Panasonic VP-8191A скачать в хорошем качестве

Panasonic VP-8191A

Workshop Project #47 - Panasonic VP-8191A From my pile of "reasonably priced eBay found" test gear: A Panasonic AM/FM radio test signal generator. It is the semi modern equivalent of the tube based solution from the last video. This one has a freely programmable frequency with AM or FM modulation on top. The output signal can be set to an almost invisible level, so the input antenna circuits of a device under test can be connected directly to the output. I tried measuring the output with my usual scope... nope. More noise on the connecting wire than there is signal. If you need to go that low, a fully shielded signal path is a must. The unit I have had nothing particular wrong with it, but I took the usual recapping approach. Maybe not necessary, maybe it was... especially the power supply caps had some visible liquid stains underneath which may or may not have been electrolyte... I do sleep much better now that it has the new caps! The buffer battery for the preset memory was absolutely up for a replacement though. No question about that. Other than these items, I took care of the case and made it nice and presentable again. Two casualties on the way: the power switch rod had a connector that broke - OpenSCAD to the rescue! - and the mains fuse holder was glued in place and didn't take kind to my attempts of removing it. But these are bog standard, so no problem either. 0:00 Intro / Overview / First look inside 2:40 First "Can" Removal / "Hard Lines" / Second "Can"... 3:40 First Peek / Output Attenuator / Power Supply 4:45 Front Panel Disassembly 6:02 Rear Panel and Whoops! / Washing Day! 7:55 Cover Plate Painting / Epoxy Glue Parts / OpenSCAD... 8:54 Inside: Attenuator, RF Generator 10:03 Inside: CPU and Counter / Recapping! 10:55 Recapping: PSU / Thermal Paste 13:05 Recapping Impressions: CPU, Control, RF Generator and Counter PCBs 14:09 Recapping and Cloing up: Attenuator / Keyboard Assembly 15:50 Front Panel Frame 16:45 Mounting: Handle, Case Frame, PSU Board 18:00 Mounting: Transformer, Rear Panel Components 20:13 Connecting Transformer / Adjusting PSU / Control PCB / Attenuator 21:29 Improvised Connections / First, Second and Third power up... 23:05 Finishing Assembly 24:52 New Battery / CPU "Can" Closing / Case Feet / Zip Ties 26:45 Overview...ish / Demo AM and FM 28:49 Connectivity Overview / Summary / Credits / Outtake Music (in order) My Train's A Comin' - Unicorn Heads Nine Lives - Unicorn Heads Wrong - Dan Henig Town of 24 Bars - Unicorn Heads Light Expanse - Unicorn Heads (YouTube Audio Library) You can support me with regular small donations on Patreon:   / atkelar   or by becoming a channel member! Or just occasional one time support via Ko-Fi: https://ko-fi.com/atkelar or using the "Super Thanks" feature! Thanks to everybody who signed up already!