2. amps-preamps
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Tubes to replace stock in Quad II Forty's amps?

Have a pair of Quad II Forty amps and have decided to retube them in an effort to get rid of some intermittent hums and pops. Great sounding , want to them to sound even better.
I have ruled out GEC 's and such , as money is sort of an issue. Svet's, SED, EH, KT88's , KT90's? Etc.. Ideas. Also, will the brand of rectifier tube(5U4G) make difference in overall sonics?
Lastly, will the input tubes 6SH7 matter in the picture.I been told to suspect these as a source of pops and spitting noises on rare occasion.
Thanks, again. I am new to the world of tubes.
128x128montyoldboy

Showing 2 responses by dewald_visser

dewald_visser
176 posts
 
SOVTEK makes very good KT88 tubes & do not forget GROOVE TUBEs KT88s.

The 6SH7 input tubes are supposed to be millitary grade! Gha! Get something with a glass envolope like TUNGSTRAM or ELECTRO HARMONIX.

You do get better 5U4G rectrifiers also from SOVTEK & GROOVE TUBE. Do check out GROOVE TUBE - they hand-match their tubes to very fine tolerances.

Kind Regards,
Dewald Visser
dewald_visser
176 posts
 
Avoid untested tube unless you can test them before you put it in your amps! A faulty input-tube can destroy a power-tube... Be very careful!

Regards,
Dewald Visser
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