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ECC83s and ECC83a: Is there a difference?

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Old 24th February 2004   #1
jzb
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ECC83s and ECC83a: Is there a difference?

Anyone know why I shouldn't put in new JJ/ECC83S into my Drawmer 1960 instead of the ECC83A's that came with it?

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Old 24th February 2004   #2
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No. An ECC83 is an ECC83 in that unit.
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Old 27th February 2004   #3
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Hi The ECC 83 A is slightly different to the ECC 83!
The ECC 83 A is a low noise low microphony version of the 12AZ7,and has a lower gaih than the ECC83 or 12AX7!

ECC83A=u60
ECC83 =u100
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