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kim.herron@...> wrote: My 2467 has the counter timer option, which'll give you an on-screen frequency readout if you know how to ask for it. You have to know how to navigate the annoying

What were the voltages at pin 15 and pin 4? These voltages are so off (except pin 5!) my concern is either you are not looking at the right nodes or the voltmeter was in a different mode. Pin 1

I'm using the PDFs from the Tek Wiki for now. Prefer hard copy. I went though all of the PDFs for the 2236 on Tek Wiki yesterday to find the right one to recommend to the eBay seller for printing. He

On Fri, Jan 22, 2021 at 02:40 PM, Ozan wrote: Interleaved > > > > Base of Q770 reads +6.090 VDC, while the base of Q780 reads +6.081 VDC > > However, the cathode of VR764 reads high a +5.135

Jose, Those traces look exactly as you would expect for a normal sweep (except for the dotted line during the retrace). Are you sure the 485 is in X-Y mode with Ch1 and Ch2 inputs disconnected?

Hi, is this the board you refer to: /g/TekScopes/photo/259372/0?p=Created,,,20,2,0,0 where is that board located? what number of board is it?

I've cleaned and adjusted these - and they are a pain. To clean the pads on the PCB, you'll need to remove the switch assembly (follow instructions carefully), and use pure isopropyl alcohol for

Roger, I figured out that those were the connections I swapped to get the left to right beam. I took a picture of the signals :

I was going to make the same request, but not to own it, just to scan it for TekWiki. There are some manuals there already (https://w140.com/tekwiki/wiki/2236) but not sure if they include the one

Jose, If you look at Schematic <11> Horizontal Amplifier in the manual you will see the connections to the Right hand and Left Hand deflection plates at the extreme right hand side of the

Hi, It is standard practice to reset the power cycle counter, and the hours counter when a scope is calibrated. The purpose of the counter is to give the calibration technician some idea of how long

Morning All! I had a 2445. As far as I was concerned, it was clumsy for what I do. I service antique radios and comm gear. You have to play games with the 2445 to get an actual freq readout and

Roger, is it the IN test point located near the end of sweep board as suggested by paragraph 28 (p5-13) of calibration process ? Jose

Where am I supposed to connect the probes of second scope ? Are there some TP available on the boards ? Thx!

Hello unclear what you say re dc feed thru Suggest that you post images of the symptoms and control settings. Beside the CAL Signal use an external RF generator to test. Beware of overloading the

Reijek, bonjour the Elastomeric switches are the most delicate and finicky to fix. Deoxit is normally fine for contacts BUT use of ANYTHING not in the official Tektronix proceedure is risky and

Jose, I believe you have another scope available. Can you leave the 485 in X-Y mode and measure the two X deflection plates in turn? The important question is what is the approximate frequency of

Hello Ozan Tried to do what you ask me. I uploaded the pictures of : - Sine wave + A-Gate in chop mode : https://drive.google.com/file/d/1CaLwPUbmhFsh9ROAMuvs79wGpUXSmQk4 - A-Gate + A-Sweep on the 485

Hi Roger, I did the quick X-Y test and instead , I get a short ~0.5 div horizontal line. Rgds José

Oops! My bad. Momentary dyslexia or something like that. I misread the original message as 2336 instead of 2236. It is a 2336-YA manual that I found on eBay. Sorry for the mistake. Steve H