Audio
Note L4
EL34 Push-Pull power amplifier.
The
L4 EL34 Power amp chassis is made of ultra strong
3mm aluminum powder coated black. It is the
same width and length as our pre-amplifier and
DAC chassis but 40mm taller. The cover is well
ventilated for airflow on the sides and top.
The unit weighs about 35 lbs and measures 14"x15"x
5" inch. An attractive faceplate on the
front matches the AudioNote Kit line of products
and is an ideal match with an L2 or L3 pre-amp!
The
driver section for each channel consists of
an ECF80 tube. This part of the amplifier (the
driver stage) is a high quality thick PCB with
highest grade copper tracks - The feedback and
compensation circuitry is on this board - and
makes for a straightforward build!
For ultimate sound reproduction the EL34 section
is hardwired with our custom aluminum plate.
The
power supply uses a huge Mains transformer and
choke along with some ultra fast diodes to supply
the AC filaments to the driver and power tubes.
An optional Mundorf M-Cap can be simply connected
to the circuit as an optional high qulaity upgrade
(or you can buy your own and add it at a later
date if you wish).
Once the ultra heavy duty PCB's are populated
it is a just matter of inter-wiring with the
Power Supply and the EL34 section. We are providing
a large schematic on a 3'x2' sheet that shows
clearly all the detailed schematics and inter-wirings
between modules. The Manual also takes you on
a complete test procedure (AC, DC, and amplification
factors) with dummy loads provided to ensure
a fully working amplifier prior to connection
to a system.
For more information see also: AudioNoteKits.com
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