Make a Tandy Color Computer cassette file player running CASDuino PCBWay Supports High Precision Advanced PCBs: https://www.pcbway.com/ Buy PCBs from PCBWay: https://www.pcbway.com/project/shareproject/CASDuino_and_similar_Compatible_Player_for_Computer_Cassettes_62e9595e.html Design files: https://github.com/GadgetReboot/SD_Tape_Player CASDuino Sketch: http://arduitape.blogspot.com/2020/08/new-castzxduino-firmware.html General project info: https://hobbyretro.com/en/mass-media/maxduino-2 TRS-80 BASIC commands: https://colorcomputerarchive.com/repo/Documents/Manuals/Hardware/Color%20Computer%202%20Quick%20Reference%20Card%20(Tandy).pdf If you'd like to support the channel, you can: Support me on Patreon: https://www.patreon.com/gadgetreboot Become a channel member (click the Join button): https://www.youtube.com/c/GadgetReboot Shop through my affiliate links (I may earn a small commission, costs you nothing)! Banggood https://www.banggood.com/custlink/3vKYLANH8N Aliexpress https://s.click.aliexpress.com/e/_AFeHwB Amazon.com https://www.amazon.com/?&_encoding=UTF8&tag=gadgetreboo05-20&linkCode=ur2&linkId=952875a3564e2204d1786f94b9e1a8d3&camp=1789&creative=9325 Amazon.ca https://www.amazon.ca/?&_encoding=UTF8&tag=gadgetreboot-20&linkCode=ur2&linkId=70fa82315ac48f03342938bd4fb93535&camp=15121&creative=330641 Videos are mirrored at LBRY/Odysee: https://odysee.com/@GadgetReboot:4 #ElectronicsCreators ... https://www.youtube.com/watch?v=crib53w42zo

I bought an Aoyue 888A hot air soldering rework station with soldering iron, adjustable temperature and air flow with digital displays, but I had to fix a few things before I could even test it out: The fuse was protecting neutral instead of hot, The soldering iron panel connector was recessed and had to be glued, Some parts had insufficient solder on the PCB, One component was detached from the PCB, Some leads needed to be clipped closer to the PCB Then I was able to test the work station. ... https://www.youtube.com/watch?v=HpoCAY_1sZU

Lots of electro-mechanical things from Banggood, and a few purchases from Amazon in today's mail. (Affiliate links) AC110V/220V to DC12V 15A 180W Switching Power Supply https://www.banggood.com/custlink/mKKRltwMlM HANPOSE 17HS3401-S T8x8 Nema 17 Lead Screw Stepper Motor https://www.banggood.com/custlink/mmGELFfk6K IP54 Linear Actuator 12V DC 100mm Stroke Electric Window Door Opener Linear Motor 30/15/9.5mm/s https://www.banggood.com/custlink/K33dO5TMe5 2 Channel 5V DC Relay Module Relay Drive Module Control Board https://www.banggood.com/custlink/mKmELF7U0I DANIU 10M 22AWG 72V PVC Insulated Wire 2pin Tinned Copper https://www.banggood.com/custlink/DmGyaV1Mg4 Machifit T8 Lead Screw 100/200/300/400/600mm 8mm Lead Screw with Anti-Backlash Nut https://www.banggood.com/custlink/vvKELtwzeQ 3D Printer T8 1/2/4/8/10/12mm Copper Lead Screw Nut For Stepper Motor Lead Screw 8mm Thread - 12mm https://www.banggood.com/custlink/DKmdaPwqgk Mounting Brackets for DC12V/24V Heavy Duty Linear Actuator Motor 2pcs https://www.banggood.com/custlink/3KmhL5fUeT Monitor Wall Mount with Articulating Arms, Swivels Rotates Tilts, Max VESA 100x100mm and 33 LBS Weight Loading MD2463 Amazon.com: https://amzn.to/3guT4Kb Amazon.ca: https://amzn.to/3tGrpd3 Hex Head Bolt Nut Hardware Fastener Assortment Kit 304 Stainless Steel (choose the thread size) Amazon.com: https://amzn.to/3n8ZXSy Amazon.ca: https://amzn.to/3gtABxz Equipment I regularly use (support the channel by shopping through these affiliate links - I may earn a small commission and it doesn't cost you extra): Mustool MT315 Digital Microscope https://www.banggood.com/custlink/KKvhiw1F6F 946C Solder Hot Plate 200mm x 200mm https://www.banggood.com/custlink/K3DyiNZy0l ANENG AN8008 True RMS Multimeter https://www.banggood.com/custlink/KKDh9267Fz Minleaf NPS3010W Power Supply https://www.banggood.com/custlink/KKKdtaNN9A FY6900 Dual Channel 60MHZ Signal Generator https://www.banggood.com/custlink/vGKR9r6RkR Siglent SDS1104X-E 100Mhz Digital Oscilloscope 4 Channels Standard decoder Amazon.com: https://amzn.to/36fH1ui Amazon.ca: https://amzn.to/36fNWUc Support me on Patreon: https://www.patreon.com/gadgetreboot LBRY/Odysee: https://odysee.com/@GadgetReboot:4 ... https://www.youtube.com/watch?v=YfqARB8cS4U

I forgot to add a bypass capacitor across the voltage rail of a DC bias supply and it caused my analog signal to bleed through to the output of the circuit when it was supposed to be "off". Using a combination of calculations and LTSPICE simulations I figured out a capacitor value that should work, then I tested it in circuit. I ran into another signal anomaly but that's for another day... Download LT SPICE https://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html SPICE simulation files for this video https://github.com/GadgetReboot/misc_file_bin/tree/master/2019-05/BypassCapSimulation Impedance calculator https://keisan.casio.com/exec/system/1258032649 Patreon: https://www.patreon.com/gadgetreboot Pinterest: https://www.pinterest.ca/GadgetReboot Twitter: @GadgetReboot https://twitter.com/gadgetreboot Background music from the Youtube music library: A Rising Wave by Jeremy Blake Ridge Racer by DivKid ... https://www.youtube.com/watch?v=KidsecXSRg0