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#1
08-26-2023, 10:49 PM
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Yancer Mechanical TV Amp Schematic
At today's ETF Zoom call someone asked about schematics for Peter Yancers Mechanical TV Receiver and Camera amplifier schematics
Attached is the receiver schematic and associated parts list 
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#3
08-28-2023, 10:38 AM
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For us mechanical television dummies is there a build article somewhere, at least for the mechanism?
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#4
08-28-2023, 12:08 PM
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One DIY example: https://www.cool386.com/televisor/televisor.html
__________________
So many projects, so little time...
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#5
08-28-2023, 02:30 PM
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Peter Yanczer's book Mechanics of Television
https://www.earlytelevision.org/pdf/...television.pdf Peter Yanczer's Camera build instructions which go with the Mechanical Camera Amp described above https://www.earlytelevision.org/pdf/...camera_kit.pdf I sent a copy of the corresponding Mechanical Receiver build to ETF but it seems not to be on their site. I have the PDF that I scanned if anyone is interested. Go to the ETF Search page and search for Yanczer Peter Yanczer's web site was cloned to ETF after he passed. https://www.earlytelevision.org/search.html Last edited by rld-tv01; 08-28-2023 at 02:37 PM.
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#6
08-28-2023, 02:54 PM
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Another resource in UK. Narrow-bandwidth Television Association
http://www.nbtv.org/ The NBTV members sales page. I'm not sure of how current but it gives an idea of parts you might need and their associated prices. http://www.nbtv.wyenet.co.uk/The%20club%20Shop.pdf
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#7
08-28-2023, 04:03 PM
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Julian started this and I chimed in with my complete Yanczer kit. A fun time with this. The schematics are great and thanks. I also mentioned a Televisor science fair kit which I have for demonstration but currently not avaliable.This one uses the NBTV CD disc for images. It comes with a burned in test chart.
https://mindsetsonline.co.uk/shop/televisor/
__________________
Once you eliminate the impossible...whatever remains, no matter how improbable, must be the truth." Sherlock Holmes.
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#9
08-30-2023, 02:12 PM
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I found these 12 year old Nipkow Mechanical TV camera experiments on youtube
they're on troysvisualarts youtube This is just one guy among many I found on youtube building their own variation of a mechanical camera. I don't know Troy. Interesting and educational from camera build concepts viewpoint. Part 2 etc will start automatically after the previous video First is a camera build using a multiple CD plastic case painted black as the TV cabinet, an LDR for image sensor and a 35 mm camera lens. With LDR (Light Dependent Resistor) the resistance changes according to the intensity of light. Try mentioned having purchase a clear photo transistor which is more sensitive but didn't use it in parts 1-7. He may have use a photo transistor in the later camera/monitor in part 75 but I haven't watched all 75 videos. Camera build Part1 https://www.youtube.com/watch?v=j0Gn3VSr_wQ mechanical camera part 2 https://www.youtube.com/watch?v=baHgZXjUuv4 mechanical camera part 3 https://www.youtube.com/watch?v=BUYdSLGTljk mechanical camera part 4 https://www.youtube.com/watch?v=pxVphfOLTng mechanical camera part 5 https://www.youtube.com/watch?v=TTGGOSZVl1U mechanical camera part 6 https://www.youtube.com/watch?v=yguYWDtOrio mechanical camera part 7 https://www.youtube.com/watch?v=3xn8jQOEaX4 Jumping ahead a couple of years he experiments with a camera / monitor combination 32 line NBTV mechanical TV camera/monitor(Part 75) https://www.youtube.com/watch?v=Pw2nf29unKE Last edited by rld-tv01; 08-30-2023 at 02:18 PM.
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#10
08-30-2023, 04:17 PM
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The most difficult problem to solve in camera build is which optical device and type to use. If you search NBTV.org Forum area for S1223 you'll find some lengthly discussions on using Hamamatsu S1223-01 photodiode versus the BPW34.
A side note NBTV shopsales lists the S1223-01 at over 10 UK pounds plus shipping. You need to join NBTV for about $5 to purchase from them. Their shop is a source for a lot of components for building a mechanical camera and/or receiver. The S1223-01 photodiode is also available online at Newark for $10.73 with standard shipping for all orders under $150 at $9.99. You can find the BPW34 selling various locations on ebay for under $3 with free shipping. The photodiode used in Peter Yanczer's mechanical camera kit seems not be be available anywhere.
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#11
08-31-2023, 04:50 PM
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Another NBTV 32 line receiver build link with a lot of written discussion by LabGuysworld (Richard N. Diehl) on youtube. He goes into a lot of detail in the design and construction of a mechanical TV receiver. He includes build info for either B/W or color.
LabGuy's World: NBTV - 32 Line BIG Televisor Project https://labguysworld.com/NBTV_BigTelevisor_001.htm
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#12
09-25-2023, 05:08 PM
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I downloaded a software player from the NBTV website "freenbtv". The program supposedly takes many if not all formats based on dozens of parameters. I was able to select enough correct parameters to get a picture even though the picture kept moving on the screen and was rotated 90 degrees to the left. I took a screenshot of the parameters I chose for later analyses. I created the 24x24 video using a program called FFMPEG. It takes a sequence of jJPEG images and assembles the video in number order.
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#13
09-26-2023, 09:20 PM
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Some more tests image of Indian and image of letter "R". The Orange colored Indian is displayed on my Mechanical receiver (rotated). Bottom left FreeNBTV input file with box around selected area, Bottom right what FreeNBTV thinks the output will look like. My Mechanical receiver is not syncing. The disk spins momentarily stops then spins again. The frames are moving off frame horizontal as well as vertical. The "R" test came out upside down after rotating 270 degrees? The top of the "R" looks almost like the bottom of the "R". I need to try an animated video. NBTV has a demo video with flower petals rotating. I converted it to 24x24 and ran it on the Big Picture software but not yet on FreeNBTV and out to my Mechanical receiver.
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#15
10-01-2023, 12:05 AM
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To get FreeNBTV software
1- go to to website NBTV.ORG 2- select FORUM tab 3 -Top right search type in freenbtv 4 - you have over 100 hits, select 1st one 5 - go to page 4 6- about 8 threads down is a download link for version 4.1 Don't get freenbtv 4.0 2 threads up above this one This thread is: by smeezekitty » Thu Sep 01, 2022 6:28 pm The text states: The zip file contains both the source and a Windows installer as before (Windows 7 or newer required) Attachments freenbtv_0_41.zip (10.88 MiB) Downloaded 243 time Note: the download file is a zip file which can be extracted using MS Windows file explorer Last edited by rld-tv01; 10-01-2023 at 12:12 AM.
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Linear Mode
