D.W. Fearn VT-7 - Manual (Page 4)

D.W. FEARN VT-7 Compression Amplifier
5
VT-7 Vacuum Tube Compression Amplifier
Final Test Report
Model _______________ Serial Number_______________Mains Voltage ______________
Date ___________________ Tested by ________ VU Calibrated to _______________ dBm
Test Equipment _______________________________________________________________
Channel A
Frequency Response:
20 cps to 20 kc/s +/- ___________ dB
THD+Noise:
20 cps ______________ %
200 cps _____________ %
2 kc/s _______________ %
20 kc/s ______________ %
Noise:
______________ dB below +4 dBm out
Operational Tests:
Compression Range ________
Attack ____________________
Release __________________
Shape ___________________
Link _____________________
GR Meter ________________
Listening Test ____________
Channel B
Frequency Response:
20 cps to 20 kc/s +/- ___________ dB
THD+Noise:
20 cps ______________ %
200 cps _____________ %
2 kc/s _______________ %
20 kc/s ______________ %
Noise:
______________ dB below +4 dBm out
Operational Tests:
Compression Range ________
Attack ____________________
Release __________________
Shape ___________________
Link _____________________
GR Meter ________________
Listening Test ____________