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INPUT
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OUTPUT
B+ MAINS
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IN
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Tube Location
OUTPUT TUBES:10 x RUSSIAN EL34G
The EL34 type we recommend are the Russian up-rated EL34G. This has been proven to be the most rugged and
reliable of this type and we strongly emphasize that only the RUSSIAN EL34G's should be used in this amplifier. The
MANLEY 250/100 WATT MONOBLOCK has been thoroughly optimised around this tube. Use of unapproved tube types can
and will void your warranty. We have selected the tubes for equality of current draw in our custom-built computerized tube
tester for each of your monoblocks . Although each tube bias can be individually adjusted, "batched" tubes as we have selected
are thouroughly beneficial to the amplifier's performance.
DRIVER TUBES: 1 x 6414
The 6414 is an American military uprated version of the 12BH7A with increased current drive.
INPUT TUBE: 12AT7WA
The 12AT7WA has several equivalent numbers, (12AT7, 12AT7A, 6201, ECC81, etc.) Any of these types may be
used. We have selected this 12AT7WA very carefully for noise, microphonics, and constancy.
Replacement tubes of premium quality are always available from MANLEY LABORATORIES.
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6414
12AT7
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6414