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Changing tubes will definatly change the sound. I'm asuming the
sovtek has EL34 power tubes ( or valves ), which yeild a sweetly
compressed 'Marshall' type of sound. If you replace these with 6V6
tubes, you'll get a more 'fender' sound. Of course, you'll have to
have the amp rebiased by a pro when you change the tubes. Keep in
mind however, the country of manufacture and brand are very
important; stay away from chineese made tubes ( distorted and
unmusical ). As for Russian made tubes, Svetlana seems to be the best
brand, sovtek's are a little harsh. Groove tubes and Fenders are just
repackaged chineese or russian tubes. Your best bet is to use N.O.S.
('new old stock' ) RCA or General Electric. The phrase 'they don't
make 'em like they used to' definatly applies here. Generaly, NOS
tubes are better made, more musical, and very durable. J.A.N tubes
(joint army and navy ) were manufactured for the military and are
practicly indestructable. NOS tubes are available online from KCA
(don't know the address, but just do a Google search for NOS tubes).
By the way, where in Belgium are you from? I played at the Vort N'
Vis in Ieper ( Ypres )a few times, I lived in the Netherlands for a
while and toured Europe a lot, and my cousin used to live in Brussel,
Anyway I hope this helps, Viktor
--- In SurfGuitar101@y..., "Jerry" <jerry.soetewey@b...> wrote:
>
>
> Hello,
>
> I got a question related to tube amps.
>
> I play on a 10 year old Sovtek MiG 100 head thru a Marshall 4 x 12 "
> 1960 cabinet. Yep a bit too heavy for surf, but that's what I got.
>
> I think my tubes have had it, since the amp starts to make strange
> noises from time to time while playing. The tubes also don't lit up
> equally as they used to.
>
> Now, can I replace the tubes by other (of course I can) but would it
> affect the sound in any way? Let's say If I put in Fender tubes,
would
> the sound differ from the Sovtek tubes? And if so, in which way?
>
> TIA,
>
> Jerry S. from Belgium "the Ohmmen"
