Products > Test Equipment
HP 70K/HP 70000 Modular Measurement System Thread
Raindog:
Greetings all. I have been piecing together a HP 70K series spectrum analyzer for my small home test and measurement lab. So far things are working, however the battery in the HP 70900A local oscillator is bad, does anyone know where I can get a suitable replacement battery (i.e. Digikey / Mouser)? I can open the oscillator and look but I'd rather open it just once when changing it out. I also have a bad battery in the HP 70206A display unit but that one is ordered and I'm waiting for it to show up. Despite these issues I really like the modular approach to these instruments. Many leaps and bound over my other spectrum analyzer (HP 853A w/ HP 8557A).
0culus:
--- Quote from: Raindog on May 08, 2020, 02:11:57 am ---Greetings all. I have been piecing together a HP 70K series spectrum analyzer for my small home test and measurement lab. So far things are working, however the battery in the HP 70900A local oscillator is bad, does anyone know where I can get a suitable replacement battery (i.e. Digikey / Mouser)? I can open the oscillator and look but I'd rather open it just once when changing it out. I also have a bad battery in the HP 70206A display unit but that one is ordered and I'm waiting for it to show up. Despite these issues I really like the modular approach to these instruments. Many leaps and bound over my other spectrum analyzer (HP 853A w/ HP 8557A).
--- End quote ---
I'm not super familiar with these instruments (I prefer the menu-less UX of the 8568/8566 personally), but have you tried looking for manuals? Keysight hosts tons of manuals for obsolete HP and Agilent gear, for example.
Raindog:
I have been going to the Keysight and downloading all the manuals I can find for the modules I have and future modules I will install later. The documentation for the HP 70900A module is pretty detailed but I haven't been able to find schematics or parts lists (yet). I figured I'd at least post the question here since someone somewhere has had to deal with this issue before. My first choice was the HP 856x series but had a difficulty finding one that wasn't all beat up, had previous calibration stickers removed improperly or wasn't over priced. But all in all I like the 70k for the flexibility.
0culus:
--- Quote from: Raindog on May 08, 2020, 05:56:52 pm ---I have been going to the Keysight and downloading all the manuals I can find for the modules I have and future modules I will install later. The documentation for the HP 70900A module is pretty detailed but I haven't been able to find schematics or parts lists (yet). I figured I'd at least post the question here since someone somewhere has had to deal with this issue before. My first choice was the HP 856x series but had a difficulty finding one that wasn't all beat up, had previous calibration stickers removed improperly or wasn't over priced. But all in all I like the 70k for the flexibility.
--- End quote ---
Unfortunately the 70000 series came at a time when CLIP manuals were becoming rarer. I’d be surprised if some manual doesn’t tell you what battery it needs though.
I was lucky enough to find a NOS 8566B. Feel free to PM if you want pics. Don’t want to derail your thread.
0culus:
@Raindog: https://groups.io/g/HP-Agilent-Keysight-equipment/message/83947?p=,,,20,0,0,0::Created,,70900A+battery,20,2,0,24815627
I may have found your answer.
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