W-5M output tubes

[Joe Filice]

Hello,

I'm using a Heath W-5M power amplifier as part of a vintage
mono audio system to play early LPs.  I just restored the
amplifier.  It had been sitting in a closet since about
1970.  It still has the original tubes, including the Genalex
KT-66 output tubes.  It's working wonderfully, but I was
looking around out of curiosity to see what replacing
them would cost.  Antique Electronic Supply sells used ones
for $54.  Another dealer was offering to buy NOS ones for $70.
I'm wondering if anyone has experience using the Svetlana 6L6GCs
in their place.  They can be had for around $14.  I would
welcome any opinions on this.  Thanks.

Joe Filice KQ6GL

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