[starkiller]

Just won this off ebay and have a question or two.  If it sounds fine when i turn it on and everything seems "spiffy", shall I check the tubes anyway and replace ones that read low?  I know the 6BS8 tube to be carefull about since that apparently is the alignment one but i want to make sure.  I have lots of spare tubes for the sherwood, reason i ask

[hifigeezer]

Hi, that's a great tuner; if you're happy with the sound don't mess with the tubes unless any appear over heated.

FYI, there's a guy on AK looking for Sherwood-branded tubes:

http://www.audiokarma.org/forums/showthread.php?t=552682&highlight=sherwood+tubes

[SteveFord]

If it hasn't been serviced recently you'd want to do so.
I would check the tubes and have an alignment done to bring it up to snuff.

[starkiller]

Well I would but my post was from 2010 

[SteveFord]

Ah yes, so it is!