• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

micro pre amp

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solderon

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Joined 2010
a few years ago i acquired a Croft Micro pre-amp from an employee of Glen Croft,who had it upgraded by Glen himself.From other sites i found this to be not unusual as he upgraded the Micro several times. What i want to know is does anyone have a diagram of the basic Micro which i can purchase.Also can anyone help me identifi one of the valves as the print has worn off.
There are 4 valves in my Micro,2 ECC83,1 5814a and the one with the print missing is EC?????.

Hope some one can help.
 
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