M166 — Active Summing Module
| Type | module |
| Category | SUMMING |
| Try it | simulator & front panel · download package (zip) |
| Earliest dated evidence | 1970|3 — title block date |
| Evidence | "9 FEB 1970" on 1970 - 166-06-001 - ACTIVE SUMMING AMPLIFIER LAYOUT - DRN DPS.jpg |
| Confidence | high |
| All years found | 1970|3, 1973|6 |
| Used in jobs | 73050 (1973|6) |
| Variants | M166A |
| Folder | Modules/SUMMING/M166 |
Connections and circuit (ideal SPICE model)
Drawn live from its RTO-144 connections: run the generator, turn the gain, watch the VU. Open the netlist to see how the model is built.
Pinout & connections
Each contact as its own documents name it: 6 named (6 high confidence). An empty slot is a contact no page names. Hover a contact for its source; the table under the drawing lists them.
pinout (SVG) · connections (SVG) · pins (JSON)
Pin evidence — 6 contacts
| Pin | Signal | Kind | Confidence | Read from | Source |
|---|---|---|---|---|---|
| 1 | SUMMING IN 10KΩ | audio in | high | rto-144 | M166.rto144.json, p. 1 |
| 2 | SUMMING IN 10KΩ | audio in | high | rto-144 | M166.rto144.json, p. 1 |
| 10 | PREAMP OUT 1 | audio out | high | rto-144 | M166.rto144.json, p. 1 |
| 11 | PREAMP OUT 1 | audio out | high | rto-144 | M166.rto144.json, p. 1 |
| 12 | COMMON | ground / common | high | rto-144 | M166.rto144.json, p. 1 |
| 15 | +48 V | power rail | high | rto-144 | M166.rto144.json, p. 1 |
Pictures
1970 - 166-02-001 - ACTIVE SUMMING AMPLIFIER SCHEMATIC - DRN DPS - ISS 7 (2).jpg
1970 - 166-06-001 - ACTIVE SUMMING AMPLIFIER LAYOUT - DRN DPS.jpg
1973 - 166-02-005 - M166A SUMMING AMPLIFIER SCHEMATIC - DRN BWJ - ISS 4.jpg
19xx - M166 - 1.jpg
19xx - M166 - 166-02-001.jpg
19xx - M166 - 166-02-002 - ACTIVE SUMMING AMPLIFIER PLUG CONNECTIONS.jpg
19xx - M166 - 166-06-001 - MIN BEND RAD UMLESS SPECIFIED.jpg
19xx - M166 - 2.jpg
19xx - M166 - 3.jpg
19xx - M166 - 4.jpg
19xx - M166 - 5.jpg
19xx - M166 - 6.jpg
19xx - M166 - B 166-02-001 - M166 - ACTIVE SUMMING AMPLIFIER - SCHEMATIC (2).jpg
19xx - M166 - B 166-02-001 - M166 - ACTIVE SUMMING AMPLIFIER - SCHEMATIC.jpg
19xx - M166 - B 166-02-002 - M166 - ACTIVE SUMMING AMPLIFIER - PLUG CONNECTIONS.jpg
19xx - M166 - B 166-06-001 - M166 - ACTIVE SUMMING AMPLIFIER - LAYOUT.jpg
19xx - M166 - p1.jpg
19xx - M166 - p2.jpg
19xx - M166 - p3.jpg
19xx - M166 - p4.jpg
19xx - M166 - p5.jpg
19xx - M166 - p6.jpg
1973 - 73050 - 0002.jpeg
1970 - 166-02-001 - ACTIVE SUMMING AMPLIFIER SCHEMATIC - DRN DPS - ISS 17.jpg
1970 - 166-02-001 - ACTIVE SUMMING AMPLIFIER SCHEMATIC - DRN DPS - ISS 7.jpg
1970 - 166-02-002 - ACTIVE SUMMING AMPLIFIER PLUG CONNECTIONS - DRN DPS - ISS 2.jpg
1970 - 166-06-001 - ACTIVE SUMMING AMPLIFIER LAYOUT - DRN DPS - ISS 4.jpgPhysical manual inventory
| Item | Location | Status | Scanned |
|---|---|---|---|
| M166 | Recently scanned and stiched by WB |
Photos & scans (22)
Consoles & jobs it is connected to (1)
Their own drawings name this module.
| Job | Year | Drawing | Page |
|---|---|---|---|
| 73050 | 1973|6 | 1973 - 73050 - 0002.jpeg | 1 |
Named in other drawings & documents (1)
| File | Page |
|---|---|
| 19xx - RTO-144 - Module RTO-144 Jumper calculator.xlsx | 1 |
Drawings (10)
Each scan with its trace laid over it: the slider runs from the scan to the vector drawing. Click one to see it large and save it as SVG, DXF, KiCad, PDF or PowerPoint.
M166 / ACTIVE SUMMING AMPLIFIER / SCHEMATICviewer
M166 / ACTIVE SUMMING AMPLIFIER / SCHEMATICviewer
M166 / ACTIVE SUMMING AMPLIFIER / SCHEMATICviewer
M166 / ACTIVE SUMMING AMPLIFIER / PLUG CONNECTIONSviewer
M166A / SUMMING AMPLIFIER / SCHEMATICviewer
19xx - M166 - 166-02-001viewer
19xx - M166 - B 166-02-001 - M166 - ACTIVE SUMMING AMPLIFIER - SCHEMATIC (2)viewer
19xx - M166 - B 166-02-001 - M166 - ACTIVE SUMMING AMPLIFIER - SCHEMATICviewer
Active Summing Amplifier Plug Connectionsviewer
19xx - M166 - B 166-02-002 - M166 - ACTIVE SUMMING AMPLIFIER - PLUG CONNECTIONSviewer
Min Bend Rad Umless Specifiedviewer
M166 / ACTIVE SUMMING AMPLIFIER / LAYOUTviewer
M166 / ACTIVE SUMMING AMPLIFIER / LAYOUTviewer
19xx - M166 - B 166-06-001 - M166 - ACTIVE SUMMING AMPLIFIER - LAYOUTviewer
Read from the drawing title blocks.
| Drawing | Title | Date | Drawn by | Checked by | Iss. | Source |
|---|---|---|---|---|---|---|
| 166-06-001 | Min Bend Rad Umless Specified | 1970|3 | DP | file | ||
| B 166-02-001 | M166 / ACTIVE SUMMING AMPLIFIER / SCHEMATIC | 1970|3 | DPS | 17 | file | |
| B 166-02-001 | M166 / ACTIVE SUMMING AMPLIFIER / SCHEMATIC | 1970|3 | DPS | 7 | file | |
| B 166-02-001 | M166 / ACTIVE SUMMING AMPLIFIER / SCHEMATIC | 1970|3 | DPS | RB (Rodger Beck) | 7 | file |
| B 166-02-002 | M166 / ACTIVE SUMMING AMPLIFIER / PLUG CONNECTIONS | 1970|3 | DPS | 2 | file | |
| B 166-06-001 | M166 / ACTIVE SUMMING AMPLIFIER / LAYOUT | 1970|3 | DPS | 4 | file | |
| B 166-06-001 | M166 / ACTIVE SUMMING AMPLIFIER / LAYOUT | 1970|3 | DPS | file | ||
| B 166-02-005 | M166A / SUMMING AMPLIFIER / SCHEMATIC | 1973|6 | BWJ | 4 | file | |
| 166-02-001 | file | |||||
| 166-02-002 | Active Summing Amplifier Plug Connections | 2 | file |