开云体育

Hi RAM, I realize that I didn't even mention your solution/device, which I think is very elegant. Programming the device may be a complication for some though. Can a simple device like the popular

Hi all,ive just got around to looking at my 453 fet model,its lost its triggering,i want to use the external trigger input on the top r/h bnc,just for diagnosis,what signal is needed,ie level

The diode addition is around Q664, half of the slope comparator pair of transistors. (B-time base) There is also an extra resistor. The soldering looks very neat, as if it was done at the factory, but

Brian - The schematic is quite simple and I'd be happy to share it in reply to a PM. Raymond - thanks for correcting me on the ROM rot in mask ROMs. Best - Ram

Physical space is the problem here, not electrical specs; the four 24-pin ROMs are mounted end-to-end lengthwise with only 0.2" in between, which doesn't allow for the longer 28-pin 2764's. on

The z-axis response adjustment may help. You may need to turn up the intensity. You should see the leading edge of the triggering signal in any case. -- Bob Haas

The MCM68766 can always be replaced by a 2764 using a 28 dip socket to 24 dip header.? I don't have a 7854 and didn't look up the specs, but need to check the access time.? I built a few adapters

A few years ago, our member Holger Lübben designed a replacement ROM card using commonly available components. He had complete sets and kits available. See this thread:

Nice. Is the schematic public?

That's what made the board so easy to see:? square with a hybrid in the center. -Dave

Hey Jared, I guess I confused this with the TTiP link https://w140.com/tekwiki/images/d/da/Ttip.zip. Doesn't look like this goes beyond the -A scopes, if the readme files are to be trusted. My TDS784D

jonpaul@...

Hello Jon Thank you for the reply. As mentioned, I'm looking for a PS 501 power supply tested (supply and meter) I'm not sure of value since depends on condition but comparing with similar plug ins, I

Dave: Thanx for looking. If you ever come across a Vertical Switch circuit board from a 7104, please contact me. I suspect there are few individual boards just laying around. The board makes use of a

Hi Gary, I looked the PCB up in the 7104 manual and then checked my stash of boards, and I don't see anything that comes close.? I did have a full set from a 7104 that was taken out out by a forklift

Ok now had time to evaluate the scope in more detail. I note a poor blanking on the LHS at sweep speeds of 100ns/Div or faster; I see exactly the same on my other working 468..... is this to be

Dave: I will try to verify the part number when I get home this evening. As for now, the Tektronix Component Number is A16, and the Tektronix Part Number is 670-4769-01. I need a fully populated

On Mon, Apr 4, 2022 at 07:23 PM, Mark Vincent wrote: > > diyguitarist, > > The two gentlemen, Michael L. and Ed B., are absolutely right. Others will > have great advice as the post. I have the 453

Yeah I've went thru all of the controls & switches. None of them have a problem as far as I can tell. I did notice that if I put the Horizontal Display switch between DELAYED SWEEP (B) and EXT HORIZ

Yeah, I have 10mV on the +12V & -12V supplies. I still need to check the 75V supply one more time, but as I recall it was nothing significant.