Trafomatic Audio Experience TWO - Vacuum Tube Layout; Tube Replacement; Servicing

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TUBE REPLACEMENT
Your Experience Two amplier’s conservative de-
sign maximizes life of the tubes. You can expect
thatyour300Band5U4Gtubeswilllastinexcessof
1000,whilethe6SN7preampliertubesshouldlast
approximately 2500 hrs. Lacking the accurate time
measurement, we strongly recommend replacing the
outputtubesat20-30monthsinterval(dependingon
yourlisteninghabits)andsignaltubesateveryother
powertubereplacement(every24-36months).This
willensurethatthe amplieralwaysperforms atits
best and tube failure will not overstress other parts.
Beforeyoustartreplacementyoushouldmakecer-
tain that the unit is turned off and disconnected from
the AC outlet and that the tubes have cooled down.
Allowsufcienttime,minimum30minutes,fortubes
tocooldownandinternalcapacitorstodischarge.Be-
fore inserting a new tube, inspect the tube for cracks
and physical damage. Make sure that the pins are
straight. If you need to straighten the pins, be very
careful as it may cause the glass envelope to break,
causing the tube to lose the vacuum and fail as soon
astheamplierispoweredon,possiblydamagingthe
amplieraswell.Also,makesuretoinspectthetube
sockets for cracks and pin inserts. Carefully align the
pins with the socket and gently insert the new tube.
Never force a tube into a socket.
Should you decide to buy replacement tubes from
Trafomatic Audio, rest assured that they were fully
tested before the shipment.
Only 300B power tubes can be used. Regarding
preamplier tubes, the 6SN7 tube can be replaced
with other 6SN7 tube type (like 6N8P Russian ,
6SN7GTetc.).Noothertypesoftubescanbeused
astheymaycausedamagetotheamplier,whichis
not covered by the warranty.
Wedonotrecommendfrequentchangesofthetubes,
as the sockets are sensitive mechanical parts and are
rated for relatively small number of insertions.
Servicing
Becauseofitscarefuldesignandhighmanufactur-
ingstandards,yourampliershouldnormallyrequire
only minimal service to maintain its high level of per-
formance.
CAUTION
Lethal voltages are present inside the amplier.
Do not remove the amplier’s bottom cover and
do not tamper with components inside the unit
even with the power turned off. Servicing should
be left only to authorized and trained personnel.
Trafomatic Audio
Trafomatic Audio
Experience Two