FURNISHED ACCESSORIES
Preamplifier (SM93) | 90A4360 |
Black Windscreen (WL93, SM93) | RK355WS* |
Black Tie Clip Assembly (WL93, SM93) | RK354SB* |
Dual Black Tie Clip Assembly (SM93) | RK307DB |
Tan Windscreen (WL93T) | RK304T** |
Tan Tie Clip Assembly (WL93T) | RK304T** |
Black | 65B1733 |
Tan | 65B1733A |
Zippered Carrying Bag | 26A13 |
*Replacements furnished in multiples of 4. |
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** RK304 includes 2 tie clips and 2 windscreens. |
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OPTIONAL ACCESSORIES
WA360 |
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN 55103 (1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments.
+10
dB 0
20
| 2.2 | F |
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| V out |
1 | 3 |
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4 | 20 K |
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2 |
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| +5V |
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TEST CIRCUIT | ||
FIGURE 3
SM93
50 | 100 | 200 | 500 | 1,000 | 2,000 | 5,000 | 10,000 | 20,000 |
Hz
TYPICAL FREQUENCY RESPONSE
FIGURE 4
98.8 mm
27mm
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| 18.8 mm |
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| 0.23 IN. | |||||
| (3/4 IN.) | (5.84 mm) | ||||
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0.37IN
(9.40 mm)
0.24 IN.
(6.10 mm)
0.15IN.
(3.81 mm)
SM93 PREAMPLIFIER | SM93/WL93 MICROPHONE |
OVERALL DIMENSIONS
FIGURE 5
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| C |
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| D1 |
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| RED |
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| C3 |
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| 4.1V | 86B429 |
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P2 |
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| 33X6.3 | R4 |
| R2 |
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| 360K |
| 33K |
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1 | 3 |
| .1V |
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| Q2 | Q1 |
| C7 |
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| 86A350 | ||||
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| 86A348 | |||
| 4 |
| 1.9V |
| .6V | 3.5V | ||
| B | .047,5% | .1V | |||||
| 2 |
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| R1 | |||
| BLK |
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| .05V | ||
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| C6 |
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| D2 | |
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| .047,5% | R5 | C5 | |
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| 62K | 150 pF | 86A415 |
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| C8 |
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| R6 |
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| 150 pF |
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| 24K |
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| GRN | A |
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NOTES:
1. ALL RESISTORS 5%,1/8 WATT, UNLESS OTHERWISE SPECIFIED.
WHT BLK GRN YEL
2. ALL
3.D.C. VOLTAGES MEASURED WITH 11 MEG INPUT VOLTMETER; A.C. VOLTAGE MEA- SURED WITH 1 MEG INPUT VOLTMETER. VALUES SHOWN ARE TYPICAL AND MAY VARY ± 20%.
4. THE FOLLOWING SYMBOLS DENOTE:
CIRCUIT BOARD GROUND
CASE GROUND
5.POWER SOURCE IS 21 VDC THROUGH TWO 1.691 KOHM, 1% RESISTORS FROM SUPPLY TO PINS 2 AND 3 OF CONNECTOR P1.
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| P1 |
| 2 | 1 |
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| 3 |
| L1 |
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| 2 |
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C1 |
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150 pF | 1 |
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C2 | L2 |
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150 pF | 3 |
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BRN |
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.05V |
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T1 | 6. INPUT SIGNAL OF 0.1V AT 2 KHZ | |
| APPLIED TO CIRCUIT BELOW: | |
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| 18K |
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| C |
| 10x10 | |
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| B |
| .1V | 1.2K |
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| A |
SM93 PREAMPLIFIER CIRCUIT DIAGRAM
FIGURE 6
3
