New Destop Tube Amplifer, ECC85-6L6 class A Single End - Page 2 - diyAudio
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Twin Audio Twin Audio is a manufacturer of hand made audiophile tube amplifiers.

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Old 22nd June 2010, 05:20 PM   #11
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The power switch is on the right side of chassis.
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Old 23rd June 2010, 03:54 AM   #12
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Hi Mark,

A new desktop 6V6 push pull amplifier will be available in next month. The dimension is same as this 6L6 amp. It should better match with Alpair 10 and Alpair 12 as the output power is 12W.

Cheers,
Tony.
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Old 24th June 2010, 08:46 AM   #13
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One signal input keeps direct signal path.
There are 4 ohms and 8 ohms outputs for option.
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Old 26th June 2010, 04:17 PM   #14
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Specifications of transformers:
Power transformer:-
-AC input: 225V
-Size of steel core: 86x50mm
-Thickness of core: 0.5mm
-Output: 250V-0-250V/150mA, 6.3V/2.5A x2 & 5V/3A x1

Output transformers:-
Output power: 10W
Size of steel core: EI 76 x 40 mm
Primary impedance: 3.5K ohms
Secondary impedance: 0-4-8 ohms
Inductance: 25H
Primary current: 100 mA
Frequency Range: 30Hz-20KHz
The steel core is Japanese H10 in 0.35mm thickness.
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File Type: jpg 6L6-1-13.jpg (786.4 KB, 19 views)
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Old 29th June 2010, 04:41 PM   #15
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The size of this 6L6 amp is compact. We try to make this kind of single end tube amplifiers as small as possible. It can match style and sound with CHR-70, CHP-70, Alpair 6 nad Alpair 7.
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Last edited by Musik007; 29th June 2010 at 04:45 PM.
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Old 1st July 2010, 05:11 PM   #16
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The circuit was designed and the amp was soldered by Thomas.
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Old 4th July 2010, 04:05 PM   #17
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The heart of the 6L6 amp.
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Old 7th July 2010, 07:24 PM   #18
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CDET 0.33uF/630VDC film capacitors are used between ECC85 and 6L6.
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Old 10th July 2010, 05:40 PM   #19
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The Japanese Matsushita 100uF/100V capacitors were used for the cathodes of ECC85 and 6L6.
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Old 15th July 2010, 02:21 PM   #20
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120W EI power transformer with AC input 230V.
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