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Re: General opinion on 180 series scopes?
?? I had a 180 when I worked for -hp-, I don't remember it having a fan. I thought it was a pretty good scope. -- Richard Knoppow dickburk@... WB6KBL
By Richard Knoppow · #116214 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
Hi Dave Well, I am interested (especially since I spent some time over at Queensferry and knew some of them), and would *really* like to do it, but I just can't justify the large investment required.
By Daun Yeagley · #116213 ·
Re: General opinion on 180 series scopes?
No fans in mine, and I have several in both scope & spectrum analyzer configurations. Common failures are the HV resistors around the CRT, and the output stage resistors in the deflection amplifiers.
By Ken Nener · #116212 ·
Re: General opinion on 180 series scopes?
Hi, my 180AR doesn't have any fan for sure. Also no fan in any of the 182B/C/T displays that I happened to have seen in the past. HTH Frank IZ8DWF
By Francesco Messineo · #116211 ·
Re: General opinion on 180 series scopes?
Greetings, I owned a 180A with 1801A and 1821A plug-ins and I do not recall any fan. Additionally, there is a photo showing the 180A without covers or plug-ins in the 1967 HP catalog and no fans are
By ken chalfant · #116210 ·
Re: General opinion on 180 series scopes?
As far as I remember ... there were no fans in the 180 series 'scopes or their plug-ins. Could anyone confirm this ? Joel Setton
By Joel Setton · #116209 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
My logistics would be simple AF. One parcel per person. If the weight is below 2KG, shipping would be 25 EUR per snout with Slovak Governmental, tracked. Austrian post would cost more. Tam With
By Tam Hanna · #116208 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
If I could get to Slovakia, I would do it. Slovak Post is cheap. Or, maybe, JewPost in Austria. They consider the USA as a "semi-local" destination which quite cheap rates. But I have no ETA for
By Tam Hanna · #116207 ·
Re: A homemade diode power sensor for HP meters
Make on a lot of sense, please some diagram for it.
By Francesco · #116206 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
Well, my only thought is "Yes, that's a pretty significant burden". ;) -Dave
By Dave McGuire · #116205 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
I am. I’m not sure how the logistics of that would work, though, specifically the burden placed on the person who agrees to handle receipt and distribution of the books. Thoughts? DaveD
By Dave Daniel · #116204 ·
Re: General opinion on 180 series scopes?
HP-180-series ‘scopes have passed through my hands but I’ve never collected one. They were HP’s first all-solid-state high-end oscilloscope. Components are densely packed into the chassis and
By Jeremy Nichols · #116203 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
So once again, is anyone in the US interested in doing a bulk-purchase-to-US arrangement? -Dave
By Dave McGuire · #116202 ·
Re: A homemade diode power sensor for HP meters
How about an op-amp configured as an inverting amplifier? -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #116201 ·
Re: A homemade diode power sensor for HP meters
Hello Tobias, some information for your diode power sensor please. Best regards. Francesco. G7OYO
By Francesco · #116200 ·
Re: A homemade diode power sensor for HP meters
The output of the detector AD8318/17 is positive any idea to make it negative? Please diagram I'm one geriatric old man. Regards. Francesco. G7OYO
By Francesco · #116199 ·
Re: A homemade diode power sensor for HP meters
Thank you Dave for the imput to this post, I'm aware there is some difficulty fot the detectot part on the power head. I hope if there someone want share is exsperience and like give some sugestion
By Francesco · #116198 ·
Re: General opinion on 180 series scopes?
Currently eBay is showing 1804a 4 channel plugins for around $20-50. The 1804 does 4 channels but no math. The 2 channel units have addition and the specs say when one Chanel is inverted it acts like
By Steve Holland · #116197 ·
Re: HP 180A and 1804A manuals ?
Same thing happened to me years ago. Replaced the transistor and all was well. Until it was in storage, then started up and it died the same way. I’ll have to fix it the same way, but perhaps the
By Steve Holland · #116196 ·
Re: Three-volume Book about Hewlett Packard South Queensferry history to be available soon
The reason for this timeline is that subscription is possible until June 12, 2021, then production starts. BTW: expect to get a heavy packet: the books are not regular book size, it is 1200 pages *A4*
By ChrisBeee · #116195 ·