A5500 DIY Tube Microphone

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A5500 DIY

diy tube microphone

Large Diaphragm Tube Condenser DIY Microphone

The ultimate DIY microphone kit! 

$156.95

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*Additional shipping charges apply outside US.

Get your hands on the first ever professional tube microphone do-it-yourself kit! 

This kit includes everything you need to build a professional large diaphragm tube condenser microphone.

Use the included components for an excellent sounding tube microphone. Or for those more adventurous DIYers, swap out components and create your own custom high-end tube microphone. Then sell it for $1000 or more!

15 day love it or send it back policy*

This kit is intended for intermediate to advance users. 

You should understand intermediate electronics and assembly techniques.

Not included with this kit are step-by-step instructions on how to assemble. You are expected to understand and read schematics and a circuit layout, solder, use a multi-meter etc.

However, the circuit is rather simple and clearly marked.

Approximate Specifications after assembly:

Type: large diaphragm pressure gradient vacuum tube condenser
Frequency response: 20Hz to 20 kHz
Polar Pattern: cardioid
Sensitivity: 14mV/Pa (@1kHz, 74dB SPL)
Output impedance: <200 ohms
Equivalent noise level: <17dB-A Max. SPL (@0,5%): 130dB

diy vacuum tube microphone kit

Kit Includes

Unpainted brass microphone body, Head-grill assembly, internal mounting cage assembly to mount circuit board, capsule, transformer and connector housings. 1 - Fully assembled power supply
1 - Power cable for power supply
1 - 7-pin tube microphone cable
Schematic, circuit board layouts, print out of assembled circuit
Components included

1 - 32mm/1in large diaphragm pressure gradient capsule (assembled)
1 - Plastic capsule mount
1 - Pre-amp circuit PCB
1 - Tube socket PCB
1 - Vacuum tube, 12AX7
1 - 9-pin tube socket
1 - 7-pin XLR male connector
2 - Ceramic insulators for both ends of C4
1 - Film Resistor,  1/2 W 10KΩ
1 - Film Resistor,  2W 100KΩ
2 - Film Resistor,  1/2 W 270KΩ
2 - Resistor, 51M
1 - Resistor, 200M
1 - Film Resistor, RJ 1/2 W 3KΩ
1 - Resistor, 1 KM
2 - Capacitor,  1μ/400V
1 - Capacitor,  1μ/250V,NP
2 - Capacitor,  .022μ/630V
1 - Capacitor,  1000 pF/630V
1 - Capacitor,  100μ/25V
3 - Capacitor,  0.1μ/63V
1 - Capacitor,  1000μ/10V
1 - Ceramic Capacitor, 2pF
1 - Transformer, turns ratio 10:1

build your own tube microphone

tube microphone schematics

tube microphone circuit layout tube microphone tube circuit
 

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