[C22 VACUUM TUBE PREAMPLIFIER COMPLETE USER
.
Figure 5: Full C22 preamplifier connection diagram.
8. Plug in all the tubes (EL84 and 6J8 to power regulator board, and three 12AX7B
to C22 preamplifier board)
9. Switch on the power supply without applying any input signals and check again
the B+ voltage (~290V) and filament voltages (~12.6V). Also, a 'click' sound
from a delay protection board will be noticed after a few minutes. This means the
delay protection module is functioning.
10. If the B+ voltage and tube filament voltage are correct, then apply audio signal to
the input of input selector and selector the channel by the rotary.
11. Enjoy it.
If you have any problem in assembly, please contact us by email to
tech@analogmetric.com
www.analogmetric.com
MANUAL]
Analog Metric
Page 8
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