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HP 8664A signal generator repairability
Hi everyone, I recently purchased an 8664A signal generator with option 004 and 10. Got a decent deal. Unfortunately, it appears that UPS dropped the box and despite plenty of foam packing, the
By Sean Turner · #95116 ·
service manual 08110-91031
Hi, I'm looking for service manual 08110-91031 for the 8110A pulse generator. I searched but found nothing, if ever someone has a pdf copy or information that could allow me to get one, it would be
By Yves Tardif · #95115 ·
Re: HP 3563A (3562A) A9 FFT
Chuck, Thanks for that bit of wisdom.? I had checked filter caps, clock, and voltages before.? All within spec.? The electrolytic and bypass caps on the board are good.? I'll check all the fft
By morestainless <lancelotburt@...> · #95114 ·
Re: HP8563 HV supply repair
Hello, Thanks. Do you mean that I should test the CRT itself? I disconnected it completely and still saw the same problem so I guess/hope so far I'm dealing with a HV supply issue (fingers crossed).
By Staffan · #95113 ·
Re: HP 3563A (3562A) A9 FFT
Two things: 1) signature analysis can fail if clocks and dividers aren't working right. 2) clocks and dividers can fail if power supply bypass capacitors aren't low enough ESR. Before you condemn your
By Chuck Harris · #95112 ·
Re: I'm officially lost now with this 8753ES
Yes, PNG is great for screen shots. The problem with the 8753D/ES graphics is that the firmware guys didn't do the best job. They added a graphics dump, but they only implemented jpg. To make it
By pianovt · #95111 ·
Re: HP 3563A (3562A) A9 FFT
Anybody have a working A9 FFT board for this machine they would part with?? 3562A and 3563A? use the same board.? Signature analysis shows the global bus chips U511 - U518 are bad as are the two
By morestainless <lancelotburt@...> · #95110 ·
Re: I'm officially lost now with this 8753ES
Your best bet is to use PNG for this. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #95109 ·
Re: I'm officially lost now with this 8753ES
I was able to see Daun¡¯s image, thank you. The interesting thing is that my waveform starts somewhat higher. This may be very significant. I did verify that the analog bus is reading correct as the
By Peter Gottlieb · #95108 ·
Re: I'm officially lost now with this 8753ES
Thanks, Daun. I posted the image in the .pcx format because of the small file size and crisp rendering. It seemed fine at first, but now it looks like an icon. I guess groups.io is not set up for pcx.
By pianovt · #95107 ·
Re: I'm officially lost now with this 8753ES
Hi Peter It's an image file.? I was able to open it with Irfanview.?? I just saved it as a JPG for you. Daun -- Daun E. Yeagley II, N8ASB
By Daun Yeagley · #95106 ·
Re: I'm officially lost now with this 8753ES
What is the file you sent? Neither my iphone nor Win10 machine knows what to do with it. Peter
By Peter Gottlieb · #95105 ·
Re: I'm officially lost now with this 8753ES
I checked the YO drive on a couple of 8753ES (Opt 006). Both are very similar. The unit below has a alightly lower voltage at the start. The other one is right at 3.5V. Vladan
By pianovt · #95104 ·
Re: 8662A output oddity
Hi Jim I have not seen anything like this on my 8663A (not exact same instrument, but very similar). These generators has a are very modular build, with lots of cables between the boards. So it should
By Askild · #95103 ·
Re: My $25 "In Poor Shape" 3468A has arrived
John and others following this, The AZ(auto zero function) and Manual/Auto? functions are two different animals. The AZ function shorts the input to the DC conditioning amplifier, U101, before each
By [email protected] · #95102 ·
Re: E8357A upgrade questions
Caesar I am interested in getting the CPU and hard drive. Sent a PM. 1. Is there anything special I need to do for the install? I thought I read somewhere that my front panel needs to be changed? I
By Tom · #95101 ·
Re: 5385A error 52
In a few day , I will able to check the hp5386 with the Nationa GPIB PCMCIA card . I suppose the hp5386 is very similar to your counter. Im not shure to understand very well the problem : you must
By Maurizio IZ1MDJ · #95100 ·
Re: HP 83592 - Low output power on low bands
I might have a complete spare for a 592 that if I remember has level issues. I will have to look if you are interested. Pete wa2odo
By Pete Manfre <pmanfre@...> · #95099 ·
HP 83592 - Low output power on low bands
Hello does anybody have a spare part or old HP83592 A/B/C for sale ? It seems that the RF switch in the End Module HP SYTF ( Yig Filter ) is broken The part is 5086-7404 I dont think it is repairable
By Jempi ( ON7MA ) · #95098 ·
Re: HP 5335A power supply check
Hi Dan, Considering that your serial number is 2510A, you need the correct manual. I posted an updated manual on the KO4BB site, so feel free to get it there. The change in voltage on the power supply
By Joe / KN5U · #95097 ·