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Maplin Project Book 51 - World Radio History
https://worldradiohistory.com/UK/Mapelin/Maplin-Project-Book-51.pdf
RB300 arm and Audio Technica 007 cartridge, this feeds a home made head amp (based around the LT1028 Op -amp, better than my Audio South transformer, but that's another project). The preamp (valve) is a heavily modified Audion Premier. The speakers are a temporary pair of LNB 7s (a 70 litre transmission line design). Audio Note silver interconnects
Audio Transformers - Learn About Electronics
https://www.learnabout-electronics.org/ac_theory/transformers04.php
Audio Frequency (AF) Transformers work at frequencies between about 20Hz to 20kHz and are used in audio amplifier circuits, they were essential in valve (tube) designs for matching the high impedance outputs of theses amplifiers to low impedance loudspeakers, but transistor amplifiers have much less need for output transformers.
Audio Transformer, its Types and Impedance Ratio
https://circuitdigest.com/tutorial/audio-transformer
Audio Transformer creates isolation between the output speakers or audio circuitry with the transformer’s input side amplifier system. The primary and secondary winding turns ratio fixed to 1:1. Due to this, the transformer does not alter the voltage or current level. It does only create isolation between the Input amplifiers with the output speaker system.
Valve Audio Amplifier Mains Transformers for HT Supplies
https://vvttransformers.co.uk/ht_tx.htm
equivalent to obsolete Maplin XP27E: Mains 10-0-200-220-240V 50/60Hz Double Insulated HT Output 240 VRMS 100mA Heater 6.3 VRMS 1.5 Amp: VTH15864-1100 Data Sheet: VTH15864-1200 Data Sheet: VTH15864-1300 Data Sheet: VTH15864-1440 Data Sheet: VTH14670 range (Previously VTH133) Mains 10-0-200-220-240 50/60Hz Double Insulated Full Wave 250-0-250 ...
Audio Transformer - Engineers Garage
https://www.engineersgarage.com/audio-transformer/
Audio transformers are designed for audio range of frequencies, i.e., for frequencies ranging from 20 Hz to 20 KHz and are used primarily in audio circuits. Fig. 1: Representational Image Showing Insides of a Typical Audio Transformer. The important functions of an audio transformer are: 1. Impedance Matching.
Radio shack Kit Question on transformer | Electronics …
https://www.electronicspoint.com/forums/threads/radio-shack-kit-question-on-transformer.8714/
Maplin do a pair of audio transformers - LT44 & LT77, one is a driver with single primary/CT - secondary, the other is for O/P, CT - pri' & single LS impedance secondary. Dec 31, 2005 #6. UFO Joe Guest. I've got tons of those kits, going back 30 years.
Amazon.com: audio transformer
https://www.amazon.com/audio-transformer/s?k=audio+transformer
Small audio transformers? | All About Circuits
https://forum.allaboutcircuits.com/threads/small-audio-transformers.79643/
Audio output to a small speaker: General Electronics Chat: 5: Nov 6, 2020: I: Small Audio Transformer to amplify low frequency sine wave: Analog & Mixed-Signal Design: 10: Sep 16, 2015: E: the operation of a junction transistor in the small-signal audio amplifier: Homework Help: 2: Jun 14, 2015: Z: Small Audio Playback Machine: General ...
High-speed 100W amplifier design
http://soundmovements.co.uk/diyaudio/Stochino_amp.html
An alternative solution is to use a high-quality audio transformer such as Jensen's JT-11P-1, which would give isolation both from DC offsets and ground noise, as well as providing a balanced input as part of the bargain. This, of course, would not remove internal DC offsets, so is only an appropriate solution when the latter are eliminated.
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https://www.maplin.co.uk/
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