I have already done this. I also put a drop of DeoxiT on each contact. Does anyone have a schematic of what is in the Substrate? I will build the circuit. I...
You might try Sphere in BC, Canada. They might be able to help you. -John ============== I have already done this. I also put a drop of DeoxiT on each...
Orin If the chips have been replaced with sockets then there is fair chance that a plated through hole may have been damaged connecting the top and bottom of...
... -0000 ... Thanks for the detailed info here. It looks like the board is 4-layer from the fact there are no visible traces going to/from the decoupling...
Hi all, I may need to order up some HP-specific (as in no x-over data) parts for my HP183 scope. I know there is a company called SphereBC that seems to offer...
I've no personal experience with either, but on the Tektronix Group, Sphere has a very good reputation. The high shipping is because they are in Canada, and...
Hi Folks, Is there anyone out there with a copy of a service manual for a Harrison Labs HP 6267A power supply, or who knows where I might buy or find one...
Dan I think this one is out on the Agilent web site...if not get back to me ...we have it for a modest price ( and probably with much better schematics than...
Dan I misspoke a minute ago ...I think the one out on the Agilent site is for the 6267B ... I do have the 6267A manual with a single transformer Schematic ...
Thanks. Nope, the Agilent website has a manual for the 6267B, a very different beast with two transformers and presumably modern transistors. Mine has...
Hello Anyone out there who has a scale for the 7.5 Ghz -18.6 Ghz plugin, for the HP8620c mainframe, or is willing to make a scan so I can play with glue and ...
Joe; That sort of makes sense. Maybe an uncured epoxy kind of smell? How hard was it to get the mains IEC filter part? Hi, If the instrument has a fan, the...
... All of you people have been very helpful. I have checked the resistors and found them to be at worst marginal. The chokes are healthy. I replaced the...
Hi, they are normally standard Schaffner or Schurter parts. It looks like a clipin type. Agilent have released the 8920 CLIP but unfortunatly the filter is...
I had researched *Sphere Research Canadian Test Equipment Site *before posting the question to the group. Apparently they had a substrate and sold it. Does...
Hello All, I am doing research into a project to allow a LCD to replace CRT's in ageing HP instruments (like the HP8565A, HP141T, HP8505A, HP8754A). I am...
Sam, Contact National Test Equipment. They have a line of CRT to LCD conversions for several of the later model network spectrum analyzers. They maybe willing ...
I don't know what kind of help they would give Sam. It sounds like what he wants to do is compete with them on the conversion kit and at a much lower price. ...
Sam Not intending to rain on your parade or anything but for starters there are some offerings for these out there already, not sure about ones as replacements...
Hi Paul, That hybrid is the same as used in all the 17xx series 100 MHz scopes so you might consider picking up a parts unit if you can't find it from the...
I don't know what a 3577 will set you back these days. I have one and it is certainly useful for audio, LF, HF and VHF. I use it alongside an AP Analyzer,...
I just acquired a very clean 1740A scope, reported to have survived a cellar flood. Only fault I found is the intensity came up full-blast and couldn't be...
Same here... I was always a Tek fan. I have close to 30 Tek d olds here. My first HP scope was a 54111D color digital scope. I was uber impressed with the...
... Is the CRT shield grounded properly? Weird things can happen at power-up time due to the transient created when the CRT is first charged. I've only seen...
Hi Mike whilst diodes come to mind (yes the PIV can be reduced from kV to a few hunded volts by a surge but the ones like that I had were permanetly bad. Sadly...
Hello Eugene, I just looked at my 85032 calibration standards (50 Ohms). The female open standard is PN 85032-60012. The plastic slug with the center contact...
