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AUDIO TRANSFORMER DESIGN FOR TUBE AMPLIFIER WITH IMPR…
http://www.standardsuniversity.org/wp-content/uploads/audio_transformer_design_tube_amplifier_pichkalyov_final_paper.pdf#:~:text=The%20output%20transformer%20in%20a%20single-ended%20tube%20amplifier,example%2C%20produces%203.5W%2C%20with%20a%205%20kOhm%20impedance.
Audio Output Transformers | Arrow.com
https://www.arrow.com/en/categories/magnetics/audio-output-transformers
Audio Transformers Output Transformer: 31.11:1: 374.1: 1500Vrms: 4K: 4/8/16: 185(Typ) 0.4(Typ) Wire Lead: 7: ±1dB-40~105: No: No: NO: 1760F Audio Transformer 29.19:1 1500Vrms 120Ohm Prim. DCR 0.171Ohm/0.245Ohm/0.476Ohm …
Audio Transformers - Hammond Mfg.
https://www.hammfg.com/electronics/transformers/audio
Classic Tube Output Audio Transformer Overview. Universal Single Ended Tube Output. Audio. 125SE Series. Universal Push-Pull Tube Output. Audio. 125A-125E Series. Tube Output (25 - 75 Watts) Single Ended - HI-FI. 1627-1642 Series. General Replacement Tube Output (8 Watt) Push-Pull. 125H Series. General Replacement Tube Output (8 Watt) Push-Pull. Audio. 125J Series
Audio Transformer - Transformers - Electronics Surplus
https://www.electronicsurplus.com/transformers/audio-transformer
Audio Transformers - Learn About Electronics
https://www.learnabout-electronics.org/ac_theory/transformers04.php
In the 100V line speaker system, a transformer steps up the audio output signal voltage to 100V so that the output current for a given power is low. The resistance on long cables between the amplifier and loudspeakers will attenuate this low current signal much less than if the current were left at its normally high level.
Audio transformers • Tube output transformers • Lundahl ...
https://www.lundahltransformers.com/tube-output/
Amazon.com: audio transformer
https://www.amazon.com/audio-transformer/s?k=audio+transformer
Audio Transformer - Engineers Garage
https://www.engineersgarage.com/audio-transformer/
Audio output transformers are used when load impedances are low, as in line drivers, while audio input transformers are used when load impedances are high, as in line receivers. Output transformers have very low leakage inductance in order to maintain high-frequency bandwidth with capacitive loads.
Audio Transformers
https://www.jensen-transformers.com/wp-content/uploads/2014/08/Audio-Transformers-Chapter.pdf
Audio transformers must utilize both high-permeability cores and the largest practical number of coil turns to create high primary inductance. Coil inductance increases as the square of the number of turns and in direct proportion to the permeability of the core and can be approximated using the formula: L = 3.2 N28 ì A / 10 R
Output Transformers - DIY Audio
http://www.diyaudio.vn/DAD_OPTs.htm
Output Transformers. Audio Note™ valve output transformers are arranged into three catagories in order to offer the best possible outputs at different price points, fall into the following: Group A. Economy range, where the price/quality relationship is carefully calculated to ensure audio quality in a compact package. The quality criteria ...
How to test an audio transformer | All About Circuits
https://forum.allaboutcircuits.com/threads/how-to-test-an-audio-transformer.168870/
Nope. Output transformers were used 64 years ago because they were needed to match the high output impedance of vacuum tubes to the low impedance of a speaker. To produce power, a vacuum tube used a wasteful heater and a very high voltage with a low current. Transistors use a low voltage with a high current therefore are already a very low impedance.
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