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Thanks again guys! The 2247A has been running overnight with signals in each channel and everything has been humming along ok, no lockups. I'll put it on the bench sometime today or tomorrow and

Comparing a 2465 to a 2247A is a bit like apples and oranges, but understood the well meaning intention to be helpful in the sense that both are old. But for one luckily the 2247A does not rely on

Anyone know where i can get one of these?

Any of you guys taken this board out? Whats the procedure.

This is an interesting article about "Paul" building a modern day version of the Tek SG505. https://hackaday.com/2025/03/29/recreating-the-analog-beauty-of-a-vintage-tektronix-oscillator/ Here's the

It’s not unreasonable to expect that the power supply is in need of a recap, and a marginal power supply could cause random problems. In your shoes I’d pull the case and measure the power

Thanks Greg - I got a replacement but the fine details of how this one operates does not exactly match that used in the 2465. As you say, the plastic construction is pretty delicate. I will take

Thanks for the reply and perspective. I fully understand these are old scopes and have no problem pu

Hi: Where are do you live if we want to pick them up? Walt outlook.com@groups.io> wrote:

Jay, I have two 2465's here, and they're known for quite a few gremlins, including NVRAM battery issues, among other problems. In my case, I have two good ones, and I can have an excellent one by

Hi folks. I recently purchased a Tek 2247A scope and upon testing it for the first time, it locked up when testing the B sweep with a msg that said 'INVALID INTERRUPT FROM 0993:F082' When I

Those switches were originally made by ITT Schadow many years ago and used to be available in many styles of buttons. I’ve seen failure of the indicator several times due to the delicate plastic

Actually, I'm going to reply to my own posting... - I have realised that getting access to the power indicator is easier than I feared - just undo the Torx screws and take the front bezel off. - It

I can't help you on the circuit boards, but to you or anyone needing a 575 curve tracer, I want to sell mine.? I don't want to ship it.? Many other Tek items if interested.? I live not far from

Hi, I am looking for one of Dennis's PCBs and I think the one you wrote about is the one I'm looking for. He and I were discussing it in emails a few years back and I got COVID and was down for a

Hi Clark. Thanks for the replies. The reason I asked, is that I am in Brazil and shipping from the US often starts around $40. Couple that with the $20 item price, and then the 100% import tax on

Hi All I have a Tek 2465 which has a small fault I am hoping to repair. This is the 'sleepy eye' power indicator on the front of the 'scope. The power switch itself works fine; but the indicator

Need cap 290-0585-00, 350uf, 75V. Anybody selling? I'm in MD 20882.

Actually not sure if I broke this or if it was broken before, since it was loose, but there are signs of scarring inside. Anyway, it sure is broken now. The series of photos shows how the bias return

The following photos have been uploaded to the 492 Bias Return ( /g/TekScopes/album?id=301504 ) photo album of the TekScopes@groups.io group. * IMG_2343.JPG (