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STAM AUDIO ENGINEERING

7. Once the GR Meter accurately tracks, as reflected by the external reference meter,

bypass the Gain Reduction and note the movement of the GR meter pointer.

8. Adjust R155 to reset the meter pointer to 0 VU, (no gain reduction).

9. Re-engage compression by pressing the 20:1 ratio. The tracking probably moved a little.

10. Re-adjust R154 to show actual gain reduction. Bypass compression again and re-adjust

R155 so that the pointer is again at 0VU. Each time you step through the procedure, the

meter should move less off its mark than in the previous attempt at calibration. It is not

uncommon to have to repeat the steps 5-6 times before they both lock in and stay where

they should.

11. Congratulations, you’ve just calibrated your ADG to factory conditions.

SA-76 ADG - USER MANUAL

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Содержание SA-76 ADG

Страница 1: ...STAM AUDIO ENGINEERING SA 76 ADG USER MANUAL WWW STAMAUDIO COM SA 76 ADG USER MANUAL PAGE 1...

Страница 2: ...the rear section No user serviceable parts inside Refer servicing to qualified personnel Caution to reduce the risk of fire or electric shock Do not expose the equipment to rain and moisture The equip...

Страница 3: ...product This product must not be disposed of with household waste according to the WEEE Directive 2012 19 EU and your national law This product should be taken to a collection center licensed for the...

Страница 4: ...e both the 0 12 and 50002 transformers for the A and D sections as used on the original units and bypass the transformers for revision G like the original There were 2 challenges to be overcome First...

Страница 5: ...t transformer 2N3055 and 2N5055 output transistors 1 resistors Matched trio J201 FET 1 2 FEATURES 3 Different 1176 revisions in one unit 2 1 ratio as per famous Hot Rodded Anniversary edition All Butt...

Страница 6: ...nt on the ratio selected the higher the ratio the higher the threshold As the input level is turned up a corresponding decrease in output level may be required 2 2 OUTPUT Output stage level No effect...

Страница 7: ...livers an explosive sound on drum room mics making an incredible grungy bass or electric guitar sound or squeezing a vocal so it sat right in your face 2 6 MODE Select your favourite revision between...

Страница 8: ...curate VU meter 4 Release all Ratio buttons switch off compression 5 Set the Output pot to the 12 o clock position 6 Turn R85 all the way CCW Rev A preamp fine adjust 7 Adjust the ADG input pot until...

Страница 9: ...until the output level drops 1dB You have just biased the FET to the start of its conductive range VU Meter calibration After the Q Bias calibration you can move to VU meter adjustment and GR trackin...

Страница 10: ...tracking probably moved a little 10 Re adjust R154 to show actual gain reduction Bypass compression again and re adjust R155 so that the pointer is again at 0VU Each time you step through the procedu...