220V to 12-0-12VAC 3A EI Center-Tapped Transformer (72VA)
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Microohm | Transformer 220V to 12‑0‑12VAC 3A EI Transformer (Center‑Tapped) | 230 EGP310 | View in store |
Price history
Lowest daily price, last 90 days
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Lowest price recorded: 230 EGP
About this product
A 3A (about 72VA) EI-core center-tapped transformer with a 12-0-12V AC secondary, designed to produce positive and negative rails in linear supplies. The listing estimates about 15.6V DC per rail at no load after bridge rectification.
Specifications
- Core type
- EI
- Primary voltage
- 220 V AC
- Secondary voltage
- 12-0-12 V AC
- Current rating
- 3 A
- Power rating
- About 72 VA
- Center tap
- Yes
- Estimated DC per rail after bridge (no load)
- About 15.6 V
Frequently asked questions
What is the price of 220V to 12-0-12VAC 3A EI Center-Tapped Transformer (72VA) in Egypt?
220V to 12-0-12VAC 3A EI Center-Tapped Transformer (72VA) currently costs 230 EGP in Egypt.
Where can I buy 220V to 12-0-12VAC 3A EI Center-Tapped Transformer (72VA) in Egypt?
220V to 12-0-12VAC 3A EI Center-Tapped Transformer (72VA) is available from Microohm. Compare the offers above to find the best price.
How do I get ± rails from this transformer?
Use the center tap as 0V. Rectify each outer leg with a diode bridge or use a center-tapped full-wave rectifier, then filter each rail with capacitors. Regulators can be added for stable voltage.
Why is the DC per rail about 15.6V?
12V AC RMS is about 17V peak. Subtracting roughly 1.4V for two diode drops gives about 15.6V DC at no load, which matches the listing estimate.
