AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/hamg-g0b12

What is the purpose of a power supply interlock?

Start playing free

  1. To stop changes that would void the warranty
  2. To ensure dangerous voltages are removed if the cabinet opens
  3. To shut down the unit if it becomes too hot

🔒 The answer is for AhaBulb members. Members see the answer, why it's right and the official sources for every card of Stuff Every General Class Ham Should Know, plus timed practice exams.

The first 50 cards of every test are free to play.

Play the free cards See membership

Like this card?
Play the game

References

  1. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf Checked 2026-10-11.
  2. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf Checked 2026-10-11.
  3. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf Checked 2026-10-11.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game

Ham RadioWhat does a power supply bleeder resistor do?Ham RadioWhich rectifier circuit uses two diodes and a center-tapped transformer?Ham RadioCompared with a linear supply, which is a characteristic of a switchmode power supply?

That's stuff everyone should know.