For example, in a hypothetical transformer to convert 100 volts to 140 volts, the primary could have 100 turns and the secondary 140 turns of wire. This transformer, with its 1:1.4 turns ratio, is represented in the upper diagram of Figure 12. P will flow since input and output power must be equal in the ideal case.
Material used & design specs. were kept as close as possible to the original part to preserve the stock "tone". Output transformers marked UPGRADE (below) allow for more versatility by added secondary connections that did not exist on the original units. "Click" on thumbnail photos below for a full size photo of each part. Lundahl Transformers is a world leading manufacturer of high performance transformers for audio applications. We make premium quality transformers for all applications in audio. In addition to our present range of transformers we have the ability to offer design variations and completely new designs upon customer requests.
The complete family of transformers from GE provide quiet, reliable transformer operation. All of the dry-type transformers through 1,000 kVA are UL listed under the requirements of Standard 5085 and 1561. In addition, each transformer meets the requirements of NEMA ST-20, 1992. Type IP, QB and QMS models are C-UL listed. These transformers operate in the 200 Hz to 15,000 Hz range, making them suitable for a broad application spectrum in the audio industry. These devices are used in line matching, telephone coupling, pulse trigger, driver, interstage, output, isolation and input applications. Operating Temperature Range: -20º C to 85º C Specification A good quality driver transformer for use with audio circuits. LT44 Dimensions: 16 x 20 x 16 mm Inputs: 20k Ohm Outputs: 2 @ 1k Ohm. Weber Speakers Homepage --- Loudspeakers, components, and equipment for the vintage musical instrument enthusiast. Amplifier and amplifier modification kits ...
Audio Transformer Impedance Matching. One of the main applications for audio frequency transformers is in impedance matching. Audio transformers are ideal for balancing amplifiers and loads together that have different input/output impedances in order to achieve maximum power transfer.