Re: Tek TDS684A hacks and screen swap advice please?
HI and thanks for all the links and great advice. I will archive the information as when I went to look at the instrument is was seriously corroded by the leaky capacitors and I decided it was not for
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Dave B
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#208619
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Re: Replacement Feet for Tektronix 465, 465B, 466, 468, 475 and 475A Oscilloscopes
Tim¡¯s original post is from 13 years ago, back on the Yahoo group list. I wonder if he is even still subscribed to the new groups.io list. I found several sellers of reproduction feet on eBay. I
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Steve Byan
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#208618
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Re: Replacement Feet for Tektronix 465, 465B, 466, 468, 475 and 475A Oscilloscopes
I, too, am interested in buying a set for my 465. Arne
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Arne Buck
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#208617
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Re: Replacement Feet for Tektronix 465, 465B, 466, 468, 475 and 475A Oscilloscopes
Hi Tim, so how much are you looking for a set? Thanks James
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James55
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#208616
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WTB: CRT bezel for Tek 606
Hi, I'm in Toronto Canada but would probably pay a reasonable price plus shipping from anywhere, if someone has a spare or parted out intact plastic bezel for a Tektronix 606 XY. One of mine took a
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toby@...
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#208615
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Re: VintageTEK demo boards are back
Ooh nice, been waiting a long time. Too bad ebay are charging 3000yen shipping to Japan for a 5000yen item... I'll have to keep dreaming... Jared
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Jared Cabot
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#208614
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Re: 2246 Display Issues
=== Mike, In that case it is normal and expected. When trigger mode is "Auto Level" with no input signal trigger range is set to peak to peak amplitude of input noise and triggers randomly. Ozan
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Ozan
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#208612
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Re: 2246 Display Issues
Ozan: The green indicator flicker I mention is very subtle. This flicker seems to go away when trigger mode is set to "auto", regardless of position of trigger level control and with no signal input.
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saturn.v2000@...
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#208611
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Re: VintageTEK demo boards are back
Just thinking out loud: Create a SW app that processes a design file (i.e. Autocad, maybe a monochrome BMP ??) into a format that is fed to the ATMega (via a UART port, or USB). Then anyone could
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saipan59 (Pete)
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#208610
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Re: 2246 Display Issues
Thanks George, I'll make a note of that. - Mike, de W9MAS (USA)
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saturn.v2000@...
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#208609
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VintageTEK demo boards are back
Demo boards that display the Tektronix logo and other images on your analog scopes in XY mode are once again available from the museum! https://www.ebay.com/itm/116498624308 -Thomas
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Mr. Fang
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#208608
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Re: 2246 Display Issues
If trigger mode is in "Auto Level" does moving the tigger mode to "Auto" and changing trigger level away from zero stop flickering? Ozan
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Ozan
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#208607
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Re: 2246 Display Issues
Hi With reference to the display fading only. You are probably seeing a little understood / acknowledged problem with the high value resistors around the CRT. They normally go high in value with
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george edmonds
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#208606
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Re: 2246 Display Issues
Thanks for the reply. The "flicker" seems to go away with readouts turned off (clear display button). Oddly, the flicker I'm seeing on the green button indicators goes away with signal input (using
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saturn.v2000@...
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#208605
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Re: 2246 Display Issues
Mike, The display flicker might be due to the on-screen readouts stealing the beam at times. Does the flicker go away if you turn the readouts off? --John Gord
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John Gord
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#208604
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2246 Display Issues
Hi All Have two issues with my Tek 2246 scope display. Looking for common faults before digging in. 1) Display brightness fades after approx half hour after power on. Display geometry is fine, it just
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saturn.v2000@...
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#208603
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Re: Tektronix 465B horizontal display issue, and a fix
Thanks Mark! This is great info and I'm sure it will be very helpful to folks in the future. It is the kind of stuff that is above my pay grade. I figured there was SOMETHING newer and better, but I'm
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Keith
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#208602
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Re: Tektronix 465B horizontal display issue, and a fix
Keith, Thanks for the help. I am sure ones here will need this information. From the specs of the CA3046 at 120mc while the specs also say the range is 550mc, a PN3568 looks like a good replacement at
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Mark Vincent
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#208601
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Tektronix 465B horizontal display issue, and a fix
I'll try to keep this brief, but this is an end to end diagnosis and repair description. Maybe this will help someone in the future who has a 465B or similar scope with a similar problem? Experienced
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Keith
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#208600
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Re: Tektronix 2213A CRT question
The info on TekWiki is obviously wrong. 154-0838-00 was used only 2213 and 2215. 154-0861-00 was used in 2213A, 2215A, 2235 and 2236. Check out this old post on the same subject:
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zenith5106
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#208599
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