EL34 single-ended class A tube amplifier
only kits requires you to solder,without 3 piece Tube
This circuit design uses 12AX7 (or higher-end ECC83) as the voltage amplifier and EL34B as a single-ended Class A output. The rectifier section does not use low-efficiency tube rectification, but uses Philip&x27;s rectifier transistor and field effect tube electronic filtering . The music background is very quiet and the extension is excellent.
The electronic components of the circuit are simple and the welding is simple. But if you want to make a complete power amplifier yourself, you need transformers, audio transformers and other accessories. Requires you to have electronic technology skills. If you are not an audiophile and do not have the ability to do it, please do not buy this board. Thank you
product description
PCB 1 piece 170 * 99mm
capacitance
220U--400V * 3 pieces
22U--400V * 2 pieces
220UF * 4 pieces
0.22UF (220nJ) * 2 pieces(Corresponds to the position of PCB silk screen 104)
Terminals * 2 pieces
Resistance * 1 set
Tube holder * 3 pieces
Field effect tube * 1 piece(used, field effect tube may be sent)Please note that it may be new or used.
Philips 2A rectifier tube * 4 pieces
Please note: If the component in the picture is out of stock, we will replace it with another component of the same grade.
Power requirements:
Transformer voltage: AC 230V (range 200V-250V, 300MA or more) AC 6.3V (2A current)
Please contact us if you need to buy transformers and audio output transformers.
Tube requirements:
ECC83 or 12AX7 + 2 piece EL34 B
You can prepare your own tubes as needed. If you have any questions, please contact us.
We have other audio diy accessories. We also have finished power amplifiers. If you need, please contact us.
FETs may send used old tubes. Please note that (based on stock availability, used FETs will be sent first.