tempest using reinforcement learning and Deep Q Networks (DQN).Windows terminal (Warp) features: Discussion of Warp’s features like AI assistance and command completion, compared to traditional Windows terminals.Sponsorship and content ethics: Dave explains his selective approach to sponsorships, only promoting products he uses and likes, and transparency about affiliate links.OS stability and hardware compatibility: Reflections on Windows NT’s stability with well-defined hardware and blue screen issues with third-party drivers.System monitoring tools: Dave mentions using B-top and B-P-Y-top for system monitoring in his Warp demo.Command-line interfaces and shells: Covers experiences with SH, KSH, CSH, Bash, and PowerShell, plus Warp’s shell-like features.Terminal customization: Dave uses the Glass TTY VT220 font for a retro look in Warp.Privacy in cloud applications: Addresses concerns about Warp’s account requirements and data privacy.Custom Linux kernel building: Dave explains compiling a Linux kernel for specific features or debugging, contrasting it with the closed-source Windows kernel.Prime sieves and large primes: Discussion on handling large primes in a sieve algorithm, limited by memory constraints.Hypervisors and virtualization: Dave uses Hyper-V on Windows and Proxmox for device pass-through on other systems.Keyboard preferences: Dave uses a Corsair K70 with Cherry MX Blue switches in the shop.MS-DOS slash conventions: Explains why MS-DOS uses backslashes for paths to distinguish from forward slashes in command options.Hard drive size marketing: Discusses why manufacturers use base-10 (billions of bytes) while OSes use base-2 (gibibytes), affecting perceived sizes.Personal anecdotes and humor: Includes lighthearted moments like Dave’s beer label blackout after a sponsorship rejection and rare cursing off-show.

• Mirror Flipping: Mirrors flip depth (Z), not left-right or up-down.
• Physics Girl: Shoutout to Diana Cowan’s mirror video.
• Light Speed: Headlights work, but time dilation shifts perception.
• Philosophy Teaser: Half-distance-to-wall paradox.
• Commodore Printers: Likely just logic, not smart systems.
• Windows Handles: OS references; millions signal leaks.
• Full-Height Drives: New term, tied to VAX formatting.
• RISC-V: Dave’s uninterested due to performance.
• Windows Porting: Easy to RISC-V, historically portable.
• Interviews: More planned, maybe Bill Gates.
• Dave’s Start: TRS-80 to Microsoft via emails.
• Task Manager: Ctrl-Shift-Esc, hidden admin shell.
• Windows Milestones: 1, 3.1, 95, NT4, XP, 11.
• ESP32 Setup: Flash Hello World via USB.
• OS Learning: Study Minix textbook.
• Windows Kernel: Manages hardware in privileged mode.
• 32 vs. 64-bit: 64-bit handles more memory.
• Career Tip: Specialize to outpace AI.
• Favorite Tech: iPhone, watch, Thunderbolt hub.
• Newton: Top pick for his genius feats.

• The Mirror Reversal Mystery
• Elon Musk's Family Background
• The Millionth Customer Barbecue Incident
• Decoding "LPT"
• Git Usage Preferences
• Computing History: Commodore 64 and 1541 Floppy Drive
• ESP8266 Evolution
• Real-Time Systems Programming
• Task Manager Priority Behavior
• Handling Incorrect Information in Large Language Models (LLMs)
• Quantum Computing and Qubits
• Advice on Working for Startups
• Viewer Interest in Shop Tours
• Podcast’s Relaxed Atmosphere
• Encouraging Viewer Engagement
• Saskatchewan Connections
• Cotillion Confusion
• Hard Drive Setup for PDP-11s
• Tonto and Lone Ranger Joke
• Subscription Pitch

"You helped work on Windows? Are you sure you're a tech expert?""What is the firing order on my 351 Windsor and my '69 Mustangs?""What do you know about quantum computers—and how do qubits really work?""Do you actually know all the Git/CLI commands, or is that just a myth?""Have you ever seen Uncle Bob (Robert Martin) refactor code—and could you show us how?""Can you create a video using Wireshark to check if DeepSeek phones home, and what about LLM accuracy?""Would a Dave’s Garage stubby cooler be as epic in real life as it sounds?""Why does a disk drive have an odd number of heads—is one dedicated as a servo platter?""Other than eBay, what are your secret sources for PDP parts?""What happened to the Porsche 959 Bill Gates?""Can you have C++ without C—and what does that say about programming’s roots?""How do you distill a massive AI model into a smaller, niche one—and when will we see them?""Does Microsoft still support legacy OS’s like Windows 1, 2, 3, or even 9?""What are the coolest, most practical use cases for AI from your super dev perspective?""Is it possible to build an offline AI system on a Jetson or Nano for Windows tech support?""What’s your take on the new ESP32P4 chip—will it light up more LEDs than ever?""How should computer science professors adapt to better prepare students for real-world tech?""What do you really think about voice assistants like Siri and Alexa—are they any good?""Can you feed local data into a GPT model offline without compromising functionality?""What’s a DeepSeek AI dongle—and does it really simplify filtering questions?"

Dave and Glen answer the best of more than 8000 comments about the Deepseek R1 episode!

In this jam-packed episode of Shop Talk, Dave and Glen dive into a mix of retro tech nostalgia, hardware troubleshooting, and an exciting giveaway! Here's the rundown:

Join Dave and Glen in the latest episode of Dave's Garage for an electrifying mix of retro computing, cutting-edge AI, and essential cybersecurity insights! This week, they’re diving deep into the legendary PDP-11, sharing the thrilling journey of resurrecting a 2GB hard drive and booting BSD for the first time. Whether you’re a vintage tech enthusiast or a modern AI aficionado, there’s something here for everyone.

Dave and Glen discuss the new Google Chrome extension exploits in 35+ different Chrome Extensions affecting millions of PC users.