Page 5 - PR_Jubilee_300B_Hifi_Review_2019_09_EN
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Page: 39
Number: 1 Author: Joe Subject: ᦊޫඪࣔ Date: 30.09.2019 15:57:37
7Hz
A new and unique solution - a 7Hz pure sine wave power generator, provides independently regulated 7Hz pure sine
wave heating voltage and cathode power for each of the three 300B output tubes..... There is no audible hum, noise, and
no unwanted harmonics. It is simpler and more straightforward to connect the three 300B's in parallel for increased
power output. The 7Hz pure sine wave voltage supply has 200 times lower distortion than a typical 50Hz AC power
generator.
Number: 2 Author: Joe Subject: ᦊޫඪࣔ Date: 30.09.2019 15:57:48
Ultimately, Octave's single-ended Class A Jubilee 300B mono power amplifier achieves connects the three 300B tubes in
indirect parallel operation to deliver up to 30 watts of output power and, with perfect power regulation, achieves zero
noise and wide bandwidth. An impedance-optimized output transformer provides high damping factor and very wide
(20 Hz ~ 80 kHz) frequency response. The towered / erected architecture greatly reduces the interference of the power
transformer and also creates the best heat dissipation conditions.
Number: 3 Author: Joe Subject: ᦊޫඪࣔ Date: 30.09.2019 15:57:57
Bias selection
Behind the three power tubes is a main control unit featuring bias (quiescent current) selection, as well as a level meter
for independent bias measurement and monitoring. There is also a status display to indicate XLR (1 ground / 2 positive /
3 negative) or RCA input used, muting, or triggering protection due to overload. 4 Ω and 8 Ω output terminals are also
available.
