M463AB — Submaster Module

8-109 AMPLIFIER SERIES

T he 8-109 ser ies of ampl if iers a re u ti l ized as an i nt ern al componen t withi n v a r i ou s WBS series of aud io console modules . Ea c h 8-109 amp l i f ier mounts as a plug-in assembl y on to t h e module mo t herb oard .

The 8-109 ampl ifier provides an actively balanced output w ith a +30 dBm capability. It is employed as an output or a booster amplifier w ith either a balanced or an unbalanced inpu t.

The follow ing spec ifications app ly to the 8-109 ser ies of ampli fie r s.

Un it Ga in

8-109 Balanced 15 dB 8-109A Unbalanced 7 dB 8-109B Balanced 18 dB 8-109C Balanced 39 dB 8-1090 Unbalanced 29 dB 8-109E Balanced 29 dB 8-109F Balanced 33 dB 8-109G Ba lanced 23 dB

Frequency Response: +/- 0.2 dB from 20 Hz t o 20 k Hz .

No ise: -108 dBm EIN from 20 Hz to 20 kHz.

Source Impedance : 600 ohms or l e ss, ba lanced or unbalanced.

I nput Impedances: Mode ls with b alanced input: 5k ohms m in imum. 8-1 09A: 30k ohms. 8-1090: 4700 ohms.

Input Levels: Depending on ga in or particular model and s ystem operat ing levels. (Refer to ga in a

speci f icat ions above.) .c ps

Ou tpu t I mp e d a n ce : Less t han 100 ohms . BS

Load Impedance: 600 ohms, ba lanced. //W : tp ht

8-109-1-1

WARD-BECK SYSTEMS LTD

8-109 AMPLIFIER SERIES

Output Level : +30 dBm maximum.

Power Requirements : +/- 21 .5 volts dc, 18 mA quiescent current. 65 mA at +30 dBm output.

Ambient Temperature: o to 60 degrees Celsius. Dimensions: 3.25" x 3.38" x 0.57" (83 mm x 86 mm xIS mm).

The 8-109 comprises two amplifier sections, one consisting of 21 with 01 through 04, and the other of 22 with 05 through 08.

In the major ity of the 8-109. models, the inputs of the two amplifier sections are interconnected as a cross coupled differential pair to provide a balanced input . Alternately, in the case of the 8-109A and D, a single-ended, unbalanced input is used.

The balanced input yiel ds several input characteristics simi lar to those of an input transformer. Output level remains constant when the input is fed from either a balanced or an unbalanced source. Good common mode rejection is another feature of this type of input configuration.

For amplifiers operating i n the balanced mode, the value of R15 establishes the feed back ratio of the two amplifier sections and thus controls the ampiifier gain.

When utilized in the unbalanced arrangement, the lower amplifier section (22 with 05 through 08) is used as the input section, with the input signal applied to p in E2. Amplifier gain is determined by the values of R6, Rll and R12. One half of the balanced output signal appears at pin E6. The upper half of the amplifier (21 with 01 through 04) operates as a unity gain inverting amplifier with El externally strapped to E6. a .c

The output of all models of the 8-109 series is actively balanced and ps

is brought out at pins E4 and E6. BS //W : tp ht

8-109-1-2

W ARD-BECK SYSTEMS L TD

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WARD-BECK SYSTEMS LTD; OTJ 2matzya Mjae-OAAW

8-109 AMPLIFIER SERIES Output Level: 0s +30 dBm maximum. 29i782 e0 /-3 #dt eot 7o 10zno? 2 = Power Requirements: +/- 21.5 volts dc, MA quiescent current_ MA +30 dBm output. Giua Desnsisd T4ns eor-6 Gnt Ambient Temperature: CA degrees Celsius. viilidscs? mab Gn 6160 ~antis 7fim Dimensions: 3.25" 3 . 38" 0.57" 39i752- eo{ (83 Mm Mm MM) . - - #rit The 8-109 comprises Iwo amplifier sections_ one consisting Q1 through 04_ and the other 22 with 05 through QB _ with The linear integrated circuit operates as preamplifier and buffer stage drive the transistor output amplifier section. the majority the 8-109. models, the inputs the [Wo amplifier sections are interconnected as cross coupled differential pair provide balanced input Alternately, the case the 8-109A and single-ended, unbalanced input used. Oeo -3 The balanced input yields several input characteristics similar those an input transformer Output level remains constant when the input fed from either balanced an unbalanced source Good common mode rejection another feature this type input configuration 6non T63i9v UC uo For amplifiers operating the balanced mode, the value R15 establishes the feed back ratio the tWo amplifier sections and thus controls the amplifier gain. Ua obqm E Ot When utilized the unbalanced arrangement, the lower amplifier section (Z2 with 05 through Q8) used a5 the input section, with the input signal applied Pin E2. Amplifier gain determined by the values R6, R1I and R1z. One half the balanced output signal appears Pin E6 . The upper half the amplifier (21 with through 04) operates 2s unity gain inverting amplifier with externally strapped E6 . Jego 270i]6jiti3ec2 The output all models the 8-109 series actively balanced and brought out pins E4 and E6 . JOC uqjuo bsonelad n 0oa 93056 gm| beoJ B-109-1-2

WAAD-BECK SYSTEMS LTD CTJ emateyz eCF T2i PARTS_LISI c3i 8-109 AMPLIFIERSERIES O 8-109 TAAG Jam PART

Also: general boilerplate (8 devices)

ML63AB_SUBMASTER_MQDULE The M463AB designed accept combined mixed feeds from previously assigned mixing channel inputs The assigned mixing channel inputs are amplified ana routed the appropriate points within the console system Input and_Summing Amplifier The signal originating from the external mixing network applied the summing current nodes the input amplifier via edge connector pins and through 08 form summing amplifier comprising balanced input and an unbalanced output To correct for sma system level variations_ trim pot R7 incorporated as part the preamplifier The differential balance adjustment controi R6 serves minimize common mode type signals originating ahead the amplifier C12 couples the output the summing amplifier low-pass filter consisting R22 R23 R24; C13, C1b C15 and 21 The dB roll-off point located approximately 40 kHz _ The output 8-109A coupled through C18 the output amplifier 8-109A Output Amelifier and INSERT The 8-109A amplifier raises the nominal signal level t0.

0 dBm The output actively balanced and fed the "insert point" pins and Pins and are usually connected normalled set jacks, with the output side connected the submaster fader insert The fader output returned the module on pins and The feed for the PREFADE outputs normally picked UP the mixing fader input and returned the module via pins and R_ 8-109F Booster_Amplifier This amplifier operates with gain 33 dB recovers the dB "in-hand" loss incurred by the fader and provides additional gain produce nominal level dBm its output _

M463AB SUBMASTER MODULE Gain: dB +7 - 0.5 dB (with fader "in-hand" position) dB Frequency Response: +/ - 0.25 dB from 20 Hz kHz . Noise: dB below dBm nomina output level (20 Hz 20 kHz } Harmonic Distortion: Less than 0.25% from Hz kHz +28 dBm less Typically less than 0.05% cross most bandwidth) Source Impedances Summing: 30 , 00o ohms, balanced Input Impedances: Summing: Less than ohms Output Impedance: Less than 100 ohms (at 8-109A ouiput and DIRECT output Less than 200 ohms MONITOR output.

Load Impedance: 600 ohms, balanced (at insertion Point and DTRECT output) . Output Level -10 aBm nomina insertion dBm nominal DIRECT output _ +30 dBm maximum Phasing: Input and output terminals designated by numbers are Pnase Power Requr rements: +/-25 volts dc, 200 mA maximum. MA nominal Ambient Temperature: degrees Celsius Dimensions: wide 7 . 0" high 6.5 (41 Mm 178 Mm 165 Mm deep

8-109 AMPLIF IER SERIES

8-109

PART DESCRIPT ION MFG MFG PART NUMBER

Cl Capaci tor 33 uF /l0 V Kernel T390D336M01 0AS C2 " " C3 " 10 uF /25 V T390C106M025AS C4 " C5 4.7 p F Ph i l i ps 2222-638- 09478 C6 15 p F 2222-638-1 0159 C7 10 pF 2222-638-1 0109 C8 " 68 pF 2222-638- 70689 C9 " 10 u F/ 25 V Kerne t T390Cl06M025AS Cl0 4.7 pF Ph i l i ps 2222- 638- 09478 Cll 15 pF 2222-638-10159 C12 10 pF " 2222- 638- 10109 C13 " 68 p F 2222-638- 70689 C14 " 10 u F/25 V Kernet T390C106M025AS C15 220 uF/l 0 V T390F227M010AS C16 C17 de le le CRI Diode Fa irch i ld IN4148 CR2 CR3 CR4 " 01 Tran s istor Nati onal PN3569 02 " PN3645 03 " 2N21 02 04 " 2N4037 05 " " PN3569 06 " " PN3645 07 2N21 02 08 2N4037 a .c

Rl ps

Res istor 1/4W 5% 47K Philip s R2 47K " BS

• R3 6K2 R4 6K2 " //W

R5 ,, ' 6K2 : tp ht

8-109-2-1

WARD-BECK SYSTEMS LTD

8-109 AMPLIFIER SER IES 8-109

PART DESC RIPT ION MFG MFG PART NUMBER

R6 Res istor 1/4W 5% 6K2 Ph il ips R7 18K R8 It 18K It

R9 It 16K R10 2K It

R11 16K R12 2K 1'\13 390 R14 It 390 R15 delete R16 22K R17 It 4K7 It

R18 22K R19 22 It

R20 It 470 nom. It f a c tor y selected R21 4K7 R22 4K7 It

R23 It 22K It

R24 4K7 R25 It 22K R26 22 R27 470 nom. factory selected R28 It 4K7 It

R29 It 4K7 R30 Res is tor 1/2W 5% 6.8 It

R31 6.8 It

R32 It 6.8 R33 It 6. 8 R34 1/4W 5% 5.6 R35 It 5 .6 It a

R36 .c

4K7 R37 4K7 ps

R38 delete BS

Zl Integ ra ted Circu it Nat ional //W

LF356N Z2 It It : tp

8-109-2-2 ht

WARD-BECK SYSTEMS LTD

8-109 AMPLIF IER SERIES

8-109A

A ll p a r ts as per 8- 109 e xcep t as not e d be lo w

PAR T DESCR IPTION MFG MFG PART NUMBE R

C6 Capa c i tor 4 .7 pF Ph ilips 222 2- 6 38 - 09478 Cl1 " C17 4700 pF Ase lco CQ92 -MC- 100-472M

R3) Res istor de l ete R4 ) R5 Resistor 1/4W 5% 30K Ph il ips R6 " 18K

23 8-109 AMPLIFIER SERIES 8-109A 0e0i-8 Dajon e01-8 78q 29 8,969 VIA AII parts as per 8-109 except as noted below Aa8M TAAS 07M MoiTAu ClF9 PART

8-109 AMPLIFIER_SERIES 8-109D 4e0!-8 AII parts as Per 8-109 except noted below E0i-8 799 25 21769 MFG MFG PART_NUMBER PART