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Technical Manual

Halberd

Version 2

September 17, 2021

John W Snyder

Содержание Halberd

Страница 1: ...Technical Manual Halberd Version 2 September 17 2021 John W Snyder ...

Страница 2: ...n of a particular amplifier block becomes abstracted into arithmetic Filters and gain stages may be configured in a straightforward and predictable manner via external components In contrast when working with single transistors the bias gain and frequency response all interact in a dynamic and nonlinear fashion Of course no approach is inherently superior But I feel that the unique qualities of th...

Страница 3: ... protection Low control renamed to Depth High control renamed to Tone Version 1 Original release in Fall 2019 Built in a BB type enclosure and uses a NOS Germanium transistor in one of its gain stages 1 The germanium transistor in V1 required careful selection as well as an extra calibration procedure during assembly When replacing it with a silicon transistor we optimized the filtering and clippi...

Страница 4: ...doo Lab Cioks etc The power input is protected against over voltage under voltage and reverse polarity conditions The unit will not turn on if an incorrect power supply is used Please note that all Electronic Audio Experiments products do not use batteries Warning Halberd V1 units have a current draw of 180mA and will be damaged if a supply other than 9V is used Use standard shielded 1 4 cables to...

Страница 5: ...cut at the out put Turn clockwise to open up high fre quencies or turn counterclockwise for a darker tone When below about 9 00 it can produce an effective bass boost in conjunction with higher Post settings Post Overall output level Note that ex tremely loud signals are possible here This control is buffered for full trans parency at all settings Voice This dramatically alters the voicing of the ...

Страница 6: ...room compression and clipping waveform Turn it up for a fuzzy tone or turn it down for a more chimey tone The Voice toggle is also interactive with the Depth and Pre settings It has three posi tions the center position is identical in voicing to a V1 Halberd There is a gentle midrange emphasis and a moderate amount of gain The up position Clang adds a significant high mid boost to achieve more agg...

Страница 7: ...Document Revision History Version Changes 2 Release for Halberd V2 1 Release for Halberd V1 0 Draft Copy 6 ...

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