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Power transformers: top picks

AI-generated summary · updated August 6, 2026 · verify details before purchase.

  1. Hammond Manufacturing 1182P36
    Best overall Hammond Manufacturing

    Hammond Manufacturing 1182P36

    4.5/5 $121.04

    A high-quality toroidal power transformer with excellent voltage regulation and low noise, ideal for audio and precision electronics.

    • Low hum
    • Excellent regulation
    • Compact design
    • Higher cost than EI types
  2. Triad Magnetics FS12-090
    Best budget pick Triad Magnetics

    Triad Magnetics FS12-090

    4.6/5 $37.26 Only 1 left

    Affordable and reliable split-pack transformer with dual secondaries, great for hobbyist projects.

    • Very affordable
    • Dual secondaries for flexibility
    • Reliable brand
    • Not toroidal
    • Limited power
  3. Best for high power

    Antek AN-2222

    4.7/5 $30-$40

    200VA toroidal transformer with dual 22V secondaries, suitable for amplifiers and high-current applications.

    • High power capacity
    • Low profile
    • Efficient
    • Large footprint
    • Heavy
  4. Hammond Manufacturing 166G24
    Best for general purpose Hammond Manufacturing

    Hammond Manufacturing 166G24

    4.4/5 $55.14 Only 12 left

    Chassis-mount transformer with 24V secondary, widely used in industrial control and lighting.

    • Easy mounting
    • Good value
    • Multiple mounting options
    • Audible hum at full load
    • Limited VA
  5. Signal Transformer ST-4-24
    Best small form factor Generic

    Signal Transformer ST-4-24

    4.3/5 $34.99

    Compact PCB-mount transformer with 24V secondary, perfect for low-power electronics projects.

    • Small size
    • PCB mountable
    • Quiet operation
    • Low power rating
    • Limited voltage options
  6. Best for audio applications

    Talema 70014S

    4.5/5 $25-$35

    Toroidal transformer with low magnetic stray field, widely used in high-fidelity audio equipment.

    • Low noise
    • Low stray field
    • Good for sensitive circuits
    • Expensive
    • Limited availability

Buying advice

When selecting a power transformer, consider factors such as voltage rating, current capacity, mounting style (chassis, PCB, or toroidal), and efficiency. Toroidal transformers offer low noise and compact size but are more expensive. For high power applications, choose a transformer with adequate VA rating and good regulation. Always verify that the product is listed under 'Industrial & Scientific > Electronic Components' to ensure it meets your needs.

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