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All good feedback from everyone. thank you.

We just use the std 4x BNC to test lead adapter. No need for special fixtures at the DC and test freq. Jon

On Sat, Jun 15, 2024 at 10:33 PM, Dr. David Kirkby, Kirkby Microwave Ltd wrote: > > On Sat, 15 Jun 2024 at 08:20, Jared Cabot via groups.io ( http://groups.io > ) <jaredcabot= [email protected]

[email protected]> wrote: I can't recall seeing that on the cal certificate of a 4284A which I had calibrated by Keysight. Not 100% sure. I managed to get a free option 006 (support for 4 m

I recently encountered an “A5 graphics DRAM error” on my 70004 display and while web searching came across this thread. Initially my inclination was to try replacing the 16 VDRAMs on the A5

Re, Can you confirm if the din interface of the Atlas 757 PCi3 board (in the Agilent 54810A) is in XT or AT format. I made myself a ps2/ Din adapter, but no communication, except the reset of the 3

After taking a look at the 4284A Operation Manual, I derived the internal wiring layout for the 04284-65007 Interface Box. I uploaded a diagram as per the link below:

Great read, Gianni!

Hello, I am asking you to move forward on several issues. First this oscilloscope did not start at all. I found the failure by dismounting the main acquisition board which had a capacitor on the

Apart from suspecting the 5dB pad in the 8970B... I will hint at a solution to this problem may be the supply voltages out of tolerance. Check all DC voltage levels on the various boards and modules.

It works on the 8970A and reports +4dB after calibration. It doesn't work on 8970B. Do you have a 8970A and 346B to check the uncorrected value reported?

Am 14.06.2024 um 10:59 schrieb DF6NA Rainer: SRI it's the 346A?? ! ! !

E 13 =>? ENR must be 11dB minimum at 30MHz - the HP346b has 5dB ! ! ! Am 14.06.2024 um 10:49 schrieb Razvan Popescu via groups.io:

Hello, Since the thread about cheap noise source on the other list got very interesting and I was doing some repairs on my HP 8970A and 8970B I would like to ask some questions which I am not sure how

Thanks to all that replied and helped me find a counter. I settled on an HP 5342A from a list member. Thanks Gary K4FMX

No, not Avantek. The IC (just the chip) is supposedly still in production at Keysight, but I have no idea if it's still available in that package. I think it was designed in the 1980s. Vladan

Could this be an Avantek part after spinning out from HP?

Just a guess, in case you can't find the data sheet: Vd=7V Id is adjusted for 150mA max. or leave it at Idss if it's less than 150 mA. Vladan

The IC looks like an old HP traveling wave amplifier, but what’s around it does not look like it was made at HP. The gate voltage (bottom left pin with the wire going to the feedthrough) is quite

Hello Tam, thanks for your kind offer. You can contact me via dk1vi at darc.de Ernst