This is our another EL34/KT66 single end class A amplifier. Thomas designed circuit of 6SJ7 pentode in triode connection to drive KT66 or EL34. The rectifier is 5AR4 or 5U4G.
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An externally hosted image should be here but it was not working when we last tested it.
Hi Alejandro,
In this single end class A amplifier, KT66 is under pentode connection and output power is 7W. There are 3 inputs and 4 ohms and 8 ohms ouptut for speakers.
This KT66 amplifier was well designed and soldered by Thomas. The capacitors were seriously selected. I bought NOS TCC Metalpack 0.25uF capacitors and used between 6SJ7 and KT66. Mcap electrolytic capacitor, 33+33uF/450VDC was used for power filtering. The price is USD650 including Chinese tubes.
Have you received the 6L6 amp?
Thanks.
Tony.
In this single end class A amplifier, KT66 is under pentode connection and output power is 7W. There are 3 inputs and 4 ohms and 8 ohms ouptut for speakers.
This KT66 amplifier was well designed and soldered by Thomas. The capacitors were seriously selected. I bought NOS TCC Metalpack 0.25uF capacitors and used between 6SJ7 and KT66. Mcap electrolytic capacitor, 33+33uF/450VDC was used for power filtering. The price is USD650 including Chinese tubes.
Have you received the 6L6 amp?
Thanks.
Tony.
3 inputs and 4 ohms and 8 ohms outputs for speakers. The AC input is 220V.
An externally hosted image should be here but it was not working when we last tested it.
KT66 is a high slope, indirectly heated beam tetrode designed principally for use in the output stage of audio amplifier. The KT66 was essentially a 6L6 redesigned with a larger cathode and a shorter, fatter anode.
KT66 @ The National Valve Museum
KT66 @ The National Valve Museum
Electron KT66 (Made by Shuguang, China) is a nice KT66 with good construction. The price is affordable.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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Dimension of the amplifer: 340W x 280D (including knob and binding post) x 185H mm
N. W.: 12.5 KG
N. W.: 12.5 KG
Russia re-issued Tung-sol KT66 is also worth to try.
An externally hosted image should be here but it was not working when we last tested it.
This is NOS Chinese Shuguang 5Z3P rectifier which is very similar to 5U4G. It is one of my collection of rectifer.
Fortunately, I bought this NOS vintage British made TCC Metalpack 0.25uF capacitors which are very good for using at coupling stage.
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