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Jerry, Nice words for a new comer. I agree with everything you said. I really loved this group until Yahoo changed the interface. I'm trying to use it in spite of itself. --Victor

Tek used both a off white and a black gasket. They are interchageable. --Victor

Hi all, My trusty 7603 developed a fault yesterday while I was using it, and I fear that a Tek special IC has expired. Until yesterday morning it was working perfectly. I looked away to do something

Jay, Thanks I did not know the scope actually had the hardware already installed, memory. What if I installed the 2M option board, i.e. the PCMCIA HDD board. Does that still require

All Trying to clear some space in my lockup in the UK, so absolutely free to anyone who would like one, there are four 7704A 4-bay mainframes and one 7603 3-bay mainframe. There is also a selection

Hi Victor, Yes, they are stored in the DS1486 chip. All the 700 series that I've dealt with can do option 1M, but you have to have the right memory chips if you want to enable 2M. For the 784D

Hello all, I got the machine up and working. The audio and the display are working again. I have also finished installing all of the updates. I still have to install the printers and a bunch of

Patrick, I did check the bandwidth with my SG5030 and the TDS3054B easily exceeded the limite of 550MHz of the SG5030. I have other generators but I didn't actually try them yet. I am in Taiwan

Dennis, That is the answer that I was hoping for!! The donor board also has a bad connector and I know that some of the pins are damaged on that board. The donor scope also has other problems

Hi Paull, Yes the nylon housing can be replaced without removing all the pins, and it is (compared to all the other ugly things I mentioned) not too hard to do. Although, since you have a spare 7103

I know some of the options in the TDS models (specifically 784D) are just software locks, but do the hardware based options also require unlocking? For example 1M, 2M? Thanks, Victor

Dennis, Thanks! I don't think the pins are bad, my question is if the nylon housing/pin guide can be replaced WITHOUT removing all the pins? My worst case is only one of the pins is actually

Hi Paull, This is bad news. First you would need to get hold of those pins and another plastic housing. I don't know of any source for the pins. The housings can be found much easier. Second, you

Hello, TekScopes, I am new to the group! I have a R7903 (B192xxx) that has a broken Main Interface connector, left bay. It is difficult to see but it appears that the pins (gold

Manfred, If you want a safer way to test your transformer you can feed the screen with an external variable DC power supply. Then you don't depend on the feedback regulation and you can work at

Manfred, At first sight (at those 6AQ5 characteristic curves) it seems possible to increase the primary AC and obtain lower anode voltages during conduction. Another way would be to keep the original

If you want to really rip up some ferrites, try a diamond-bladed ceramic tile wet saw - you can make your own custom shapes starting from basic core types. It's not a precision process though, so all

Dave You have that right. And The 310 has the filament as 1 turn around the center leg So it's 1.3V/Turn on the center The 647 (and 547) have the filaments around the outer legs so it's

I may have this wrong, but I think 2.6V/t on the center leg equates to 1.3V/t on the outer legs, because each outer leg conducts half of the center-leg flux. Sorry if this is obvious to the main

Manfred If you need any other measurements for comparison let me know. With that in mind, I reviewed all the usual suspects for manuals Bama, Ebaman, Elektrotanya and W140, which look to me to be