Hi all, I own a small herd of 5xx scopes, starting with a 567, more than 30 years ago. To me, one of the most fascinating reads on this planet is the patent bunch on the 54x and 58x series, the name J

Hi all, I own a small herd of 5xx scopes, starting with a 567, more than 30 years ago. To me, one of the most fascinating reads on this planet is the patent bunch on the 54x and 58x series, the name J

Hi snapdiode, yes, in Euros. Prices for TEK equipment tend to be a lot higher in Europe due to less stuff available here. Cheers, Jochen DH6FAZ Am 18.12.2020 um 17:27 schrieb snapdiode via groups.io:

Hi, I have a list of German Ebay sales for motre than the last 10 years. The column titles are ITEM, PRICE, DATE ddmmyy, Number of bidders (zero means no sale), and the name of the seller of unsold it

Hello Rogerio, this group is most certainly the right place for your problem! Cheers Jochen DH6FAZ Am 29.11.2020 um 16:28 schrieb Rogerio O:

Hi all, I acquired a 2710 as non-functional, and the 100 MHz Osc had failed. I put in something cobbled together, and enjoy it working fine. Cheers, Jochen DH6FAZ Am 25.11.2020 um 01:13 schrieb WB6GHK

Hi, I've had this exactly with a 684, about half an inch radius around the SMT Lytics showed oxidization, it took me 2 days to safely unsolder the 72 capacitors in this unit without harming the pads.

Hi Ed, I think you missed my main point, the photo diode is quite high impedance. The problem is, that at 1M impedance I get 5+ Volts on the input, decreasing to 4 mV when switched to 50 Ohms. But the

Hi all, last week I encountered a strange behaviour when operating a Tek TDS 5204 Scope. We were measuring the output of a photo diode that was connected to an input channel. It is operated from a 12

fan. It draws the air in through the enclosure and expels it at the back of the scope. Quite the opposite: The fan will draw in air at the back of the 485, and you can feel the warm air coming out of

Hi Ed, I am one of the developers of the HM 5005, and also the HM 5010. The focus problem may be linked to resistors in the 2000 Volt feedback path that have altered their value - they were at their v

Hi all, i am repairing a TDS 620A that seems to defy my efforts to get it back to service again. To start, it had the "Electrolytic Disease", and I changed all of them and lots of corrosion on pins ne

Hi Group, if I am correct thinking of a glass coil the electron beam will pass through, instead of a straight tube, or "just" a U-turn, then a homogeneous magnetic field parallel to the axis of the CR

Hi, in this model, a "MOD 703" notice is included in the pictures. Both versions of the 453 exist. Mod 703 is the different CRT. Regards, Jochen DH6FAZ Am 26.11.2017 um 16:44 schrieb toby@telegraphics

Hi Roger, I think I had a 2710 with a similar problem. It turned out that the 100 MHz TCXO was not working, maybe you should check this out. Good Luck! Regards, Jochen DH6FAZ Am 28.10.2017 um 18:20 sc

Hi, in Europe, the manufacturer Hameg had this as a regular part of its modular measuring instrument system, the HM 8014. It uses Kelvin clamps to look formilliohm resistances and will emit a tone who

Hi all, I don't know if this the exact topic, but a TEK 567 with the 6R1 plugin and the 3S76 and 3T77 was able to to time interval measurements, even depending on the amplutude of the trace, not only

Hi group, it gave me a fit of sorts when a very active HAM friend died of cancer, he was single most of his life and had accumulated a lot of Ham equipment, especially magnetic antennas. When he passe

Hi all, I am also interested in the documents. I have a C1-91 and a C1-122 here with the plugins, also the cal plugin. Of extra interest would be the documantation of the sampling plugins that were al

Hello Hans-Peter, this story is from the founder himself, when we were driving between different plants of the company. But remember, these were the rathersturdy chassis of the last tube (except CRT)