Skip to content

Everything you need to know about Taconic RF-30A2 PCB

If you are a fan of electronics, you will want to read this post. This is an article about the Taconic RF-30A2 PCB. The RF-30A2 PCB has an explicit design to filter noise from a 2N2222 transistor radio. The two stand-out components on this board are the wire-wound inductor and the rare earth magnet. Both are very small but powerful parts that help increase signal purity. Professor David Wark, an electronic engineer, wrote the fundamental aspects of the circuit. He is famous for inventing the air core inductor in the ’50s. The assembly techniques used here are pretty straightforward. Still, they require some familiarity with basic electronics. They include reading voltages, comparing two leads, and testing a circuit board.

The circuit board can fit an original Taconic 2N2222 transistor radio. The circuit board is fiberglass and has a maximum size of 4 1/2″ x 3″. This means that the PCB will fit inside your pocket or purse. It is convenient for listening to your favorite song, and you don’t have a wall socket or speaker nearby. We also use it in other applications, such as adding a portable sound system or powering a toy.

Taconic RF-30A PCB

The Taconic RF-30A2 circuit board is fiberglass, and they finish it with a black epoxy coating. At the bottom of the circuit board, two holes can accommodate a self-tapping screw. It makes it possible to mount your new RF-30A2 circuit board inside your Taconic 2N2222 transistor radio. The Taconic RF-30A2 circuit board is not pre-drilled, so this is something you will have to do yourself.

The first step in assembling the RF-30A2 circuit board is to mount it inside your Taconic 2N2222 radio. After that, you will solder the board’s wires onto the pins on your 2N2222 transistor. After you have mounted the pins on your 2N2222 transistor, you will connect the rest of the circuit board to it. It should eventually result in a circuit that gains power from your radio. You can use a voltmeter to test your new radio. Boxes and components are not part of this kit.

The final step you will need to do before putting everything back into your Radio-30A2 is to glue down the PCB’s front panel. After attaching the front panel, all you need to do is carefully solder the wires onto the pins on the transistor. This ensures that you connect them properly.

RF-30A gets its optimization from the 2N2222 transistor, so it must ensure that your transistor has all its pins intact. If you rip off one pin on your 2N2222 transistor, you will need to replace it. For the circuit board to work properly, you will have to solder the wires onto a corresponding pin on the transistor. You can always rely on such properties for stable performance (PIMD).

PIMD stands for passive intermodulation distortion. It is a form of interference that occurs with non-linear components. Examples include passive inductors and capacitors.

Benefits of RF-30A

One of the main benefits of using the Taconic RF-30A2 circuit board is running off a 2N2222 transistor radio. This means that you can use 2 AA batteries, 3 AA batteries, or 4 AA batteries (not included with this kit). You can easily recharge your batteries by connecting a 6-volt wall adapter to your Taconic transistor radio. A 6-volt wall adapter will enable you to recharge your 2 AA batteries or your 3 AA batteries equally well.

1. Excellent Price/Performance Ratio

The first thing you need to know about RF-30A2 PCB is its very high price/performance ratio. The 2N2222 transistor features high gain and low noise characteristics. It enables the circuit board to produce well-defined output with the least distortion. Because its design has unique optimization, this circuit board can maintain a good signal-to-noise ratio. Even when the 2N2222 transistor has pins missing or ripped off. This makes it a great radio easy to adjust and maintain if any pins are missing.

2. Clean, White Surface

The Taconic RF-30A2 circuit board has a clean, white surface ideal for etching. This means that you can use either ferric chloride or ferric sulfate to etch your design onto the circuit board. Both of these chemicals are very effective as etchant and anodizing agents. However, they are slightly dangerous if you don’t know what you’re doing.

3. Excellent Etchability

Even if you don’t have a lot of experience etching circuit boards, getting the Taconic RF-30A2 circuit board to work is pretty easy. Its design enables the user to get excellent quality of etched circuit board that can withstand the test of time. This is because RF-30A2 uses a combination of bare copper, fiberglass, and epoxy as its circuit board materials

4. Low Moisture Absorption

The Taconic RF-30A2 circuit board is famous for being highly moisture-resistant. This means that even if you use it in a humid environment, the circuit board will function as intended and won’t affect its pins’ working. The benefit of this feature is that you can use your circuit board to play music whenever you want. This is without having to worry about your design getting ruined by moist air or humidity.

5. Stable at High Temperatures

If you feel like having a prolonged conversation on your radio or if you’re looking to play your favorite songs for an extended period, then RF-30A2 can handle these conditions and more. The Taconic RF-30A2 circuit board can operate at high temperatures of up to 125 degrees Celsius.

6. Stable at High Frequencies

Manufacturers such as RayMing PCB and Assembly design the RF-30A2 circuit board with stable frequency manipulation in mind. This makes it ideal for those looking to experiment and modify the design of their old transistor radios.

7. Stable Mechanical Properties

Producers of the RF-30A2 circuit board designed it with stable mechanical properties in mind. The materials used on this board are durable enough to withstand the test of time. It puts you in a position to modify your old transistor radio or music player if you want to.

Processing Guidelines for Taconic RF-30A2 PCB

If you want to design and have your circuit board printed, we recommend that you follow the following guidelines:


You can handle this circuit board using your hands. You can also solder or etch it using a variety of chemicals.

Bare Copper:

If you want to insert bare copper metal in your design, we recommend using a copper-clad laminate (CCL) substrate.

Copper Clad Laminate:

If you want to insert bare copper metal in your design and there is a mistake, it is best to desolder the circuit board than fix it by soldering.


If you want to use epoxy as an etchant, we recommend using epoxy resin instead of pure liquid epoxy.


You can use several chemicals to prepare your bare copper for RF-30A2 PCB. However, we recommend using Rustoleum Ceramic Coating Masterbatch. It contains neutralizing agents that make your design surface smooth and clean.

Resist Application:

We recommend that you only apply a single layer of resistance to your design. This will enable you to achieve a smooth surface and better adhesion between the resist and the copper on the circuit board.


The best imaging method that you can use on RF-30A2 PCB is laser imaging. However, you can use a UV-LED Flashlight if you’re short on cash.

Develop Resist:

You may want to develop your design independently before image-etching it onto RF-30A2 PCB. This will enable you to save money on the resist you use for image-etching.

Etch Copper:

Etching RF-30A2 PCB is easy. We recommend that you use Ferric Chloride as it can etch bare copper easily, even if its surface has any defects in any way.

Automatic Optical Inspection:

If you have access to Automatic Optical Inspection equipment, you can use it to help you inspect your design for any errors in your soldering before etching it.


As a precaution, you should leave the surface of your RF-30A2 PCB in an oxidized state as it prevents corrosion from affecting it.

Comparison between RF-30A, TSM-DS3M, and EZ-IO-F

The purpose of this circuit board is to make a radio using any transistor rectifier, LDR, and push-button, but it does not need a powered speaker. It uses two transistors, one for the base oscillator and the other for the horizontal output connected to the RFU-1B switch. The RF-30A2 uses a TSM-DS3M R-ch MOSFET as the main oscillator, and the 2N2222 is helpful as an RF amplifier.

The EZ-IO-F circuit board combines an LDR, push-button, and transistor connection to a headphone or external speaker. But it does not have an oscillator. It uses one external NPN transistor and one PNP transistor with a DC power supply.

The purpose of this circuit board is to make an FM radio tuner. The transistor Q1 and a capacitor C1 guarantee the reliability of the EZ-IO-F circuit board. The EZ-IO-F uses an MPSA18 as the main oscillator with a frequency deviation of +/-5 kHz. We use the other MPSA18 as the RF amplifier with a frequency deviation of +/-10 kHz to ensure correct FM modulation.

This circuit board aims to detect sound using an LDR, wire, transistor, and capacitor. This circuit board uses an NPN transistor, an LDR, and a capacitor. We use these components to detect air vibrations and turn them into electrical energy that the transistor can amplify. TSM uses a PNP transistor and one collector resistor for amplification.

The RF-30A2 circuit board combines the LDR, transistor, and capacitor with a tuning button, volume control, and power switch to make a radio. The radio has only one transistor as a rectifier and an audio amplifier made from resistors, capacitors, and transistors.


Taconic RF-30A2 has several advantages. Its price provides an excellent input voltage range, frequency range, and noise rejection. If you look at the circuits made out of this circuit board, they are stable and do not affect the performance of the radio in any way. Considering that RF-30A2 PCB is a double-sided board that allows you to make a design for two speakers on one circuit board, this is worth considering.




                Get Fast Quote Now