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Follow Dave as he tracks down an elusive intermittent thermal fault in a HP1740A analog oscilloscope. Can you figure out the culprit before Dave does? Part 1 HERE Forum HERE Warranty VOID T-Shirt Podcast: Download

Dave saved this classic from the dumpster, a HP 1740A 100MHz dual channel analog oscillocope from the mid 1970’s. It wasn’t supposed to be working so this is a look at the problem, a mini teardown, and some basic PSU troubleshooting. Update: Even after 4 hours it still doesn’t fail …

More Mailbag Forum HERE SPOLIERS: Fluke 8060A Multimeter Amp Hour episode with the designer of the 8060A Precision Digital Adjustable DC Voltage Reference Vacuum desoldering pump teardown. Adelaide Hackerspace Apple Macintosh Powerbook 165c Turkish Delight Altronics Swag – a spinning magnet levitating thingo Podcast: Download

The next step for Ahmed Mohamed How to design your own digital clock from 4000 series CMOS chips. Dave reverse engineers a DIY clock he built back in the 1980’s as a teenager (he lost the schematics, twice!) Before the days of microcontrollers, cheap PCB’s, and internet mail order parts, …

Teardown of the new Siglent 1000X Series Oscilloscope How to remove warranty void security stickers VIDEO Datasheets: MachXO FPGA Logic Level Translation Synchronous Pipeline Burst SRAM Micron DDR3 memory HMCAD1511 1Gsps ADC AD8370 Variable Gain Amplifier LP3878 Low Noise Regulator ADF4360 Frequency Synthesiser Blackfin DSP Processor Madman Muntz Podcast: Download