M473B — Stereo Submaster
| Type | module |
| Category | SUMMING |
| Try it | simulator & front panel · download package (zip) |
| Earliest dated evidence | 1984|17 — manual issue date |
| Evidence | "MANUAL ISSUE #1 BS //W OCTOBER 1984" in PUBLIC/Manuals + tech DOCUMENTS/Modules/Ward-Beck Systems - M473B - Stereo Submaster - www.WBSps.ca.pdf |
| Confidence | high |
| All years found | 1984|17 |
| Variants | M473, M473A |
| Folder | Modules/SUMMING/M473B |
Connections and circuit (ideal SPICE model)
Inputs, outputs, power and control as its own documents name them (no RTO-144 sheet for it: pin numbers only where the page gives them). Run the generator, turn the gain, watch the VU.
Pinout & connections
Each contact as its own documents name it: 8 named (8 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 — 8 contacts
| Pin | Signal | Kind | Confidence | Read from | Source |
|---|---|---|---|---|---|
| 12 | LEFT | named, kind not clear | high | table | 1984 - M473B - Stereo Submaster.pdf, p. 2 |
| 18 | CONTROL COMMON | ground / common | high | table | 1984 - M473B - Stereo Submaster.pdf, p. 2 |
| 20 | SIGNAL GROUND | ground / common | high | table | 1984 - M473B - Stereo Submaster.pdf, p. 2 |
| 22 | CHASSIS GROUND | ground / common | high | table | 1984 - M473B - Stereo Submaster.pdf, p. 2 |
| P2-19 | -25 V | power rail | high | rto-144 | M473B.rto144.json, p. 1 |
| P2-20 | COMMON also: COMMON (rto-144) | ground / common | high | rto-144 | M473B.rto144.json, p. 1 |
| P2-21 | +25 V | power rail | high | rto-144 | M473B.rto144.json, p. 1 |
| P2-22 | CHASSIS | ground / common | high | rto-144 | M473B.rto144.json, p. 1 |
Pictures
1984 - M473B - P001 - Title Page.jpg
1984 - M473B - 473-01-003 - BALANCE INSERT FROM BOOSTER BALANCE AMPLIFIER.jpg
1984 - M473B - 473-01-003 - COMMON SOLO CONTROL.jpg
1984 - M473B - 473-02-003 - ENG STEREO SUBMASTER MODULE SOLO CONTROL.jpg
1984 - M473B - 473-04-007 - DEPRESSED FEEDS SUBMASTER OUPUT PUIPULS SUB.jpg
1984 - M473B - 473-04-007 - SWITCH SWI WHEN FEEDS SUBMASTER SIGNAI.jpg
1984 - M473B - P002 - 1-1.jpg
1984 - M473B - P003 - 2-1.jpg
1984 - M473B - P004 - 2-2.jpg
1984 - M473B - P007 - LB473-02-003 1.jpg
1984 - M473B - P007 - LB473-02-003 2.jpg
1984 - M473B - P007 - LB473-02-003 3.jpg
1984 - 473-01-003 - M473B STEREO SUBMASTER MODULE FUNCTIONAL - DRN JP - ISS 1.jpg
1984 - 473-02-003 - M473B STEREO SUBMASTER MODULE SCHEMATIC - DRN JP - ISS 2.jpgPrice history
| Year | Kind | Price | Listed as | Effective | Source |
|---|---|---|---|---|---|
| 2005|38 | used market value | 50.00 | M473B Stereo Sub master | wbsps - website ARCHIVE/WBSPS 2008/ARCHIVE/old website/PriceGuide.htm | |
| 2006|39 | used market value | 50.00 | M473B Stereo Sub master | wbsps - website ARCHIVE/WBSPS 2008/ARCHIVE/jan 2006 shell/priceguide.htm |
Dates found in the documents
| Year | Kind | Text | File |
|---|---|---|---|
| 1984|17 | manual issue date | MANUAL ISSUE #L OCTOBER 1984 |
1984 - M473B - P001 - Title Page.jpg |
| 1984|17 | manual issue date | MANUAL ISSUE #1 BS //W OCTOBER 1984 |
1984 - M473B - Stereo Submaster (2).pdf |
| 1984|17 | manual issue date | MANUAL ISSUE #1 OCTOBER 1984 |
1984 - M473B - Stereo Submaster.pdf |
Physical manual inventory
| Item | Location | Status | Scanned |
|---|---|---|---|
| M473B - Stereo Submaster | DUPLICATE | SCANNED BUT NEEDS STICHING | |
| M473B - Stereo Submaster | PDF - Already scanned | ||
| M473B - Stereo Submaster | Recently scanned and stiched by WB |
Documents (2)
| Year | File | |
|---|---|---|
| 1984|17 | 1984 - M473B - Stereo Submaster (2).pdf | note |
| 1984|17 | 1984 - M473B - Stereo Submaster.pdf | note |
Photos & scans (12)
Parts list — board 1984 - M473B - Stereo Submaster (2) (8 parts)
From 1984 - M473B - Stereo Submaster (2).pdf; also in timelines/data/bom.csv.
| Ref | Part | Value | Manufacturer | Mfr part no. |
|---|---|---|---|---|
| R1 | Re sistor 1/4W 5% | 620 | Ph i l ips | |
| R7 | Res i stor 1/ 4W 5% | 390 | Ph il i ps | |
| R12 | dele te | |||
| SW2 | WBS 11- 0 11 | |||
| SW2 | P.B.Cap, | Black | FG-BLACK | |
| SW3 | Barndoor | |||
| SW4 | Barndoor | |||
| SW5 | P.B. Cap, | Red | FG-RED |
Named in other drawings & documents (3)
From the manuals
Each manual split into its sections. Text that is the same in many Ward-Beck manuals (warranty, address, standard notes) is kept once on the Boilerplate page and linked.
Parts list (text) (3)
Parts List — 159 words · 1984 - M473B - Stereo Submaster (2).pdf, page 3
M473B STEREO SUBMAS TER MODULE
PART DESCR IPT IO N MFG MFG PART NUMBE R
CRI D iode Moto rol a lN4003 CR2
PCB Pri nted Circuit Board WBS WBS 4-140
R1 Re sistor 1/4W 5% 620 Ph i l ips R2 620 R3 TO Po t en t iome t er lK A l len-Bradle y WBS 10-002 R6
R7 Res i stor 1/ 4W 5% 390 Ph il i ps R8 390 R9 390 R10 390 Rl1 delete
R12 dele te R13 2.2 R14 2.2 R15 2.2 R16 2 .2
R17 39 K R18 39 K R19 39 K R20 39K R21 39 K
R22 39K R23 39 K R24 39 K R25 39 K R26 39 K
R27 39K R28 39K a
SWI Sw i t c h A s semb l y Schadow WBS 11- 103 .c
SW2 WBS 11- 0 11 ps
SW3 BS
S"'4 SW5 //W : tp ht
2-1
WARC-BECK SYSTEMS LTC
- source: 1984 - M473B - Stereo Submaster (2).pdf, p. 3
Parts List — 17 words · 1984 - M473B - P004 - 2-2.jpg, page 1
M473B STEREO SUBMASTER MODULE SOCKETS AND MISCELLANEOUS COMPONENTS 42eM4M TA4$ JAM JyK Vo:[91Aj2a0 T USED ON OOA
- source: 1984 - M473B - P004 - 2-2.jpg, p. 1
Parts List — 15 words · 1984 - M473B - Stereo Submaster.pdf, page 4
M473B STEREO SUBMASTER MODULE SOCKETS AND MISCELLANEOUS COMPONENTS 4280.^ Ts44 Ji" Wo:-919j2z0 TaAC USED ON
- source: 1984 - M473B - Stereo Submaster.pdf, p. 4
Drawings (8)
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.
Balance Insert From Booster Balance Amplifierviewer
Control Solo Solo Outputviewer
Eng Stereo Submaster Moduleviewer
Depressed Feeds Submaster Ouput Puipuls Subviewer
Jeft And Adjusts Rela Right Ouiputviewer
Read from the drawing title blocks.
| Drawing | Title | Date | Drawn by | Checked by | Iss. | Source |
|---|---|---|---|---|---|---|
| 473-01-003 | Balance Insert From Booster Balance Amplifier | file | ||||
| 473-01-003 | Common Solo Control | B | file | |||
| 473-01-003 | Control Solo Solo Output Common | 3 | file p.6 | |||
| 473-02-003 | Eng Stereo Submaster Module Solo Control | JP | file | |||
| 473-02-003 | Control Summing Bus Outputs | file p.12 | ||||
| 473-04-007 | Switch Swi When Feeds Submaster Signai | 1 | file | |||
| 473-04-007 | Depressed Feeds Submaster Ouput Puipuls Sub | file | ||||
| 473-04-007 | Ssignment Litct Suz Nen Ouiao Gna Fed Efsons | 1 | file p.8 |