Electronics Transformer
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 QC Electronics 20 KVA Transformer  US $225.00
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 PRECISION ELECTRONICS TRANSFORMER 10382 NSN 5950 01 285 9062 MODEL PEI10382 US $225.00
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 Bicron Electronics Toroidal Power Transformer 5000 VA US $198.00
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 75w Electronic 12v low voltage transformer 10 PACK US $102.45
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 American Lighting 300 Watt 24v Electronic Transformer US $101.99
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 Stancor Electronic P 6379 Power Transformer US $98.75
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 NEW GOMI ELECTRONICS E2564 254 507 TRANSFORMER E2564 US $48.00
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 75w Electronic 12v low voltage transformer 5 PACK US $45.75
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 KEB Electronics Control Transformer 0090201 2049 WOW US $44.99
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 Juno Light T538SL Electronic Trac Master 12V Transformer US $30.00
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 WAC Class II Electronic Transformer Plug In Type US $30.00
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 Reta Electronics Control Transformer 0335 kVA Type EID 96b 96L1 US $29.99
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 Pacific Electronics Class 2 16 VAC Transformer UM 40T16 US $27.00
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 2 PACK NEW LIGHTING ELECTRONIC TRANSFORMER 75W 12V US $27.00
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 Hatch RS12 105 Electronic Transformer US $26.00
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 Trygon Electronics M0T 12 4 Transformer US $24.45
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 08 TRANSFORMER OUTLINE 15 16 120 VAC TYCO ELECTRONICS US $23.07
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 2 PACK NEW LIGHTING ELECTRONIC TRANSFORMER 60W 12V US $22.00
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 150w Electronic 12v low voltage halogen transformer US $20.00
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 GBE ELECTRONICS 200VA NORME CEI 146 TRANSFORMER US $19.99
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 TYCO ELECTRONICS 5SFT 401 CURRENT TRANSFORMER $1999 US $19.99
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 030A Input Current Electronic Voltage Transformer US $12.22
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Intro to Audio Transformer
A transformer is an electrical device that allows an AC input signal to produce a related AC output signal without the input and output being physically connected together. The transformer offers several advantages in coupling signals from one circuit to another. A transformer is considered large, heavy, and expensive but it continues to be the most effective solution in many audio applications. Audio transformers improve sound quality by removing interference from audio signals. Audio transformer is generally encased in a magnetic shield which is filled with an epoxy resin that provides insulation, protects the windings, and prevents vibration of the core material. Some audio transformers do not have a center tap, while other devices have a center tap in only the primary side, only the secondary side, or in both the primary and secondary sides. Transformers can be manufactured with multiple primary or secondary windings.
The two types of audio transformers are step up/ step down transformers and unity 1.1 transformers. The basic use of step up transformer is signal level compatibility, and impedance compatibility. Use of unity1.1 transformers are DC blocking, radio frequency interference and ground lift. In step up transformer, the primary and secondary have a different number of windings, thus they have different impedances. A unity transformer allows an audio signal to pass unmodified from the primary to the secondary while blocking DC voltage and radio frequency interference (RFI). Pros of audio transformer is to match impedances, to increase or decrease signal level by up to 25 db. While unity 1:1 transformer is used to increase signal level by more than 25 db. Audio transformer is used in audio devices like microphones, speakers, tape drives to transmit voice and sound signals. The transformers have wide frequency bandwidth, low distortion and noise suppression.
Audio transformers are recognized as wide band transformers. The services that are related to audio transformers are current sense transformers, gate drive transformers, RF transformers, signal transformers, switch mode transformers and telecom transformers. Current sense transformers are used to detect and measure current. Gate drive transformers are used in applications such as switching power supplies. RF transformers transfer energy from one circuit to another by electromagnetic induction. Signal transformers transfer information from one circuit to another by electromagnetic induction. Switch mode transformers are generally used mainly in switching power supplies and DC-DC converters. Telecom transformers are used in applications which require high bandwidths and fast switching speeds.
About the Author
Nisha is a Copywriter of electronic transformer. She written many articles in various topics.For more information visit:power transformer. contact she at currenttransformer@gmail.com.
Transformer or AVR? Which one should I use on my TV?
I used to live in the US but moved out to the Philippines. In the states the voltage out put is 110 but here in manila its 220. Because of this, all of my american electronics need transformers so they dont burn up or explode.
Which one should I use on my TV. A Voltage Regulator (AVR) or a transformer? What in the heck is the difference anyway?
You need a transformer.
The AVRs you're seeing do not do anything like a 2:1 voltage reduction. What they do is to take your AC power and make minor adjustments to get rid of surges and sags. They do this with an autotransformer with multiple taps. This usually is limited to about plus or minus 20% of the nominal line voltage.
By the way - if you look very closely at the data plates on some of your equipment, especially computers, you'll probably find that at least some of them will run on your local line voltage with no transformer. The notation you're looking for is something like: "100-240V, 50-60 Hz".
Oh, speaking of that... a few devices might not work well on the 50 Hz even with a transformer. The transformer corrects the voltage, but there is no economical way to convert the frequency; you'll just have to buy new stuff.
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