Poll

IC component search

HP Parts 1820-1565
0 (0%)
HP Parts 1820-1565
1 (100%)

Total Members Voted: 1

« previous next »
Pages: [1]   Go Down

Author Topic: HP 5308A + 5300B Repair  (Read 966 times)

0 Members and 1 Guest are viewing this topic.

Offline GianniPastorinoTopic starter

  • Newbie
  • Posts: 2
  • Country: it
HP 5308A + 5300B Repair
« on: February 06, 2023, 10:11:26 pm »
Hi, I have an HP 5308A frequency meter, which I repaired in part. Fault on the power supply part. Replaced a 2n3906. Now it starts to work, but we have a problem on the B channel.
The integrated (IC) U2, part HP 1820-1565 is faulty. Unfortunately, I cannot find this part or even an equivalent.
I ask you if you have any news about it.
« Last Edit: February 06, 2023, 10:19:43 pm by GianniPastorino »
Logged
 

Offline Kim Christensen

  • Super Contributor
  • ***
  • Posts: 1818
  • Country: ca
Re: HP 5308A + 5300B Repair
« Reply #1 on: February 07, 2023, 01:44:35 am »
It might be a ECL comparator. Maybe a MC10E1651 or equiv... Pinout seems to match.
« Last Edit: February 07, 2023, 01:49:44 am by Kim Christensen »
Logged
 

Offline bdunham7

  • Super Contributor
  • ***
  • Posts: 8038
  • Country: us
Re: HP 5308A + 5300B Repair
« Reply #2 on: February 07, 2023, 01:54:44 am »
I believe that will be an MC1651L, check the datasheet to see if that seems right.  They're available from Rochester if you'd like 23 of them.  Or try your luck on eBay, Google, etc--they appear to at least exist out there.

https://www.datasheets.com/en/part-details/mc1651l-onsemi-37795823#datasheet
Logged
A 3.5 digit 4.5 digit 5 digit 5.5 digit 6.5 digit 7.5 digit DMM is good enough for most people.
 

Offline GianniPastorinoTopic starter

  • Newbie
  • Posts: 2
  • Country: it
Re: HP 5308A + 5300B Repair
« Reply #3 on: February 07, 2023, 05:11:00 pm »
Thank you very much, very happy.
Logged
 

Offline factory

  • Super Contributor
  • ***
  • Posts: 3153
  • Country: gb
Re: HP 5308A + 5300B Repair
« Reply #4 on: February 07, 2023, 09:45:19 pm »
The military part database (NSN) gives it as MC1651L too.

https://www.parttarget.com/5962-01-064-9563_5962010649563_MC1651L.html

David
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee