GZ34 (GZ34) |
Alfred Zeeb ![]() Schem.: 0 Pict.: 164 24.Jul.09 17:09 Count of Thanks: 56 |
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The "Assembly Instructions" for the Dynaco Dynakit Stereo 70 list on page 10 tubes 5U4G and 5U4GB as suitable replacement for the GZ34 |
Roy Johnson Schem.: 21 Pict.: 132 24.Jul.09 20:40 Count of Thanks: 10 |
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Thank you Alfred, One must be careful in considering replacement tubes. In particular tye GZ34 has a lower heater current than many others of a similar HT rating. It may be OK for that amplifier but not for all! The attached pdf gives a brief overview, but other factors such as series resistance and capacitor loading must also be considered. Best regards,Roy
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