开云体育

Bob I tried K6DDXbob91343@... twice with no email success. It pinged back twice Kenn

Yes, it was just a coincidence. The probe ground clip is the same potential as the chassis. Now, if you happened to be poking around in a line voltage or power circuit, it would be a different

Kenn I don't know how to PM you.? $10 each might be good but I have no idea of the inventory, etc. Bob? K6DDXbob91343 - at - yahoo - dot - com

Bob please PM me Its an inheritance thing Just go get em and give her $10 each, she will be happy Kenn

Interesting.? Do you have any history on this stuff?? I would like to see an inventory to determine the advisability of making a trip to San Diego. Bob

As a note:? the smell of those capacitors is unique, and lingers.? They are not really needed for operation, but keep the scope from affecting other equipment on the same power line.? They are more

Greetings. There is a lady in the San Diego area who has a *BUNCH* of Tektronix and other equipment she needs to clear out. Apparently from a hoarder like us. Please send me an email and I will post

I'd chalk it up to coincidence. The power supply boards have snubber networks consisting of C1018, R1018, C1016 and R1016 that are across the mains. Those caps are known to blow out and smoke like

I was tinkering with an RF control circuit and couldn't get it to work. So I dug out my Tek 2465 scope that hasn't been turned on in about ten years to do some signal tracing. I plugged it into the

Chris, I agree with Toby! Also there are condensers elsewhere that can cause problems. The two 4,7mfd on the high voltage board are likely bad. I replaced mine with 6,8mfd Nichicon ULD types. The

On 2022-02-23 6:31 p.m., cmjones01 wrote: > I've just tried to use my 7104 for the first time in a few months. > It's been stored in the attic of my house for that time. When put > away, it was

Hi Chris , I had that effect on one of my 7104's some tears ago , if I remember correctly there is a preset focus control - maybe focus range control near the rear right-hand side if you take the

I've just tried to use my 7104 for the first time in a few months. It's been stored in the attic of my house for that time. When put away, it was working really well. It still seems to be working

After replacing the mains switch with ?5 German made pcb mount , only 4 pins , but functions ok identical size and operation scope is back running normally , no other component needed

I was told that support ends by 2025.

Hello Mark, thanks for the suggestions. Have you worked on this supply? I remember having read about this supply not being very service-friendly. To my knowledge there is nothing close to a service

Hi Greg, Yes, those look like very nice units and have wished for one for quite some time. As you say, though, they can be pricey. I do think I can get it back in running condition by upgrading the

Hi Dave, Unfortunately, it's the end where the tip goes. It took me a while of glancing at pictures to suddenly realize that was missing from mine. Thanks, Barry - N4BUQ

geo, every design involves choices and trade-offs. Modern autos have more and more bugs and trade-offs, notice all the recalls. Since 1970s 7000 scopes TEK multiplexes the CRT characters with the

Barry, How interesting. Obviously the product went through some design changes. The manual I located in the Hakko archives is dated August ’94. It sounds like you are uncovering some other