From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Circuit diagram and specification sheet for the Cossor-Dodds Amplifier Model 3352.
| Identifier | ExFiles\Box 167\2\ img252 | |
| Date | 14th February 1940 guessed | |
| COSSOR INSTRUMENTS CIRCUIT DIAGRAM OF COSSOR-DODDS AMPLIFIER MODEL 3352 3352 COSSOR-DODDS AMPLIFIER SPECIFICATION The figures given in this specification are approximate and representative of the average instrument. DIMENSIONS Height: 12 Inches, 30 Cms. Length: 16 Inches, 40 Cms. Width: 8 Inches, 20 Cms. Weight: 32 lbs., 14.5 Kgs. The metal case is finished in grey cellulose, with chromium fittings throughout. AMPLIFICATION Approximately 900. FREQUENCY RANGE 2 c.p.s. to 50 Kcs. REPLACEMENTS 1 Cossor 41 MTL - Triode valve - Price 9s. 6d. each 1 Cossor M/S Pen - H.F. pentode - 12s. 6d. .. 2 Cossor 120v. - H.T. batteries, List No. 1120 - 15s. 0d. .. 1 4-volt 40 AH. - L.T. accumulator (not supplied) 2 Siemens 0.9 volt - S.G. bias cells - 2s. 0d. .. Prices do not apply in Eire and are subject to alteration without notice. We reserve the right to vary specifications if necessary. Telephone: Canonbury 1234 (30 lines). Telegrams: Amplifiers, Phone, London. A.{Mr Adams} C. COSSOR LTD. INSTRUMENT DEPT. Head Office: Cossor House, Highbury Grove, London, N.5 Depots at: BIRMINGHAM: 14-16 Carrs Lane (4) ... Tel. Midland 5791-2-3 BRISTOL: 14 Bath Street (1) ... Tel. Bristol 20271-2 CARDIFF: 4 Park Lane ... Tel. Cardiff 172-3 DUNDEE: 51 Dock Street ... Tel. Dundee 2765 GLASGOW: 21 Waterloo Street (C.2) ... Tel. Central 4446-7 LEEDS: Murray's Bldgs., Neville Street (1) Tel. Leeds 21581-2 LIVERPOOL: 42 Paradise Street (1) ... Tel. Central 1877-8 MANCHESTER: 6, 8 & 10 Cannon St.{Capt. P. R. Strong} (3) ... Tel. Blackfriars 9777-8-9 NEWCASTLE: 3 St.{Capt. P. R. Strong} Nicholas Bldgs. (1) ... Tel. Newcastle 23154-5 NOTTINGHAM: Mills Buildings, Plumptre Place Tel. Nottingham 40495 PLYMOUTH: 1 Millbay Road ... Tel. Plymouth 4150 BELFAST: 47 Queen Street ... Tel. Belfast 26088 DUBLIN: 185 Pearse Street ... Tel. Dublin 44066 | ||