tekscopegroup@... wrote on 11/30/2020 12:28 PM: > I recall walking Canal Street in lower Manhattan in 1976 during a vacation trip with my parents. <snip> Hello-- Sometime in the early 1960 , my roomma

The following photos have been uploaded to the 70ies electronics... electromechanical computer ? album of the TekScopes@groups.io group. P1200918 (07.07.2019 - 12h43).jpg P1200919 (07.07.2019 - 12h44)

Harvey White wrote... "See if you can find the SF novel "Venus Equilateral" by George O. Smith. Pay attention to the electronics and computing part if you would, which shows (amongst other things) mec

These are likely to be leaky from C to E as a diode while checking normal as an NPN. An hfe meter will show way off hfe on the leaky ones. If they have round leads (tarnished above the socket), they a

Hello, I live about 2 miles from Fair radio. I know the owner Phil, not a close friend though. I am not sure what will happen when he retires.... I do not know if the show room is open to the public a

All: I am working on a 468 Scope. All voltages are within parameters both the main and digital power supply sections. I have tested the analog section, bypassing the Digital section. Analog seems to w

Dear all, I have read somewhere on this forum what is necessary to do in order to store the calibration constants without finishing all the calibration steps. However I have spent more that an hour se

The following photos have been uploaded to the 70ies electronics... electromechanical computer ? album of the TekScopes@groups.io group. P1330005 (29.11.2020 - 21h09).jpg P1330006 (29.11.2020 - 21h10)

Among my menagerie is a recently acquired 2215A which I had to perform minor repair work on, but otherwise seems to be in fine condition. I would like to do some adjustment on channel 1, whose trace j

I'm still waiting for one component to replace the blown transistors in my sick 475A, so I decided to investigate the similarities/differences between the 475A and a 475 parts scope. The first thing I

Hello Groupe I have this 492A spectrum analyzer and I have found that the input attenuator (0-60DB) i defect.... is it still possible to get spare parts for this attenuator or is there a better way to

Just saw this on ebay in the UK : https://www.ebay.co.uk/itm/Tektronix-Type-545-Oscilloscope-Vintage-Antique-Collectors/353290325095?hash=item5241be8c67:g:-GYAAOSwBPZfvDOx Looks like it's been stored

My apologies. I sure my absence the past 4 days has caused some concern. I have been sick. Tuesday morning I was in bed with what I guess was a stomach flu. The next two days alternated between bed re

Hi folks, I acquired abandoned abused lonely 485 for equivalent of $40. I couldn't leave her there. When the time base is 10uS or shorter it works but it's rather blurred, very far from nice sharp tra

Hi everyone, I'm searching for the above in good condition - if you have one for sale please let me know. I'm based in Switzerland, so prefer Europe but am also open to paying postage from US if I can

Hi, This is Tom Dodge, and I am posting this topic again because I didn't post it right before. I have three Tektronix scopes. I have a Tektronix 533 that doesn't work. When I turn it on, it does not

Hi All: I am getting one. My question is... what do I (What can I) do with it?...I know it is/was intended for monitoring the NTSC television broadcast signal. I do have a pdf of the user/service manu

I have a copy of The XYZs of Oscilloscopes that appears to have come with an early 2213, but I have seen PDFs with the same title with much later copyright dates, and have seen similar for sale online

Have been searching but have not found the latest version of Firmware for TDS540A. Does anyone have an idea? Thank You Luca

This is a continuation of a serious 7L5 restoration started last year. Here's where I left off: https://groups.io/g/TekScopes/topic/31248178?p=Created,,,20,2,0,0::recentpostdate%2Fsticky,,,20,2,0,3124