Permalloy 600:600 audio signal isolation transformer passive preamp, control the size of the sound and output to the next level.
Two-way input selection, passive output of one output: suitable for CD, MP3, MP4, player, deck, LP and other audio input. After the two-way signal input is selected by the switch, the transformer is isolated via the permalloy audio signal, and then output to the next stage after the sound is controlled by the volume.
In the audio circle, the predecessor who does not need electricity is arbitrarily called "passive preamp". Since the function is located at the front end of the audio, most of the commercial and DIY groups regard them as part of the predecessor.
The front panel is assembled by six RCA sockets, signal selection switches, Japanese ALPS 16 iron double-connected 100K脳2 potentiometers, and permalloy audio isolation transformers.
This line does not need electricity, it can control the sound volume of the signal, the copper foil is reasonable, the double-sided large-area copper shielding, the aluminum shell grounding shield, very quiet and no noise and hum, easy to use.
Ingredients: double-sided PCB thick copper foil (80mm 脳 70mm). Dual 100K脳2 iron shell volume potentiometer. Permalloy audio signal isolation transformer, Nissan Fujitsu metal handle six-legged toggle switch (internal switch contacts silver plated, signal lossless transmission), 90-degree six-bend connection and two housing fixed solder feet directly fixed on the circuit board Very firm and silky.
Permalloy 600:600 audio signal 1 to 1 isolation transformer, imported permalloy material winding, can be filtered to eliminate AC noise interference, digital flavor nemesis.
The transformer core adopts imported EE25mm permalloy material with a content of more than 85%. The iron core is white and bright and reflective, and can be recognized at a glance. Core size: length 25.5mm 脳 height 19mm 脳 stack thickness 7mm, sheet thickness is only 0.2mm as shown below. The high-purity oxygen-free copper enameled wire is wound to make the audio signal better transmitted.
Affirmation: Nissan Fujitsu toggle switch is a second-hand disassemble.
The front panel is very convenient to use. It only needs to be connected in series to the sound source (such as CD, MP3, etc.), and adjust the sound source, preamplifier, and post-level sound to moderate, or the front-level control to attenuate the volume. Suitable for use with any transistor, amplifier and combiner.
The permalloy signal step-up transformer has better performance, pure and delicate sound, luster and luster, and the bandwidth is very wide. 10HZ to 60KHZ is a linear frequency response. After adding this transformer to the line, the depth of the sound field is increased and the sound quality is better transmitted.
This is completed unit with chassis, If you only need the board please contact us.
Output power: 0W+0W
Size: 80X80X46mm
Impedance: 600:600
Double sided PCB plate thick copper foil: 80 x 70mm
Transformer core size: 25.5 x 19 x 7mm
1pcs锛?/span>90 days after receipt of order 锛?nbsp;
