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If you elect to inject a signat AFTER rather that THROUGH the attenuator be very careful - you risk damaging the first mixer. It is much safer to disconnect the attenuator input (sig gne side), inject

Good luck ! Cheers! Bruce Quoting Rik Rasmussen <rikrasmussen@...>:

I cannot recall exactly at what point you could not install HP Basic on the series 9000/300 series or the 9000/700 series, as the operation system (OS), but beyond that point you simply installed

I had a 3456A missing five springs, four were recovered from inside the case but the fifth had on AWOL, a bit of 2 thou shim steel (El-cheapo Chinese feeler gauges are a good source) and some tin

Hi Tom, You are correct, I'm in Norway. But we are not fully EU member, only 'EU-light'. Where are you located? Thanks, that would be very kind of you. We could take that off list I guess. I guess the

Hi Askild, I have asked, they don't combine shipment of PCB and 3d print orders, they said the taxes are different. I got four made and that was 12 Euros including shipment. I can send you one of them

Hi Tom, Yes they really look great. Much better than my FDM printed one. I might just have to get some printed at JLC as well. Maybe I can combine it with PCBs next time I order. Hope it fits well.

Hi folks, the resin printed parts from JLCPCB have arrived and I am positively surprised about the nice surface finish, see picture. Thanks again for all the great advice! Best regards, Tom

Hi, while cleaning the keyboard of my 85101C display section, I have noticed that one key is missing a spring. It seems to have disappeared. It is not found in the unit. Does anybody know where I

hello group, here I have just transformed my HP 8593e by equipping it with the LODA and its control card for me to be able to use my HP 85644A tracking with my analyzer is it necessary or is there a

Hi Mark, Glad to help, hope you get it up and running soon. Just guessing here, but maybe your A6 board has at some point been next to another A5 board where a tantalum capacitor has decided to become

Hugh, Just a quick note to thank you for the tip regarding my HP8647A smp - I checked it through carefully and could find nothing amiss until I double checked the 470k resistor from the HT as

Is it possible to run the 11990A or other software normally run from a series 300 using a 700(715 specifically) PA-RISC system with basic/ws installed? I picked up two systems for pretty much the

Tony, I have a question. What is the model no. of your HP signal generator? HP 8586A does not compute. All HP 85xx 4 digit model nos. are spectrum analyzers, all 86xx 4 digit model nos. are signal

It's a 2N3866, not a 2N3566, from what I could see. The 3866 a 1W 800MHz ft device, which makes much more sense for a 50MHz sig gen. It's also used as the vertical deflection drivers in the 100MHz Tek

If what I could see of Rico’s reply, 2N3566 transistor, is correct then here is the info for that transistor. The comment also indicated that it was a selected transistor. My best guess since you

What I used to do with the “8510”, “8566/68”, “8340”, etc. push button switches was: 1) clean the spring below the key cap above and below the red retainer bar with a q-tip soaked in IPA

You clearly have a problem. You are gonna have to open it up and get to the input attenuator. Not sure how... these things are packed! As mentioned, you must inject a signal AFTER the attenuator.

The following files and folders have been uploaded to the Files area of the [email protected] group. * /HP_Verification_V5-0.zip (

Thanks to both of you. I will open it up tomorrow and check out the attenuator.