The upper beam on this scope will only sweep unless set to trigger from the lower beam time base. I can only get a dot with the upper beam set to the (A) upper time base. Both time bases are set the

I have a 2445B that stopped working and need a set of shematics, I have the 2445 service manual but it is very different and the only 2445B manual I could find on line does not have the schematics

Albert We have it including the separate Options service manual http://artekmanuals.com/manuals/tektronix-manuals/ Enter 2445B in the searcxh box Not free but not insulting either, high quality

Based on the dates, the 2465B may be very similar if not mostly identical.

There are a number of different manuals for the 555. Becky at manualsplus sent me an entire collection of 555 manuals shortly before they shut down. I'll have a look this weekend to see exactly which

For the odd schematic, a decent camera phone can serve extremely well instead of scanning. Malcolm <TekScopes@...> wrote:

Or just a Digital Camera, and then to software. Mitch N4MF

Thanks for your time, wolf.

There are some ways you can narrow down the problem before tracing the z-axis control circuits: 1. Does the readout intensity control also operate backwards? Its signal goes directly to the readout

I turned to a new attempt repeating the CAL cycles to get rid of that Test 04 fail 02 condition when powering up the scope. Just went through CAL01 and still have this error. Do I have to go through

Hello everyone, I'm not sure if I am posting this in the right place. If I am in the wrong place please correct me. But I need a beam Finder switch for a 2445 scope the part number is TEKTRONIX "

TekScopes@...> wrote: ​Have you tried ebay or Qservice? I can see the switch is available on both sites. Malcolm​ [Non-text portions of this message have been removed]

Thank you for the reply, I managed to get a service manual with schematics. Best regards Sent: Friday, January 22, 2016 4:23 PM To: TekScopes@... Subject: Re: [TekScopes]

Dave, Thank you for the reply, I finally got a manual with the schematics section yesterday. Best regards Albert Sent: Friday, January 22, 2016 4:09 PM To: TekScopes@... Subject:

Hi David, the intensity control through the emitter of U99B to the collector. The intensity is controlled by this current. If the -15 volt connection to the intensity potentiometer is open, then

Thanks Tothwolf, I found one of my printers is an HL-2070N, and it worked right off the bat with the output printer type set to Laserjet. This may be the only one that takes PCL and has a Centronix

I managed to get a pretty good setup going. I happened to have an old rack-mount, slide-out LCD VGA station on hand that I got for free a while back. When opened up, it perches perfectly on top of the

Or you could connect a newer USB printer to your legacy equipment with one of these: http://www.ipcas.com/products/centronics-parallel-to-usb-printer.html

Here's another interesting approach, but you have to make your own cable: http://www.printcapture.com

I assume you have a type 21 timebase in the upper beam slot and you can't get it to sweep at all. Have you tried adjusting the stability screwdriver pot? What is the "ready" light and the other neons