Please help me, I am looking for service manual and/or schematics for HP 1720A scope. My oscilloscope has vertical deflection failure. Tnx, Werner, YO6OGW...
Lothar, Received the HP 909F Termaination today. Everything great! It took a little over a month since I sent payment but you came through with a very good...
... Like I said, there's a bit of a learning curve involved. When I started out with it, it was very early in it's development. IIRC, LBNL was one of the ...
What im trying to say is if there is a learning curve why not learn to work with whats considered to be the industry standart ? ... From: Bill Brown...
GPIB is a very simple bus -- all you need is some logic level converters (74HCTs, probably) and you're all set. There's no need at all to use a dedicated...
can you know of some examples ? how do i handle the adressing and software protocol ? ... From: JAN OBER <ober.14@...> Subject: Re: [hp_agilent_equipment]...
can you know of some examples ? how do i handle the adressing and software protocol ? ... From: JAN OBER <ober.14@...> Subject: Re: [hp_agilent_equipment]...
Maybe because free sometimes trumps industry standards? Maybe because free sometimes works better than industry standards? I've gotten by just fine for over 25...
Yes thats true, I did some work on an HP1000 gpib to terminal (rs232) interface, nice setup as we ran iy synchronous with the high/low b/w switch on the montor...
HP Has a couple of GPIB controlled switches (59306, 59307, I have a few here) that don't even have a microprocessor, only TTL logic, and you can set the...
Hi, This might me slightly off topic but here goes. The general block diagram of a signal generator (8657 for example) goes something like this. The signals a...
Laboratory signal generators are virtually always designed so that they present a near perfect 50 ohm impedance to any signal that reflects towards the...
... True enough, the Commodore 64 had such an interface. You may want to look into the 75160 and 75161, which are designed as 488 bus driver chips. You will...
Theres a 48mip 8051 single micro with usb2.0 and heaps of flash and even a onchip jtag real time debugger which would be ideal for gpib - perhaps even as an...
IMHO this talk of homebrew GPIB interfaces is just nuts. You will spend a lot of R&D time and end up with something that works with exactly... nothing. Buy a...
... It's only nuts if you don't already have something for it to work with. If it's part of something that is a coherent design, then it makes sense,...
Agreed. Oh, BTW, I'd stay away from the HP HPIB - ISA adapter. I bought one to work with a Laser Interferometer, but AFAIK, there is essentially zero support...
The point I was making John, is that these days there are powerful chips around that are fast enough even for analysis functions, not necessarily for making a...
... Unfortunately, that's a popular misconception that has ensnared more than a few. :) Designing a simple GPIB device might be easy, but a host interface ...
john i only try to build a listener, basically all the thing has to do is to drive a few switches, i want to use the Cypress device because it has USB build in...
John Using a prologix dongle that costs $149 ea on a CPU that retails at $2.99 is nuts ! the other problem is that in this case i will need a CPU that has USB...
"I agree, is probably not a concern with most HF signal generators." So taking the output amp of the generator to ground will not damage the amplifier? Is it...
... Usually it is designed so that you can consider it having a 50 ohm resistor in series with the generator output. Sometimes this is achieved by using a...
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