Products > Test Equipment
HP 53310A Modulation Domain Analyzer -frequency microscope-
maxwell3e10:
Here is the summary of the HP53310 frequency standard deviation for counting its own internal reference as a function of the time sampling interval (called "Interval at center"). As shown in this post it is actually equal to 1/3 of the normal gate time for a counter: https://www.eevblog.com/forum/metrology/hp53310a-and-other-counter-allan-deviation/msg2342007/#msg2342007
EDIT: The plot is updated. After comparing two HP53310 and fixing the power supply in one, the results are better
kj7e:
Short video showing how the MDA can be used to tune a reference oscillator more quickly than with a counter.
https://youtu.be/ly6b49ZyaRg
kj7e:
--- Quote from: TurboTom on January 30, 2017, 08:37:33 pm ---Here's how to install option 001 (extended memory) in a 53310A that came without it (if anybody's interested to upgrade his MDA):
You need 4 Cypress CY7C194-25PC (or Hitachi HM6708P-25 or Motorola MCM6208P25 or equivalent) 64k*4 SRAM chips (DIL24 casing) and one 2.54mm jumper.
Disconnect the connectors from the CRT display board and lift the board in its guide a few centimeters so the sockets lalbeled U68~U71 become accessible. Insert the SRAM chips in the sockets. Move the two jumpers XW2 and XW7 from the position "16k" to "64k". Place a jumper on XW8/SEL1. All these jumpers are located in close proximity of the SRAM sockets and can be easily accessed with the CRT board lifted.
After this, slide the CRT board back down and reconnect all the connectors. That's it, now your MDA should report the extended memory option installed.
Have fun,
Thomas
--- End quote ---
Worked perfect, thanks Tom!
Edit: I have 4 extra NOS Cypress SRAM chips if anyone else is would like to add the extended memory.
bitseeker:
--- Quote from: kj7e on April 23, 2019, 01:05:05 am ---Edit: I have 4 extra NOS Cypress SRAM chips if anyone else is would like to add the extended memory.
--- End quote ---
Yep. I just don't have a 53310A for them to go into, yet. But it's on the shopping list.
kj7e:
For power supply repair and parts info, I posted some photos and attached an xls spreadsheet with Digikey part numbers here;
https://www.eevblog.com/forum/repair/hp-53310a-power-supply-troubles/msg2365593/#msg2365593
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version