![]() ![]() Simplest FM Transmitter-Modulation Circuit with BF494 radio frequency Check Details Fm transmitter circuit simple diagram easy bug 500m radio homemade station Transmitter transistor circuits stable transistorsBest fm transmitter circuit diagram using bc547 Fm transmitter circuit diagramTransmitter transistor. ![]() Transmitter circuit fm diagram project kits figLong range fm transmitter circuit,2 km 88-108 mhz vhf Fm transmitter circuit stereo chip single diagram circuits audio wireless electronic hobby gr next ba1404 modulator amplifier composite two diagramsFree wiring diagram: 500 km fm transmitter circuit diagram. ![]() ![]() Electronic transmitter fm telephone circuit schematic diagram schematics circuits electronics wiring seekic rf gr next board Electronic hobby circuits: stereo fm wireless transmitter circuit diagram Also, final version uses BD139 as Vbe multiplier rather than MPSA42 as shown in Tina diagram.Simple fm transmitter circuit schematic long range, short range using Transmitter fm circuit diagram stage km rf schematic vhf radio scheme circuits amplifier oscillator transistor frequency power built bf200 around Fm transmitter tracking circuit schematics diagram schematic radio audio circuits elcircuit tracer gr next electronic Sensitive FM Transmitter Circuit | Electronic Schematic Diagramįm transmitter circuit radio circuits antenna simplest diagram frequency transistor schematic project audio modulation bf494 power physics notes Simple fm transmitter circuit based on two transistors. Note that I substituted 20k for 22k and 550R for 680R for resistors as shown in silkscreen. # AN INDEX OF APEX AUDIO AMPLIFIERS #įH9 fully built and tested by xrk971 using Sonal Kunal's Gerber files: I will add links to the above items as time permits and as people provide feedback. Here is what I have so far for the Index. Update June 20,2016: Miro provided a nice table of 68 schematics here A Directory of Apex Audio Amplifiers - diyAudio Thanks in advance for contributing to this index, and I hope you all find it helpful.įinally, a huge thanks to Apex Audio for his tireless creativity and help in giving us so many great sounding designs to play with. A link to measured performance (FFT distortion plots, O-scope traces, etc.) A link to a photo of an actual amp that has been reduced to practiceħ. A link to the LTSpice/Multisim/TINA simulation file if availableĦ. A link to the PCB layout sprint file or Gerber files if availableĥ. A link to the post or location where the amp design is discussed (either first mentioned or a key development where a working design is produced).Ĥ. An image of the schematic as drawn by Apex Audio (link to the image is fine), or if the amp is a mod by another member, a link to the member's schematic. Name of the amp, ie, "AX11TEF" and rated watts and a note if special application like (uses lateral FETs or is fully-symmetric, etc)Ģ. When posting a suggestion for me to add to the index, please include the following in this order of importance:ġ. From time to time, I will go in and update Post #1 to be an index pointing to the locations where the PCB layouts are located, the BOM, photos of working examples, etc. So it would be helpful if other members can point out designs that need to be added by posting here. The problem is, there are amps named FXn, Bxn, An, Bn, ANn, etc. To start things off, I have included below an initial list of amp designs that I could find using the search feature (I simply did a search for "AXn" where n is an integer representing the number of active devices). These are the original images as posted by Apex Audio. Note: click "Reload" page on your browser to auto scale the rather large image schematics. There are also several threads by Apex that have PA amps, etc - please consider providing links to those amps as well. It is my hope that this thread will become a repository for Apex Audio's amplifier designs that is in an easily usable and searchable format. The designs mostly come from the enormously popular (and large) thread 100W Ultimate Fidelity Amplifier - diyAudio which has become a bit unwieldy to use as a reference for designs. This thread is a consolidation of the numerous amplifier designs that member Apex Audio has generously provided the DIYA community over the past several years. ![]()
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