Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP.... - diyAudio
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Old 10th July 2009, 11:48 AM   #1
zxcxz is offline zxcxz  Europe
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Default Custom designed transformer for Andrea Ciuffoli 6c33c OTL AMP....

I have ordered toroidal Encapsulated custom transformer for Andrea Ciuffoli 6c33c tube amplifier
http://www.audiodesignguide.com/my/index.html#MY_OTL
with extra low noise and EMI screening
Transformer speciale designed for audio aplication.

Transformer spec...
Weight 10kg
Size diam 210mm height 80мм
Nominal power 1400W

first widing
2x110V

second widing
25V 8A
12.6V 4A
9V 0.3A
70V 0.3A
70V 0.3A
70V 0.3A
260V 0.3A
250V 4A

Price aprox 250 EUR
Please write your questions if you the given transformer interests
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Old 10th July 2009, 01:01 PM   #2
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Combining B+ supplies and heaters in one transformer is not such a great idea IME.
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Old 10th July 2009, 04:14 PM   #3
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I have heard this before, but am looking for a little more info. How about for rectifiers? See any concerns with using the same tranny for B+ and heating the rectifiers? Typically, I will use a separate split bobbin tranny for the audio tubes.
What about in those shared applications using a common mode choke with ceramic caps at the heater pins?

Thx
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