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Old 1st Nov 2006, 8:41 am   #1
'LIVEWIRE?'
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Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,307
Default KT61 alternatives.

Is any problem likely to arise due to the substitution of a KT61 with a KT66 in an HMV1117 radio?

In theory, I suppose the O/P Transformer matching is incorrect, for one thing, since the KT66 has different ratings/characteristics to the '61.It's anode & screen current ratings are higher for one thing.

Last edited by Darren-UK; 31st Jul 2007 at 10:50 pm. Reason: Removed comment re italic typing.
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