Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives :: Books
Support This Site: Contributors :: Advertise


It is currently Mar Tue 26, 2019 2:55 am


All times are UTC [ DST ]





Post New Topic Post Reply  [ 7 posts ] 
Author Message
 Post subject: HP 5345a -5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 12:44 am 
Moderator
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 22661
Location: Somers, CT
I'm thinking of upgrading my counter setup and I am looking a the 8355A with a 18GHz converter... are these reliable counters, any quirks or weaknesses?

_________________
Just because it can be done doesn't mean it should be done.


Top
 Profile  
 
 Post subject: Re: HP 5345a - 5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 1:43 am 
Member

Joined: Sep Tue 30, 2014 6:08 am
Posts: 3844
Location: Norfolk, VA
Peter Bertini wrote:
I'm thinking of upgrading my counter setup and I am looking a the 5355A with a 18GHz converter... are these reliable counters, any quirks or weaknesses?



Do you mean 5345A?

As for me, I've got an HP 5350B Microwave counter and love it - overkill for 90% of what I do, but should I need it....My 5345A has no plug-in....

The price was right - the 5350B and a 1742A scope for $60... The scope has yet to earn a spot on the bench - my Kikusui is so much better at everything.

_________________
Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


Top
 Profile  
 
 Post subject: Re: HP 5345a - 5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 2:03 am 
Moderator
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 22661
Location: Somers, CT
this what happens when typing on a lap top in the dark

I was curious if that model has known problems or if there are issues with NLA parts that are failure prone.

_________________
Just because it can be done doesn't mean it should be done.


Top
 Profile  
 
 Post subject: Re: HP 5345a -5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 2:23 am 
Member

Joined: Dec Sun 02, 2007 3:20 pm
Posts: 1710
Location: Fargo, North Dakota
I have an HP 5347A 20 GHz counter. It has a built in power meter, but I do not have the power sensor, so can't speak to that function, but the counter side of things are pretty good.


Top
 Profile  
 
 Post subject: Re: HP 5345a - 5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 3:35 am 
Member

Joined: Sep Tue 30, 2014 6:08 am
Posts: 3844
Location: Norfolk, VA
Peter Bertini wrote:
this what happens when typing on a lap top in the dark

I was curious if that model has known problems or if there are issues with NLA parts that are failure prone.


Well, there are some HP-custom amps in the input circuits. If they go, the only option is a donor unit or one of the $$$$ NOS ones. Other than that, ECL logic, mixed with TTL throughout. The +/- voltage regulators are older Motorola TO-66 units with 10pins - MC1463/MC1563 and MC1469/MC1569. Not hard to find, but pricey.

We had the 5345A as a standard for testing period and some frequency use in Navy labs. For higher frequency stuff, we went with measuring receivers - 8902A with all the bells and whistles.

Only failures we saw were the slide switches on the front - the little switch actuators became brittle and would snap off. Again, a donor unit. Electrically, they are a power drain in the off/stby mode - the crystal oven runs 24/7.

Heck, my 5350B, younger than the 5345A has more "hens teeth" parts. HP ran several years with short support cycles - then HP/Agilent went to board-level only on most instruments, with component level almost completely phased out.

_________________
Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


Top
 Profile  
 
 Post subject: Re: HP 5345a -5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 3:21 pm 
Moderator
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 22661
Location: Somers, CT
Is the 5345A a reciprocal counter? Fast updates? Also looking at the 5342A. Hard choices.

_________________
Just because it can be done doesn't mean it should be done.


Top
 Profile  
 
 Post subject: Re: HP 5345a -5355a -5356a opinion??
PostPosted: Feb Tue 12, 2019 6:19 pm 
Member

Joined: Sep Tue 30, 2014 6:08 am
Posts: 3844
Location: Norfolk, VA
Peter Bertini wrote:
Is the 5345A a reciprocal counter? Fast updates? Also looking at the 5342A. Hard choices.


I dunno - it has a variable sample rate control, and variable gate time, and does period measurements....

Data Sheet - https://www.keysight.com/main/redirecto ... =EDITORIAL

and it's also listed in most late-70s and 1980s HP Catalogs. The manual is on BAMA. http://bama.edebris.com/download/hp/5345a/5345a_6.pdf

_________________
Brian
"Capacitor Cosmetologist since 1979"
USN Retired 1984-2006 (Avionics/Cal)


Top
 Profile  
 
Post New Topic Post Reply  [ 7 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: breadbox, Peter Bertini and 13 guests



Search for:
Jump to:  




























Privacy Policy :: Powered by phpBB