Diabolical 8 Track Experiment #1 Mark5W8Comer 2023-01-07 | Speed accuracy is NOT one of the hallmarks of the 8-Track cartridge medium. Although some "tweaking" can be done, is it worth the effort? I start to explore this facet with this video...
Realistic TR 882 Mark5W8Comer 2023-01-05 | Of all things- an 8Track recorder? Yup, I bought one to play around with, and plan a couple of diabolical experiments to perform with it...
Funeral March of a Marionette Mark5W8Comer 2022-11-04 | Fans of "Alfred Hitchcock Presents" should recognize this!
Trimming oversized platter felt Mark5W8Comer 2022-10-28 | Found some old video clips that I never used...The platter felt I bought for the Grafonola was a little bit oversized- but it turned out to be an advantage!
Columbia #6 rebuild, part two Mark5W8Comer 2022-10-28 | Part two of the rebuild job with a demonstration of the change in sound quality at the end (hopefully there's no copyright issue...). SUCCESS! A clumsy job completed!
Columbia #6 rebuild, part one Mark5W8Comer 2022-10-28 | Rebuilding a Columbia #6 reproducer. I couldn't get the reproducer off from the tonearm, so the job was a little clumsy. The job was successful at the end. Part one details the teardown of the old gaskets and diaphragm.
Victor 4 ready for some spring work. Mark5W8Comer 2022-10-19 | Victor model 4 from 1914, needs some work on the spring to make it run evenly. Ready to send off to a professional!
WOPL 2.15: Final assembly (revised). Mark5W8Comer 2022-01-03 | This is an easy one- just screw everything back together! There is a little trick you'll need to perform- the new White Oak chassis is a bit larger than the original, so you'll need to center the sub panel to make sure the front panel switches align correctly. Original video from March 20, 2021, revised January 3, 2022.
211016 Cassette tape flanging Mark5W8Comer 2021-10-16 | An issue I found with a NOS audio cassette- hopefully this is a rare occurrence and doesn't happen with major branded tapes.
WOPL 2.13.1: An input jack error fixed! Mark5W8Comer 2021-10-07 | This is an unnecessary video, posted for the halibut. There is a lesson about paying attention to schematics and watching the color codes on your resistors. I thought the problem was much worse, but White Oak Audio always has a lifeline- and the problem was simple and easy to fix.
WOPL 2.14.2: Calibrate the Cylon meters Mark5W8Comer 2021-10-05 | After your LED displays are built and installed, they will need to be calibrated for correct operation.
Victor Exhibition Reproducer Rebuild Mark5W8Comer 2021-04-07 | I never had the original soundbox for this Victor IV, so I found a wrecked one on ebay and rebuilt it from parts also found on ebay. Not a complicated job, but a "fiddly" one that required some patience. Another video made to put insomniacs to sleep!
WOPL 2.14.1: Installing the Cylon meters Mark5W8Comer 2021-03-19 | Here, I install the front panel power display meters. We PL geeks call them "Cylon" meters after the roving red eyes of the Cylons in the original "Battlestar Galactica" television show. I hit a roadblock in the calibration process, so part 14.2 will detail that procedure.
Yamaha Disklavier Mark5W8Comer 2020-12-20 | That sneaky sound tech is at it again...Between church services, I loaded my favorite Beethoven piano sonata. This piano amazes me, I'm in love with it!I wanted to edit this to be shorter, but... IT'S BEETHOVEN, MAN! HOW CAN YA CUT THIS SHORT?(Am I gonna get a copyright hit for this?)
Brunswick 105 restoration questions Mark5W8Comer 2020-12-14 | Some questions for experts concerning restoration of a Brunswick model 105.
Brunswick model 105 Mark5W8Comer 2020-12-08 | A Brunswick phonograph! Another project for me. You don't see very many of these, and they're probably one of the most unique phonographs ever produced.
Grafonola Assembled! Mark5W8Comer 2020-11-10 | The motor came in the mail today (Nov. 10th) and I anxiously assembled the phonograph! Works marvelously well, I couldn't be more pleased!
Grafonola Cabinet Cleanup Mark5W8Comer 2020-11-06 | Cleanup of the Columbia Grafonola cabinet. I took this as far as I'm able without a complete refinish, still a few "bite marks" and defects in the wood, but this baby is approaching 100 years old, so actually she's not in bad shape. The only part remaining to clean up is the disc platter...
Victor VV-IV Overview Mark5W8Comer 2020-11-05 | A 106 year- old Victor VV-IV, and it still runs! Some work is needed on the clockwork, the cabinet needs some love, and the platter needs new felt.
Grafonola Type E-2 Overview Mark5W8Comer 2020-10-03 | A Columbia Grafonola Type E-2 that I rescued from someone who owed me $20 back in 1995. I gave this to my nephew and his wife, but now they've moved to Virginia and couldn't take it with them. It's in my possession now, and I'm gonna git this baby FIXED!
Photogram Project part 1: The Idea Mark5W8Comer 2020-10-01 | Photograms- cameraless photography! This technique was used by Man Ray, Laszlo Moholy-Nagy, Imogen Cunningham, and even Pablo Picasso, but as far as I know, I'm the first to do it with 16mm color movie film. This is an experiment I had in mind for maybe 35 years, and now that I have a source for film stock, I'm able to do it!
WOPL 2.13: Input Jacks and Power Switch Mark5W8Comer 2020-09-22 | Running the coax from the input jacks to the sensitivity controls and then on to the driver circuit- a few details that shouldn't be overlooked! The power switch is connected, and there's some tricks to that, too!
WOPL 2.12: Install & test Direct Current Protection circuit Mark5W8Comer 2020-06-25 | Speaker protection circuit installed and tested, a different use for the Audacity audio editing application.
WOPL 2.11: Set bias and check DC offset. Mark5W8Comer 2020-06-09 | The "idle state" of the amplifier is adjusted here, and the DC offset of the output stages are checked to be as close to 0Vdc as possible.
WOPL 2.10.2 DBT startup- no variac Mark5W8Comer 2020-06-09 | Another extension to part 10. There should have been one more startup without the variac in the power chain.
WOPL 2.10.1: Driver circuit and backplane repair. Mark5W8Comer 2020-05-22 | I encountered a problem with the startup procedure. This video covers the necessary repairs to proceed with the amplifier project.
WOPL 2.10: Powerup procedure, driver installation, output transistor installation. Mark5W8Comer 2020-05-22 | Initial power distribution tests, installation of the driver circuit, and addition of the output stage transistors are covered in this video. There was a failure in the process, this will be covered in the next video, but the problem has been corrected to complete this segment.
200428 Crows Mark5W8Comer 2020-04-28 | Crows? Ravens? Beautiful birds, I'd love to have one as a pet. As much as I've tried to attract them, I never expected them to find the cat food on the back porch. Cardinals come as well, and at night I get Opossums and Raccoons.
200424 Time-Bomb Soda Mark5W8Comer 2020-04-24 | Mentos in ice cubes don't make the soft drink erupt, contrary to a FaceBook meme that was recently posted. Well, so much for experimentation, and honestly, I'm disappointed!
WOPL 2.9: Capacitors and backplanes Mark5W8Comer 2020-04-21 | Power supply capacitors and backplanes installed, additional wiring performed to provide power to the output stage of the amplifier. Power supply comes next, along with addition of the output transistors.
WOPL 2.8: Power Wiring Mark5W8Comer 2020-03-25 | Detailing the internal power wiring for the Phase Linear 700 Series Two audio amplifier. A little trick on the rectifier, another trick on the transformer mounting bolts, and internal wiring for power distribution to the backplanes.
Its Dakota Time! Mark5W8Comer 2020-03-09 | March 9, 2020. I wanted to buy tires, but guess what...Since it's gonna be a big hit on my Visa card, gonna buy the tires and headlights anyway, along with an oil filter and oil as well.Well, that's life, right?
LineTrackTable Mark5W8Comer 2020-03-08 | The marvelous Pioneer PL-L1000 Linear Tracking Turntable! Also sold in the USA as the Phase Linear 8000 Series II. A time- lapse of the arm tracking across the face of a white LP.
Mikes 1000 0 Mark5W8Comer 2019-09-23 | Mike's Model 1000 Autocorrelator. I don't feel confident that I can fix this one...
Mikes 400 3.1 Mark5W8Comer 2019-09-21 | "But wait! There's More!" Connecting the front panel and light kit, closing the cabinet, and packing her up. A few more details to talk about, this baby's done!
Mikes 400 3 Mark5W8Comer 2019-09-20 | Electronically done, build complete except for the faceplate and output meters. First burn-in test.
Mikes 400 2 Mark5W8Comer 2019-09-10 | A further update on the classic Phase Linear 400 rebuild project.
Mikes 400 1 Mark5W8Comer 2019-09-03 | Second update on Mike's PL400 rebuild.This is going faster than I expected. I have to go shopping for longer transformer bolts and a 16g power cord, but these aren't pressing issues for the moment. I still haven't opened the AutoCorrelator yet...
190810 Sonic Holography Demo Mark5W8Comer 2019-08-10 | A demonstration of Sonic Holography from Carver audio.
WOPL 2.7: Gutting your old chassis Mark5W8Comer 2019-07-23 | When removing your old circuits in preparation for the rebuild, some parts are saved, many aren't. An (im)perfectly good amp gets destroyed!
WOPL 2.6: Other stuff you will need... Mark5W8Comer 2019-06-30 | There's a little more shopping to do before starting the rebuild of this amplifier. I think I've covered everything and included all the part numbers to make this task easier. ALSO- White Oak Audio also makes new upgraded cabinets for the Phase Linear Model 700 amplifiers!
WOPL 2.5- The Cylon VU meter kits Mark5W8Comer 2019-06-28 | The last two circuits from White Oak Audio! These are the front panel output display meters. After the purchase of a few more things, the reconstruction can begin.
Tangerine iMac! Mark5W8Comer 2019-04-05 | In desperate need to recover an old file from a CD, I found that an old iMac still worked- and had an interesting software package on it! Refreshing to use a legacy Mac OS after using OS X for a number of years.Specs for this iMac: 256MB RAM, 6GB HD, PPC G3 @ 333MHz, Mac OS 9.2.Video: 1024 x 768 at 75Hz, 24- bit color (16.7 million colors).
WOPL 2.4- The Control Circuit Mark5W8Comer 2019-03-27 | The control circuit for the Phase Linear 400/700 has been built! Also known as the driver board. This prepares the input signal for the output stage of the amplifier. I hope this helps intrepid newbies gain confidence to undertake electronic projects
190324 Zero Ω Resistor- WEIRD! Mark5W8Comer 2019-03-24 | Very strange resistor-that-isn't-a-resistor!
WOPL 2.3: DCP Circuit Mark5W8Comer 2018-10-18 | The DC protection circuit for the PL 700 is different from the one for the PL 400 in a few important aspects. This circuit board was pre- assembled, but required that I remove a few components. The function of the Zobel (Zoebel?) network is briefly discussed, as well as the difference between resistance and impedance in reference to loudspeaker systems.
WOPL 2.2: Backplane Circuit Assembly Mark5W8Comer 2018-08-24 | Assembling the first circuit boards for the Phase Linear 700 Series Two upgrade. The backplane circuit boards are actually simple to assemble, but when it comes to the point of getting them into the chassis, it becomes more challenging.
