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Date
Re: Analog vs Digital Oscilloscopes
7103/4's aren't that rare, see them all the time at fleas for $100-300 and usually with plugins. I only have the R7103 as I wanted that form factor. Peter
By Peter Gottlieb · #84422 ·
Re: Analog vs Digital Oscilloscopes
Indeed, and that is the slow set of plates. Think vertical for the real speed. -Chuck Harris David DiGiacomo telists@... [hp_agilent_equipment] wrote:
By Chuck Harris · #84420 ·
Re: Analog vs Digital Oscilloscopes
Hi Dan, I think there is a math error, but its only physics, so close is pretty good. That is why I said "The 7104... operates in this region". Imagine what would have come next if tektronix had made
By Chuck Harris · #84421 ·
Re: LO port on HP 8591A
Hi Gerry Option 010 is the tracking generator and the LO port is part of it. 8591A's with option 010 do appear from time to time, albeit at a price. A quick way of determining of option 010 is fitted
By george edmonds · #84419 ·
Help needed with HP Pin diode.
I have a Schlumberger 4002 signal generator, I need help with a pin diode in this unit. The pin diode is QPND 4709 (HP manuafacture), I can't find it anywhere, I am looking for this or a replacement
By henrik.clement.sommer@... · #84418 ·
LO port on HP 8591A
I am about to buy a HP 8591A SA for what seems like a good price, given availability of these units in Ireland (€400). However, it does not have the TG fitted, and when I look at the back, the LO
By Gerry Kavanagh · #84417 ·
Re: 141T reference replacement..a cure??
Examination of the 8552A schematics suggests that the blown fuse is connected with +100V only indirectly, because it is the reference controlling the -12.6V regulator. The +20V rail won't go above
By Dave Wise · #84416 ·
HP 3325a GPIB Stops Talking after 3 Minutes
My 3325a works perfectly from the front panel. However, when I attempt to control the instrument from gpib it will communicate for only 1-3 minutes and then fails, bringing down the gpib bus and
By Stan Katz · #84415 ·
Re: HP-3586B PS problem - connector J2 overheating
Hi Guys, My recommendation is to sacrifice serviceability a little bit. Scrap the Molex females and solder wires directly to the pins. If two adjacent pins are being used to ¡°split¡± the same
By bill.lauchlan171@... · #84414 ·
Re: HP-3586B PS problem - connector J2 overheating
Glad to be able to help. These units are complicated but quite repairable so I expect you could get both running. Peter
By Peter Gottlieb · #84413 ·
Re: HP-3586B PS problem - connector J2 overheating
Thanks Peter, I am glad to hear that I'm not alone with regard to the connector overheating failure on the 3586s. When I first saw that both had overheated at roughly the same time and in the same
By jim@... · #84412 ·
Re: Analog vs Digital Oscilloscopes
[hp_agilent_equipment] <hp_agilent_equipment@...> wrote: It's actually 2ns/div unmagnified, or 200ps/div magnified.
By David DiGiacomo · #84411 ·
Re: HP-3586B PS problem - connector J2 overheating
Thanks George, That's a sensible recommendation and I will follow through with it. I received another reply suggesting the same thing from another group member who also had this problem with his
By jim@... · #84410 ·
Re: 141T reference replacement..a cure??
My experiments scoping NE-2 ignition show that (a) illumination does not reduce the firing voltage, and (b) the smaller the difference between supply voltage and firing voltage, the longer it takes to
By Dave Wise · #84409 ·
Re: HP-3586B PS problem - connector J2 overheating
I had this same problem. I ended up replacing the PCB connector first, just because I was worried about carbonization. When the cable connector pins overheat the springs inside lose temper and get
By Peter Gottlieb · #84408 ·
Re: HP-3586B PS problem - connector J2 overheating
Hi Jim These look like standard Molex connectors, whether .1" or .156" pitch I cannot tell from the images. These connectors rely on a single wiping face under spring pressure from themselves, when
By george edmonds · #84407 ·
HP-3586B PS problem - connector J2 overheating
Gentlemen, I two HP-3586Bs that have gone down with essentially the same problem. One failed last year and the other one just yesterday. I attempted a year ago to clean both power supply boards of
By jim@... · #84406 ·
Re: Analog vs Digital Oscilloscopes
Hi Chuck, ? ?Almost, but not quite. ?I don't know what the electron beam current of a 7104 CRT is. ?Let's assume 1 microamp (that's probably a low estimate), so 6.24E18 electrons per Coulomb ? x
By Daniel Koller · #84405 ·
Re: OT: Spinner 7/16 DIN female gauge
Hi Re APC7 collets I am also after a quantity Might be an idea for a bulk purchase as I could use 10 to 20 Also after an APC 3.5 cable Paul B _____ From: hp_agilent_equipment@...
By Paul Bicknell · #84404 ·
Re: Probe bandwidth
Google for tektronix abcs of probes and download their classic 60 page primer. John K1AE From: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...] Sent: Thursday, July
By John Allen · #84403 ·