30BI SIEMENS | Alldatasheet
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MAZDA %, 30BI CATHODE RAY TUBE—ALL ELECTROSTATIC 34” Dia. Indirectly heated high grade precision measurement cathode ray tube with a polished flat face. Rape Heater Voltage (volts) Yn 4.0 Heater Current (amps) y 0.72 Maximm 1st Anode Voltage (volts Thy (mex: 2,800 Maximum 2nd Anode Voltage {vo'ts peers 1,000 Maximm Srd Anode Voltage (vcits: Vas(nax 8000 Average Sensitivity of "x" Plates (am/V) + 360/V Average Sensitivity of “1° Fietes (av) + B00/v There "V" denotes the voltage on the 3rd Anode and bulb coating. NTER-ELEOTRODE_CAPACTTANCES Ml Deflecting Plate/all other electrodes (svF) Cxi,011 18-9 Hf erdectine Platersil other electrodes fume} Cxzati 10-0 Beflecting Plets/All other electrodes (ne) cyiyait 14.5 YB Deflocting Plate/AI1 other electrodes (nF) Cya?a11 14.5 XI Deflecting Plate/¥1 peflecting Plate (pyr) Cxivy1 1:5 X1 Deflecting Plate/¥2 Deflecting Plate (wir) Cxriy2 1.0 X@ Deflecting Flate/¥1 Deflecting Plate (mF) Cy2’y1 1.0 X2 Deflecting Plate/Y2 Deflecting Flate (uuF) Cxg’yz 1-25 Control Grid (Wehnelt)/Al1 other electrodes: . OpF) Cg. 9.5 ‘DIMENSIONS, Mextmm Overall Length (1m) 40 Meximm Dianeter (mm) Nominal Screen Dianater {inchoo) | Approximate Nevt Weicht (ozs) 2 Approximate Packed Weight (1bs) 1 Nores For generel measurement rork the 30.B.1/P1 1s recommended. ‘This bas a screen with a nedium persistence green phosphor. For special applications, however, the tube may be supplied with any of the standard’ phosphors described oh the Intro- Guctory Page to this Section. Final Anode and Bulb coating are brought out separately in order to enable a finer spot or a hieher writing speed to be obtained by increasing the Final Anode voltage above the limit | Set for the Ist Anode Volcezo. | In use the Zrd inode and duld coating are normally Joined. February 1949 VALVE & CRT DIVISION tasue 2/3 SIEMENS EDISON SWAN LIMITED
CATHODE RAY TUBE—ALL ELECTROSTATIC 34” Dia. Indirectly heated high grade precision measurement cathode ray tube with a polished flat face. TEPICAL OPERATION Bra Anode Voltage (volts Ve 2,000 5,000 SEG lasses Youtags (verte), Yee imate, for focus (volts) Vaz 440 800 ‘Ist Anode Voltage (volts) Val 2,000 2,000 Average Bias on Control Grid | for Cut-off of Beam Current | average Workine Bias for 20a “# ned “ | | Beam (volts) “3 33 | approximate Sensitivity of | Xx" Plates (mm/V) 0.20 0.08 Approxinate Sensitivity of 'y" Plates (m/V) 0.30 0.18 BASE 12 Contact Key Base (BS.448) KEY VIEW OF FREE END rai! xX | \\ 4 We e827 PERMISSIBLE ANGULAR ws ko VARIATION OF MOUNTS + 10° ae mam CONNEXIONS Pin 1 Control Grid s Pin 2 Cathode x Pin & Weater n Pin 4 Heater. h Pin & ‘Anode 2 a Pin 6 ‘Anode 2 e2 Pin 7 Internal Coat ing 3 Pin & Deflecting Plate Y2 ye Pin 9 Deflect ing Plate X2 @ Pin 10 ‘Anode 3 Pd Pin 12 Deflecting Plate X2 x Pin 12 Deflecting Plate Y1 yl February 1949 VALVE & CRT DIVISION Issue 2/3 SIEMENS EDISON SWAN LIMITED
30BI % CATHODE RAY TUBE—ALL ELECTROSTATIC 33” Dia. \\ Indirectly heated high grade precision measurement » cathode ray tube with a polished flat face 90, mox —=} r sais (2 — ey 90 ok] 200 approx . cht | || i 7 Cc rT a i a ala All dimensions in mm. a TE INDUSTRIAL August 1958 VALVE & CRT DIVISION Issue 1/8 SIEMENS EDISON SWAN LIMITED