EICO Electronic Instrument Co. Inc. 427 Oscilloscopes
Fabricant:
Modèle:
427
Date:
1962
Catégorie:
Groupe:
Description:
General Purpose Oscilloscope

Information

The model 427 is a general purpose Oscilloscope employing advanced, high-quality circuit techniques refined and cost-reduced through years of development work by EICO. While low-priced enough for beginners, the model 427 has all the control facilities and performance quality demanded in general laboratory work, production testing, audio and ultra-sonic development and servicing, ham shacks, and advanced home workshops. Rugged, simple mechanical construction, plus clean open circuit layout make this scope easy to build even by a novice. 1-1 FEATURES 1. Vertical Amplifier direct-coupled for minimum phase distortion, and push-pull for maximum linearity, throughout (6 stages in 3 push-pull pairs). 2. Choice of direct or capacitive input coupling. 3. One internal bias adjust, and a dc balance adjust on the panel, for simple adjustment to optimum performance. 4. Four-position (plus CAL) frequency compensated vertical input attenuator. 5. Saw-tooth (15V p-p, adjustable by HOR GAIN control) output jack on panel for connection to vertical input jack when adjusting the frequency compensation trimmers. 6. INTENSITY, FOCUS, and ASTIGMATISM controls on the front panel. 7. Sharp, clean trace-free of blooming. 8. Instantaneous, drift-free positioning permits centering any part of a trace expanded to 30cm vertically or 20cm horizontally. 9. Easy, direct connection to vertical deflection plates without need of removing and replacing shorting links or wires. Test leads are simply plugged into rear jacks, and switch turned from Amplifier to DIRECT PLATES. 10. INTENSITY MODULATION input (2 meg input Z approx. , 20V ms for blanking beam).

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Service et Manuel de l'utilisateur
Type manuel:
Service et Manuel de l'utilisateur
Pages:
26
Taille:
1.90 Mbytes (1991326 Bytes)
Langue:
english
Révision:
Manuel-ID:
Date:
Qualité:
Document scanné, la lecture en partie mal, en partie illisible.
Date de transfert:
2016 02 18
MD5:
624732a931e6c88b250a4c4e34001c6c
Téléchargements:
618

Information

SECTION I. FEATURES AND SPECIFICATIONS 1-1. Features ... 2 1-2. Specifications ... 2 1-3. Functions of Controls and Terminals ... 2 1-4. Notes on Controls and Terminals ... 3 SECTION II. OPERATIONS ... 4 SECTION III. APPLICATIONS ... 5 SECTION IV. MAINTENANCE ... 8 4-1. General ... 8 4-2. Removal from Cabinet ... 8 4-3. Internal Adjustments ... 8 4-4. Trouble-Shooting the 427 Oscilloscope ... 10 4-5. Tube Replacement ... 10 4-6. Fuse Replacement ... 10 SECTION V. EICO's SERVICE POLICY . . SECTION VI. PARTS LIST ... . . .13 . . .16

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