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Hi,, Destroying a 585 for it's tubes is like Tearing down The Statue of Liberty to build a parking lot. Jerry Massengale

Thanks to those who supplied links, I'll try the Cyclon from Mouser or gotbatteries.com. Larry

I was afraid of that. I will make a good scan of the 7904 schematic and post it for you. <keitho@...> wrote:

Your looking at the wrong website.? Here is the datasheet for the Cyclon battery:? http://www.enersysreservepower.com/documents/US-CYC-SG-003_0608.pdf

Thanks David. Some of the diagrams for the TP waveforms are unreadable on my pdf's, but I will post what I find. Keith

Hi Jim- Unfortunately, with this model scope the crt is almost completely and tightly surrounded with aluminum frame and circuit boards making it very difficult to see much of the crt itself. I did

In case it wasn't clear, the battery door with accessory pouch still fits after retro fitting with the "D" size lead acid batteries. scotto

<keitho@...> wrote: That is what your readings suggest to me. The problem appears to be in the z-axis amplifier itself and not earlier. Unfortunately the z-axis amplifier is pretty

Hi Keith, have you turned the lights out and looked at the back of the crt to see if the filament is glowing? the deflection plate connections are little pins on the neck of the crt, usually about 5

Hi Bill, ripple? your on the right track I believe. try checking the ripple output on all the power supplies. the caps in these older scopes go bad with age and the first sign is ripple on the DC

TP1801 measures 5.69V (SM says should be 5.7V) TP1805 measures 1.74V (SM says should be 1.8V) So maybe, as David says, that sugggest the (main) problem is not earlier in the z-axis signal chain?

Last fall I sold a good one in the SF bay area (Silicon Valley) for $130 with one probe, no manual. Two buyers called, first one got it. Bob

I'd say $75-150, depending on the details: How good is the condition? Is there a warranty? Are they Tek probes, or generic? Is it an original service manual, or an operator's manual on a CD? Anything

Oh, good call. That did not even occur to me but I routinely switch my meter back and forth between average and RMS to check my sanity on AC waveforms. Some meters may have problems with the high

The readout acquire uses the same ICs although it is encoded to binary and processed by the microprocessor before being displayed. I left out checking for the time slot pulse in my post. If it was

The 7854 readout is part of the display board. The inputs use the same Tektronix custom ICs (analog multiplexor and analog to digital converter) as the other 7000 series readouts but the output is

What is a reasonable price to pay for a 465B in good condition - with probes and manual? Thanks Bob

Trouble is that a 585 has almost no monetary value. Unless you manage to find someone local who can appreciate an 80mHz tube scope with 4 cm deflection you probably can't give it away. Wouldn't it be

<magnustoelle@...> wrote: I was a little surprised that it worked correctly with HD video and counted the lines correctly. I half expect it to roll over at 1024 lines although there was no good

In the case of the VGA signal I looked at to play with the video sync on my 2440, I used sync on green instead of the separated horizontal and vertical sync signals. wrote: