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Review on Maximizing Efficiency: Pack 500MA 0-500A Glass Acting Powerhouse by David Blackstock

Revainrating 4 out of 5

Brought my old Radio Shack voltmeter back to life

My Radio Shack analog voltmeter broke and even blew the spare fuse in it. It worked great. Honestly a bit expensive for 5 small fuses. but so be it. I have plenty of spares if they fail in another 25 years.

Pros
  • Free for educational purposes
Cons
  • DK