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There is usually no swap meet/eBay premium for TM5003 and 5006 mainframes over the TM500 equivalents. They are an additional 1RU high, so if rack space is a consideration, go with the TM506. GPIB

I would also check Q1274, Q1282 and Q1288 as well as all the diodes on that left side of the circuit. One good thing is that you have one side of the circuit working. You can use the “good” side

I put together a representative LTSpice schematic. Sim shows the optimized ramp-up response, most of the current drive at highest ramp (5ns/div with x10 mag) is supplied by the caps at the emitters.

Hi Wes, We were looking at horizontal output stages for another thread so this one is another good schematic to look at. As others also commented Q1234 and Q1224 function as single ended to

Wes, I don't suppose you have a working scope? I know that you already know this, but this is where having a scope shines, nothing beats looking for the correct wave forms in a circuit. Are your

Absolutely no bother at all, on the contrary. Thank you for your input....

Sorry for the bother....

Of course I have. I’ve just installed it a few days ago. This scope has always had that issue since I have it.

Hi gents' I'd like to add the options to mine as well. Would someone please pass along the info to add them? Thanks -- Brian St Pierre

Good luck with Fedex. They keep leaving my stuff at the wrong address. One package was lost for over six months. The irony is that that package was new hard drives for my video surveillance

Did you see... or do you know what they are from. ( I'm always curious about how things fail... and about CRTs in general.) Regards.

Hi Stephen- Have you checked for the horizontal non-linearity with the scale illumination switched off? Just a thought.... Good luck! Tom

Hi Mark, The 2445B uses the same CPU card as the 2465B/2467B. So, the PLD will be the same. I have used the FRAM in 2465/45 A and B model scopes, and in the early 2465B's that have the battery

I measured C1220 as being good. I also lifted the Neg lead. Slightly more signal to Q1224 base but still no Left trace. Q1234 base to ground reads about 24 ohms. Wes

Sorry it's 2336 > > > > >

https://www.shopgoodwill.com/Item/113415082 No affiliation. It looks nice and clean. Bert

Wes, You said you checked DC values on Q1234. What about the bias circuits around Q1234? E.g.: 37.5v at C1235, -7.4v at C1220? Also wondering if issues in or around Q1236 might be a problem? If

There shouldn't be any signal of note on the base of Q1234, so that's normal (it gets its signal from the emitter here). The dc levels being correct tells you that the transistor itself is likely

Hi, Hi had the same problem, send me an email and I will tell you how to proceed :) Regards -----Mensaje original----- De: [email protected] [mailto:[email protected]] En nombre de Howard

Is C1220 shorted? -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus