HISTORY:
Sustainability is the name of the game! Anything (that has been tested and still functioning properly) should be repurposed creating saving in wasted Ee and reducing the poisoning our environment when items are buried in the earth at the local tip needlessly.
Never heard of Ee? It is a concept that creates a measurement of ALL things (not just electronics) that humans have made and the energy used in obtaining the raw material, processing the materials right through to a finished product and even should include the shipping of the item to the distributors/retailers.
If you would like to know more about Ee values, please take a look HERE
It is IMPORTANT to read my information page about both new AND old stock electrolytic capacitors ... please go HERE
SPRAGUE of course is synonymous with high quality American engineering, sadly in 1993 many of their capacitor product range was sold to Vishay
Ex equipment "pull" (precision German test equipment)
SPRAGUE - Aluminium Electrolytic Capacitor
Made in USA
ATOM Series
Model: TVA1907 0430H532
Value: 30uF
Working Voltage: 500V DC
NOTE: Rated to 65C not 85C or heaven forbid, 105C
Axial wire leads
DIMENSIONS:
Bright Blue external insulating plastic around the main metal body
Top side vent plug (for safety)
41.75mm height x 25.75mm diameter
Wire leads are each 24mm in length, bent at right angles (unchanged from the installation) x 0.95mm tinned wire (quite stiff)
Weight: 50g
COSMETIC CONDITION:
USED Tested
CLEAN
Wire leads are clean and I have left the original coloured coded insulation on these leads
NO "bulges" or other Aluminium can deformities and the top safety valve has never "popped"
TESTING:
Considering the age and the fact this capacitor has been in service once, I undertook a basic capacitance test. To gain a more accurate measurement I have preformed this capacitor for a few hours, discharged and then tested ...
Measured Capacitance: 35uF ESR: 0.82 Ohm
Quite frankly I was stunned, I expected at best a swing away from the nominated value around 20~30% but this capacitor is currently sitting at around 15% - that's pretty impressive for an older cap, but then it is Spraque after all!
The capacitor has now had the terminals shorted (to prevent voltage buildup in storage - unlikely but then ...), then the capacitor completely wrapped in bubble-wrap and sealed within a plastic packet ready for a new workshop/piece of equipment to live in!
