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Re: Tamura OPT break in

195.210.132.2

Hi!

Not the problem to draw the circuit of such amplifier.
Whether you are ready to go on the big expenses?
It is important to be determined with components. They should be the best quality, that is correspond F5002. Condensers should be BG WKZ. Displacement of tubes should be fixed. Intercascade transformer Tamura SS-351.
The entrance transformer also should be the highest class, it is better that it simultaneously would carry out a role of a regulator of loudness, as for example transformer S*B TX102. The first lamp should be very transparent, but on the other hand enough powerful. The current of this tube should shake an entrance 300B (capacitor loading).

>Yes, I run my 300B at 60mA.

The current in norm, but voltage is not enough. The lamp should be more heated up. Probably you need to lift a voltage up to 380 volt (plate-cathode TJ300B).

vl

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