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Re: Frequency calibration?
Hi Anders, with my counters, I put a 10 MHz sinewave from the GPSDO (thunderbolt) on channel 1 of oscilloscope, triggering on it, then I put the counter's 10 MHz reference to channel 2 and I trim the
By Francesco Messineo · #86122 ·
Frequency calibration?
What would be a reasonably cheap way of checking frequency calibration? I have an old hp 5328, with oven. I also have one of those cheap GPS modules where the PPS output can be reprogrammed. I set it
By Anders · #86121 ·
Re: Schematics for HP 8558B SA
Paul There are several different versions of the service manuals for the 8558B.??? In order to direct you properly could you please tell us the serial number of your
By Dave / NR1DX · #86120 ·
help hp5300a / 5303a manual service
Hello all, I'm looking for hp5300a / 5303a manual service thank Roberto
By iw5bsf83@... · #86119 ·
Schematics for HP 8558B SA
Hello I have the service manual for the HP 8558B SA, but there are no detailed schematics included in the download PDF file I have. Can anyone point me at where t get the schematics ? Thanks
By Paul · #86118 ·
Re: Fake fire New
What I thought amusing was that the reporter I was listening to essentially said "I've never heard of this company before".? Usually reporters stay away from personal comments when in the field, but
By Dave Seiter · #86117 ·
Re: Fake fire New
The fire burned down the west slope of Sonoma Mountain (having destroyed many of the homes on the mountain) and stopped just as the slope flattened out, half a mile from our house. Many homes in the
By Jeremy Nichols · #86116 ·
Re: Fake fire New
That's relatively good news. I see the two main hotels (Fountaingrove and Hilton ) weren't so lucky. I'm still concerned about the homes of many friends. Daun Daun E. Yeagley II, N8ASB Sent with
By Daun Yeagley · #86115 ·
Re: 8901B Power level zeroisation
By Michael A. Terrell · #86114 ·
Fake fire New
As some of you may know, Keysight's home of Santa Rosa, CA suffered a major fire. Thousands of homes were destroyed as the fire raced down the hillside where Keysight is located. ABC News (our ch 7)
By Caesar Valenti · #86113 ·
Re: Avantek SPP90 amplifier
Hello all, Its alright Ed. I thank you for your replies. I'm currently in not too much of a rush at this time. Planning to swap this component around late fall or winter. The bench was relocated
By Lexter Negron · #86112 ·
Re: HP854A Test Oscillator with worn out attenuator
Low frequency distortion is likely a capacitor failure. First check the power supply ripple, then the electrolytics in the feedback signal path, then the main signal path. I would start with A2C3,
By Dave Hills · #86111 ·
Re: Chinese-made reflow soldering ovens
I also bought the T962 in order to solder SMD packages with power pads. Did not apply firmware change, but used the kapton tape mod. Another error i found and not mentioned in www was a safety
By Dieter Teuchert · #86110 ·
Re: 8901B Power level zeroisation
I got a boonton 8210 modulation meter dirt cheap a while ago.
By Henry Feng · #86109 ·
Re: HP854A Test Oscillator with worn out attenuator
Hi Alan Bill and Dennis. Thank you for your helpful replies.Unfortunately, the attenuator switch is not similar to the HP652a, it's a double 16 pole 10 way (balanced with 1 dB and 10 dB steps). Today
By Chris Hayes · #86108 ·
Re: Avantek SPP90 amplifier
Sorry Lex, I didn't reply with info back then, because I was under the impression that you had already found what you needed. The link you listed, from the title, seems to be exactly the databook I
By Ed Breya · #86107 ·
Re: HP854A Test Oscillator with worn out attenuator
Please find attached Attenuator Circuit Diagram. Whole Manual way too big too send. Sent: Monday, October 09, 2017 12:08 PM To: hp_agilent_equipment@... Subject: Re:
By bill.lauchlan171@... · #86106 ·
Re: HP854A Test Oscillator with worn out attenuator
I seem to have a box of parts mostly related to HP 652A. Do you have a Schematic to compare 652A to 654A Range Switch and Attenuator Switch? If you do, would you post the schematic for the 654A
By czelusniakd · #86105 ·
Re: Hp 70909A vs 70910A
Hi Adam, I was looking around and found this relatively recent thread on EEVBlog. I didn’t have time to read it in detail, but it looks like it may have some relevant info for
By Stan · #86104 ·
Re: Chinese-made reflow soldering ovens
SMD oven vrs a Hot plate I’ve not had much success with these low cost ovens, I’ve found they overheat and suffer from hot spots, I guess a case of you get what you pay for. I now use a hot
By harry · #86103 ·