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)

Hi all, in the late Seventies the founder of the German oscilloscope manufacturer HAMEG (some sold as B&K in the US, and BBC Metrawatt) was in negotations with someone from the purchasing department o

Hello, the TCA420A and the TCA 750 are on stock in my personal "stock", and they are at least 20 years NOS. The FCH131 I might have, but not unused. Sending to Israel would not be an obstacle. (I boug

Hi, the most important setting is the raphics adaptor, it is AGP by default, but the Scope uses the PCI one. Apart from that I disabled all of the shortcuts while booting, and I disabled some "smart"

Hi all, the TDS 5104 is back in use. Due to the empty backup battery the mainboard had lost the settings. All it took is an external monitor, a mouse and a keyboard and some guesswork to reach some BI

Dead - it had all of 50 Millivolts..... changed it. Am 14.09.2016 um 01:54 schrieb Jay Walling jayw_comark@... [TekScopes]:

Hi all, recently a TDS 5104 has made some problems at startup. First, there was a display "Display Adaptor reconfigured", but it didn't start. Now, there are 2 beeps from the mainboard, the floppy dis

Hi all, recently a TDS 5104 has made some problems at startup. First, there was a display "Display Adaptor reconfigured", but it didn't start. Now, there are 2 beeps from the mainboard, the floppy dis

Hi all, recently a TDS 5104 has made some problems at startup. First, there was a display "Display Adaptor reconfigured", but it didn't start. Now, there are 2 beeps from the mainboard, the floppy dis

Hi all, I still have several dozen BFR 90 here, NOS, original Siemens. If someone is interested in building this generator.... Regards, Jochen DH6FAZ Am 03.04.2016 um 09:32 schrieb 'Craig Sawyers' c.s