2A3 Singled-Ended Stereo Tube Amplifier

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waamamps

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    • WaamampS
2A3 Singled-Ended Stereo Tube Amplifier
« on: 27 Feb 2011, 02:24 am »


100% hand built stereo, singled-ended all tube power amplifier using 2A3, 6SL7 and 5U4 tubes. This amplifier layout has been carefully designed using a combination of Vintage, and high quality components. These high quality components are brand new and consist of Triad filter choke, Hammond Filament transformers, Illinois electrolytic capacitors, poly capacitors, High quality Ohmite conformal silicone-ceramic coated resistors, carbon resistors, gold-plated RCA jacks, speaker jacks, top grade ceramic tube sockets, IEC connector and power switch. Coupling capacitors are Auricap caps. Illinois electrolytic capacitors are used in the cathode section and Cornell-Dubilier electrolytic capacitors are used in the power supply section. Vintage (new old stock) Marantz dual stereo volume control was used and in the input stage, gold plated shielded wire was used. All components are perfectly matched left to right for proper channel balance. This amplifier was designed on a garolite board, with all handwired, point to point circuitry using less wire to prevent hum. This design allows this amp to run continuously, with extreme quiet operation. This amplifier has built in volume control and can be used with or without a preamp. You can connect any fixed or variable source output directly to this amplifier. You can use the audio out from an iPod, CD, DVD, MP3, Computer, TV, XM or SIRUS to the input connection of this amp. Amplifier was designed utilizing four tubes, one 6SL7 (Input) can be substituted with 5691 and two 2A3 (Output) can be substituted with 45 and 1-5U4 (Rectifier) can be substituted with 5Y3, GR34, 274B or 5AR4. This amplifier features a single pair of inputs, volume control, power switch, power indicator, right/left speaker terminals (8 Ohms) and circuit protection. You will be amazed at the bass sound of such a small amplifier. Amp works great into any 4 and 8 ohms speakers.

Specifications:
* Input connector - Single pair of inputs.
* Built in volume control and can be used with or without a preamp.
* Tubes: 2-2A3 (Shuguang), 1-6SL7 (GE) and 1-5U4 (GE)
* All tube signal path, no feedback,
* Input Impedance: 100K ohms
* Load Impedance: 8 Ohms
* Circuit Type: Single-Ended Class A
* Power Output: 2.5 Watts x2

For More Info: www.waamamps.com
Any questions please email me at: waamamps@gmail.com

Asking: $1199