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Old 1st September 2012, 06:21 PM   #21
Ronj is offline Ronj  Singapore
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Quote:
Originally Posted by picowallspeaker View Post
Me too ...!!
I recapped totally a Nikko TRM 600 three months ago
And I'm thinking of eliminating all the knobs ....
well , that would be a new amplifier .
Because it has a separation between pre and amplifier stages , in the
end I much preferred to use a separated and specialized preamplifier.
The preamplifier is the real bottleneck of the project , though it does its
duty decently ( you wouldn't believe it after seeing the schematics : transistor>coupling cap;transistor>coupling cap;etc ) Also , after having substituted the supply caps from
6m8 to 10 mF , I had encountered another big bottleneck which was the wiring to the speaker selector , then the switches , then the 'surge' protection
and eventually the binding posts . I removed them and put big wires and binding posts ( the wires, I used them for my mid-tweeter )
Indeed , many clever people say ' do not mess with old amps and don't touch or change anything' ....
Congrats on that.. And now that you have seen my latest predicament... I am not really sure what to do
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Old 1st September 2012, 06:35 PM   #22
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Leave the T and the D amplifier to what they are done for : miniaturized and low power for phones
or high power/high efficiency for arenas .
Today I participated to a thread ' LM 1875 Vs TDA 2030 ' and the dual 15 V supply of the Nikko reminds me of those little ICs .
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