DYNACO ST-70 Installatie- en gebruikershandleiding - Pagina 6
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1. 1MOhm potentiometers must be connected to inputs 7 and 17 of the PC-3 driver. If these
potentiometers are not present on the amp, 1MOhm resistors (R2 and R15) must be connected
to ground at inputs 7 and 17. If this does not happen, the PC-3 driver will fail and the signal will
have significant distortion!
2. The AB-Q ST-70 module is already preset to a cathode current tubes EL34 of 38 mA. There is no
need to set it again.
If you want to set a different cathode current on the EL34, follow these steps: