A HP Pulse Generator. «on: November 07, , am». Removed. «Last Edit: January 21, , am by Satbeginner». Logged. Find great deals for HP A Dual Output Pulse Generator mhz. Shop with confidence on eBay!. Find great deals for HP Hewlett Packard a Pulse Generator. Shop with confidence on eBay!.
|Published (Last):||9 December 2006|
|PDF File Size:||6.79 Mb|
|ePub File Size:||3.3 Mb|
|Price:||Free* [*Free Regsitration Required]|
Welcome to Azur Electronics. Front view showing damage and staining.
Repair HP A Pulse Generator
Rear view in good condition. The A looks complete, 808a with feet and rear corners. Obvious damage to the front panel though, including: Front and Rear Panel Assemblies. Lots of staining and corrosion inside. Front Panel assembly removed by unsoldering variable resistors, as most of these have their control knobs 882a on. The front extrusion was badly corroded and discarded for a spare unit. After trying various methods, all but 3 of the control knobs refused to budge. Resorted to cutting them off just behind the allen screws and it needed an electric saw to do the job.
The Front Panel cleaned up quite well considering the state it was in. A testament to HP paint quality!
Most of the slider switches were dirty. These rely on specific PCB tracks together with contact sliders that are held by the rivited on plastic runners and retaining 80882a. I had some spares from other units, but these were all different with contacts arranged left facing or edge facing instead of right facing.
Amazing that so many different types exist. Correct contact sliders on the left hand side of the photo. The slider switches were all carefully cleaned up and reassembled. The switch circuits were all buzzed out. There may be some intermittancy to watch out for and the External Input slide switch is slightly damaged.
The other 2 or 3 position slide switches were also cleaned up and buzzed out ok, as was the Power switch. Surprised that they still work! A replacement Manual switch is required.
Partly reassembled for testing. Rear Panel Voltage Selector and Fuse checked ok. Remaining PCB’s refitted one by one and power rails and consumption checked. Trig Output with repetition rates from 1kHz to MHz ok, although a negative going 0.
Agilent / HP 8082A
No pulse outputs though. There are 4 outputs from the A3 Repetition Rate Generator and only 2 are working. A3 Repetition Rate Generator. The fault was traced to A3 U2, this is a special HP integrated circuit part number and probably unobtainium! 88082a U1 is also a HP special Need to find one of these ICs if possible. Testing produced the same result though! I had assumed that all 4 outputs were the 8082s.
HP Hewlett Packard 8082a Pulse Generator
So A3 was working after all. A4 with piggy back A8 PCB. No output at all from the front panel BNC’s. Not HP’s best design for ease of maintenance.
Considering all the factors, I decided to scrap this Unit for spare parts. See HP A Parts for details. HP A Pulse Generator.