M604
| Type | module |
| Category | AMPLIFIERS |
| Try it | simulator & front panel · download package (zip) |
| Earliest dated evidence | 1967|0 — month & year |
| Evidence | "Sept 67" in PUBLIC/Manuals + tech DOCUMENTS/Modules/M604 - Dual Frequency Oscillator.pdf |
| Confidence | medium |
| All years found | 1967|0, 1971|4, 1975|8 |
| Folder | DOCUMENTS/wbsPS-NOT UPLOADED |
| Folder | Modules/AMPLIFIERS/M600 |
| Folder | Modules/AMPLIFIERS/M604 |
Connections
What it is made of and what it is part of.
Pinout & connections
Each contact as its own documents name it: 2 named (2 medium confidence). An empty slot is a contact no page names. Hover a contact for its source; the table under the drawing lists them. A 15-pin connector, named in 1967 - M604 - Dual Frequency Oscillator (2).pdf, p. 7.
pinout (SVG) · connections (SVG) · pins (JSON)
Pin evidence — 2 contacts
| Pin | Signal | Kind | Confidence | Read from | Source |
|---|---|---|---|---|---|
| 11 | TWO 600 OHM OUTPUTS AREPROVIDED also: TWO 600 OHM OUTPUTS A… (prose) | audio out | medium | prose | 1967 - M604 - P003 - Circuit Description.jpg, p. 1 “Two 600 ohm outputs are_provided appearing at the PC connector pins These inturn are connected to the module connector and appear on pins 1…” |
| 12 | TWO 600 OHM OUTPUTS AREPROVIDED also: TWO 600 OHM OUTPUTS A… (prose) | audio out | medium | prose | 1967 - M604 - P003 - Circuit Description.jpg, p. 1 “Two 600 ohm outputs are_provided appearing at the PC connector pins These inturn are connected to the module connector and appear on pins 1…” |
Pictures
1975 - M604 - PRICE LIST - PRICE LIST.jpg
1971 - M604 - 1-129-06-001 - HNZES BARD.jpg
1975 - 604-02-002 - M604A 25 Hz OSCILLATOR SCHEMATIC - DRN MRW - ISS 1.png
1967 - M604 - 1-129-02-001 - ESS OTHERWISE SPECIFIED IALL ISTORS ARE.jpg
1967 - M604 - 1-129-02-001 - JOK DIST.jpg
1967 - M604 - 1-129-02-001 - TRIM LONTROL OUTPUT OUT IOMTBDBM.jpg
1967 - M604 - 1-129-02-001 - TRIM SEE.jpg
1967 - M604 - 1-129-02-001 - UNLESS OTHERW RESISTORS ARE.jpg
1967 - M604 - 1-129-06-001 - FINSH EGERM RZA.jpg
1967 - M604 - 604-02-001 - MOPICKD OLS.jpg
1967 - M604 - 604-02-001 - STRAP FOR.jpg
1967 - M604 - P001 - Title Page.jpg
1967 - M604 - P002 - Technical Data.jpg
1967 - M604 - P003 - Circuit Description.jpg
1967 - M604 - P004 - Voltage Chart.jpg
1967 - M604 - P005 - Setup and Test Procedure.jpg
1967 - M604 - P006 - Connector Outline.jpg
1967 - M604 - P007 - Parts List 01.jpg
1967 - M604 - P008 - Parts List 02.jpg
1967 - M604 - Power Supply.jpg
1967 - M604 - Power supply in Rack.jpg
1967 - M604 - Power supply in Rack_small.jpg
1967 - M604 - wbsps - module - m604 power supply in rack_small.jpg
1967 - M604 - wbsps - module - m604 power supply_small.jpg
19xx - 1-129-02-001.jpgPrice history
| Year | Kind | Price | Listed as | Effective | Source |
|---|---|---|---|---|---|
| 1975|8 | list price | 175.00 USD | Oscillator | May 1975 | source |
| 2005|38 | used market value | 10.00 | M604 Dual Frequency Oscillator | wbsps - website ARCHIVE/WBSPS 2008/ARCHIVE/old website/PriceGuide.htm | |
| 2006|39 | used market value | 10.00 | M604 Dual Frequency Oscillator | wbsps - website ARCHIVE/WBSPS 2008/ARCHIVE/jan 2006 shell/priceguide.htm |
Dates found in the documents
Physical manual inventory
| Item | Location | Status | Scanned |
|---|---|---|---|
| M604 - Dual Frequency Oscillator | DUPLICATE | Recently scanned and stiched by WB | |
| M604 - Dual Frequency Oscillator | DUPLICATE | SCANNED BUT NEEDS STICHING | |
| M604 - Dual Frequency Oscillator | PDF - Already scanned |
Documents (2)
| Year | File | |
|---|---|---|
| 1967|0 | 1967 - M604 - Dual Frequency Oscillator (2).pdf | note |
| 1967|0 | 1967 - M604 - Dual Frequency Oscillator.pdf | note |
Photos & scans (49)
Named in other drawings & documents (3)
| File | Page |
|---|---|
| 1995 - M405P - ITEMIMP(1).TXT (2).docx | 1 |
| 1995 - M405P - ITEMIMP(1).TXT.docx | 1 |
| 1995 - M405P - ITEMIMP.TXT.docx | 1 |
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.
Maintenance & alignment (1)
Test Procedure — 132 words · 1967 - M604 - P005 - Setup and Test Procedure.jpg, page 1
Apply 28v dc slowly to test terminals, and note that the output current should be between 12 19 ma Check that regulator output at the emitter Q1 18 +16.5v dc Strap oscillator connector for 400 Hz output frequency Adjust R6 to give 0.35% to 0 .4% distortion. Also note that the output level control range should be between -13 dBm to +14 dBm at 400 Hz .
Strap oscillator connector at 1,000 Hz frequence output The output level control range should be -15 dBm to +10 dBm , The total harmonic distortion should be less than 0 . 5% (typically less than 0 .19) at +8 dBm output The output current should be approximately 18 ma at both frequency setting at +8 dBm output leve 1 Level change between frequencies 19 aB
- source: 1967 - M604 - P005 - Setup and Test Procedure.jpg, p. 1
Drawings (11)
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.
Jok Distviewer
Trim Lontrol Output Out Iomtbdbmviewer
Trim Seeviewer
Notes For Componen Seeviewer
Mopickd Olsviewer
Strap Forviewer
M604A / 25 Hz OSCILLATOR / SCHEMATICviewer
19xx - 1-129-02-001viewer
Finsh Egerm Rzaviewer
Ris Ria Cicviewer
Unless Otherwise Specified Jayl Resistors Areviewer
Read from the drawing title blocks.
| Drawing | Title | Date | Drawn by | Checked by | Iss. | Source |
|---|---|---|---|---|---|---|
| B 604-02-002 | M604A / 25 Hz OSCILLATOR / SCHEMATIC | 1975|8 | MRW | 1 | file | |
| 1-129-02-001 | Ess Otherwise Specified Iall Istors Are | file | ||||
| 1-129-02-001 | Trim Lontrol Output Out Iomtbdbm | file | ||||
| 1-129-02-001 | Unless Otherw Resistors Are | file | ||||
| 1-129-02-001 | Trim See | file | ||||
| 1-129-02-001 | Jok Dist | file | ||||
| 1-129-06-001 | Hnzes Bard | MRW | file | |||
| 1-129-06-001 | Finsh Egerm Rza | file | ||||
| 604-02-001 | Mopickd Ols | file | ||||
| 604-02-001 | Strap For | file | ||||
| B 1-129-02-001 | file |