Matt reports that The 6EM7 amplifier sounds wonderful! The bass is well articulated without being boomy, mid-tones are clear and even, and the highs are crystal clear.ĭIY 300B Single-Ended-Triode (SET) Hi-Fi Amplifier - 24 March 2014 The 6EM7 SET amplifier uses a 6CA4 tube rectified power supply with excellent channel separation and which is very quiet. The single-ended 6EM7 amplifier is housed in a vertical wooden chassis that has been styled after early vacuum tube equipment of the 1920s. The clean output power from the 6EM7 SET amplifier is about 2.2 Watts per channel with a frequency response that matches the audio output transformers. Matt describes the design and construction of a Single-Ended Triode (SET) amplifier built around a pair of 6EM7 double triode tubes. I highly recommend that anyone looking for a little iPod or computer amp give this one a try.ĦEM7 Single-Ended Triode (SET) Amplifier - 29 June 2015 I currently have a set of NOS Sylvania tubes in it, but I have also used a set of old used GE tubes which sound just as good. Matt reports: This is quickly becoming my favorite amp. The 6CY7 stereo amp uses a 6CA4 tube rectified power supply with excellent channel separation. This amplifier did a little better than this having a -3dB bandwidth from about 46Hz to about 30kHz. The Edcor XSE output transformers are rated from 70Hz to 18kHz. At full output the amp produces a clean 1.3 Watts output per channel into 8Ω. This inexpensive Single-Ended Triode (SET) amp is built around a pair of 6CY7 vertical deflection dual triodes built for TVs. The circuit is biased into Class-A, ultra-linear operation and output power will be dependent on the tubes utilized.ĦCY7 Single-Ended Triode (SET) Amplifier - 30 July 2016 The JBAA tube amplifier can use a 12AX7, 12AU7, ECC82, ECC83, 5751, 12SL7 or 6SL7 in the driver position while 6V6, 6AQ5, 6005, 6Y6G, EL84, 6BQ5, 6F5P, 6P15P-EB, 6Y6GA, 6K6, 6W6, 6GV8, 6BM8, ECL82 or ECL85 can be used for the output tubes. The schematic is similar to the PoddWatt design and able to use a huge variety of tubes. High Fidelity Tube Junk Box Audio Amplifier - 10 November 2019 NEWīruce Heran outlines the design and construction of a High Fidelity Tube Junk Box Audio Amplifier (JBAA). Chronological list of our DIY vacuum tube Hi-Fi audio projects.

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