Eddystone EC958/7 Communication Receiver Service Manual PDF (1974)
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Download the Eddystone High Stability Communication Receiver EC958/7 Service Manual (10 kHz–30 MHz). Includes original Issue 1 (Jan 1974) service information plus FSK Module Cat. No. 1533 technical notes, realignment data, component lists, PCB layout, and circuit diagrams. Also includes supplement pages covering 958/7E updates and modification notes. Instant download.
Description
Eddystone EC958/7 Communication Receiver Service Manual PDF DOWNLOAD (1974)
Description
📻 Eddystone EC958/7 High Stability Communication Receiver — Service Manual (PDF)
This is a compact but highly useful service/technical manual pack for the Eddystone EC958/7 High Stability Communication Receiver covering 10 kHz to 30 MHz. Ideal for restorers, radio technicians, and collectors who need authentic alignment notes, circuit information, and service updates for the EC958 series.
✅ What you’ll use this manual for
Identifying the correct receiver variant and issue date (Issue 1: January 1974)
Performing module checks and realignment (including test-point voltage tables)
Servicing the FSK module: setup, circuit operation, parts values, and board layout
Using clear circuit diagrams for troubleshooting and repair
Reviewing supplement/amendment notes for later configuration changes
📚 Contents (neatly categorized)
1) Manual Cover & Issue Information
Eddystone High Stability Communication Receiver
Model: EC958/7
Frequency coverage: 10 kHz – 30 MHz
Issue: No. 1 — January 1974
2) Amendment Record
Amendment record sheet for tracking changes to pages
3) FSK Module — Cat. No. 1533 (EC958 Series)
Performance & Circuit Description
Explains FSK module function and signal path
Notes on baud rates, shift, and teleprinter interface behavior
Installation & Setup
Installation steps and wiring notes
Checks for correct polarity/teleprinter supply arrangements
Realignment / Test Data
Alignment instructions (IF input / tuning / output network checks)
Test-point voltage tables
Component value table for supply variants
Parts & Service Data
Semiconductors list
Coils, capacitors, resistors, presets/potentiometers
Printed circuit board layout
FSK module circuit diagram
4) Supplement Pages — High Stability Communication Receiver
Supplement reference for Model 958/7E (differences vs EC958/7)
Updated technical/performance notes and input/output facilities
Additional modification notes (component changes, wiring changes, filter notes, oscillator/attenuator notes)
5) Amendments / Change Notes
Amendment sheets detailing updated parts, values, and wiring revisions
🧾 File Details
| Item | Details |
|---|---|
| Manual name | Eddystone EC958/7 Service Manual (with supplements) |
| Models covered | EC958/7 + supplement pages for 958/7E + FSK Module Cat. No. 1533 |
| Year | 1974 (Issue 1: January 1974) |
| PDF quality | Vintage black & white scan (readable text, diagrams, tables) |
| No. of pages | 243 pages |
Bring your EC958 receiver back to spec with the original service data, alignment notes, and schematics. Download instantly and start troubleshooting with confidence today.
