Oscilloscope Museum
  • Home
  • About
  • Contact
  • Collection A-F
  • Collection G-L
  • Collection M-R
  • Collection S-Z
  • Home
  • About
  • Contact
  • Collection A-F
  • Collection G-L
  • Collection M-R
  • Collection S-Z
Search by typing & pressing enter

YOUR CART

Picture
Manufacturer:    PRECISON Apparatus Co. Inc. (USA)
Model:                    ES-500A, S#11616
Vintage:                 1952
Purpose:                General Purpose, TV Service
Condition:            Working



Comments:
This oscilloscope was in the same hands since 1953, when it was originally purchased. Thanks to Jim Neal for allowing me to add it to the collection.
The unit appears to be in original condition except the power cord. The CRT is a 5CP1. Some potentiometers are difficult to move but work. The trace is bright and sharp. Of course, it is not calibrated, the amplifiers for Y and X are not linear, the timebase for synchronisation is far from being a proper sawtooth. But most important, the power supply seems to be stable / solid.


Documentation:
precision_es-500a_manual.pdf
File Size: 2791 kb
File Type: pdf
Download File

precision_catalog_1954.pdf
File Size: 2222 kb
File Type: pdf
Download File

precision_pricelist_1954.pdf
File Size: 268 kb
File Type: pdf
Download File

precision_es-500a_es-520_ad.pdf
File Size: 279 kb
File Type: pdf
Download File

Home

About

Copyright © 2013 - 2023