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Before mains is applied to the unit, check that it is the correct voltage and make sure the
POWER switch is in the OFF position. Connect power lead to mains outlet then switch to
STANDBY and wait about a minute before switching to ON. This will ensure that the valves
have time to warm up before large voltages are applied to the plates. During short breaks the
amplifier can be switched to standby and will therefore be ready to play when next needed.
After switching off it is recommended, as with all valve amplifiers, that it does not receive any
sudden physical shocks while the valves are still hot, i.e. through moving the unit. If possible try
to give the amplifier a few minutes to cool down before transporting it.
IEC SOCKET/MAINS FUSE
The IEC socket is for connection to universally used IEC mains leads to connect to
appropriate domestic mains supply.
In the event of having to replace the mains fuse always use the same rating and type as
marked on the unit's rear panel. Using one of higher rating will invalidate the guarantee.
If after replacement the mains fuse should blow a second time, immediately refer the unit to a
TRACE ELLIOT approved service engineer for checking.
ORIENTATION OF VALVES
Looking at the GA-15RV from the rear with the rear paneI removed you will see four valves,
the two on the left (V1 and V2) should be ECC83/12AX7's and the two on the right (V3 and
V4) should be EL84/6BQ5's. For improved performance and reliability the EL84/6BQ5's
should be a matched pair.
If the need should arise to replace any of the valves we recommend the following types:-
V1 and V2
V3 and V4
TECHNICAL SPECIFICATIONS
INPUT IMPEDANCE
TONE CONTROL
REVERB
CIRCUIT TOPOLOGY
SPEAKER
POWER RATING
Sovtek 12AX7WB or 12AX7WA
Ruby Tubes Tesla EL84
HI - 1M
LO/LINK - 136K
SINGLE DUAL FUNCTION PASSIVE CONTROL
3 SPRING TRAY
PREAMP AND POWER STAGE 100% VALVE
REVERB SECTION DRIVEN BY INTEGRATED CIRCUITS
SINGLE 12" CELESTION
~ 15W PENTODE
~ 6W TRIODE
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