Equipment information

Marconi Atalanta 2207C Receiver
Manufacturer:
Model:
Atalanta 2207C
Date:
Category:
Group:
Description:
General Purpose Marine Receiver
Service and User Manual
Manual Type:
Service and User Manual
Pages:
47
Size:
10.79 Mbytes (11311233 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2019 01 06
MD5:
0966d5d72fa97d1b1f91db79ed579b61
Downloads:
656

Information

SECTION 1 General Description Page 1.1 Block Diagrams ... ... 1 1.2 Frequency Ranges ... 2 1.3 Valves ... ... ••• ••• 2 1.5 Front Panel and Chassis Layout ... 3 1.6 Specification ... 3 SECTION 2 Signal Frequencies 2.1 R.F. stages (VI and V2) ... 4 2.2 Calibrating Oscillator (V13) ... 6 2.3 Calibrating action ... 6 SECTION 3 Frequency Changing 3.1 Frequency Changers (V3, V4 and V5) ... 8 SECTION 4 Intermediate Frequency 4.1 I.F. Stages (V6 and V7) ... ... 10 SECTION 5 Desensitising and Muting 5.1 Relay Desensitising ... 12 5.4 Muting Circuit ... 13 5.4.1 Under no-signal conditions ... 14 5.4.2 In the presence of a signal ... 14 SECTION 6 Detector, Noise Limiter and A.G.C. Circuits 6.1 Beat Frequency Oscillator (V9) ... 15 6.2 Balanced Demodulator ... 15 6.3 Noise Limiter and A.G.C. Circuits ... 19 SECTION 8 Power Supplies 8.1 General ... ... 20 8.2 H.T. Supplies ... 21 8.3 L.T. Supplies ... 21 SECTION 9 REVISION 9.1 Points of Interest ... 22 9.1.1 R.F. Section (VI, V12 and V13) ... 22 9.1.2 Frequency Changers (V3, V4 and V5) ... 22 9.1.3 I.F. Section (V6 and V7) ..' ... 22 9.1.4 Detector/B.F.O. (V8 and V9) ... 22 9.1.5 Noise Limiter/A.G. C. ... 22 9.1.6 A.F. Amplifier and output stages (V10 and Vll) 22 9.1.7 Power Supplies (V12) ... 23 9.1.8 Miscellaneous ... 23 9.2 Revision Questions ... 23 9.2.1 Section A ... 23 9.2.2 Section B ... 24 9.2.3 Section C ... 25 APPENDICES Appendix No.1. Magnetostriction ... 27 Appendix No.2. Balanced Demodulator ... 30 Appendix No. 3. Noise Limiter ... 35

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Cirquit Diagram
Manual Type:
Cirquit Diagram
Pages:
4
Size:
1.75 Mbytes (1838349 Bytes)
Language:
english
Revision:
Issue 7
Manual-ID:
W.50259 and/or R 37/58
Date:
Quality:
Scanned document, all readable.
Upload date:
2008 12 04
MD5:
9379277bdb44d51d926cfc179362b4c5
Downloads:
1859