12BH7 Ei
12BH7 Ei
12BH7 Ei
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"<strong>Ei</strong>-RC" - Electronic tubes factory<br />
Data Sheet<br />
<strong>12BH7</strong> Page 1 of 4<br />
<strong>12BH7</strong> is A.F. Double Triode<br />
Quick reference data<br />
• Anode current I a =11,5mA<br />
• Transcoductance S=3,1mA/V<br />
• Amplification µ=16,5<br />
Heating<br />
Heating is indirect by AC or DC, with serial or parallel supply.<br />
Heater voltage V f 6,3 12,6 (V)<br />
Heater current I f 0,6 0,3 (A)<br />
Telephone: +381 18 550 741<br />
FAX: +381 18 550 806<br />
Postal address: Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia<br />
Electronic mail: eirc@eierc.com<br />
Web site: http://www.eierc.com/rc
"<strong>Ei</strong>-RC" - Electronic tubes factory<br />
Data Sheet<br />
<strong>12BH7</strong> Page 2 of 4<br />
Dimensions and connections<br />
Base: Noval<br />
max. 22,2 mm (0.87”)<br />
k<br />
g<br />
8<br />
7<br />
f c<br />
a<br />
9<br />
6<br />
1<br />
5<br />
a'<br />
f<br />
2<br />
4<br />
3<br />
f<br />
g'<br />
k'<br />
max. 60,3 mm (2.37”)<br />
max. 67,3 mm (2.65”)<br />
Telephone: +381 18 550 741<br />
FAX: +381 18 550 806<br />
Postal address: Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia<br />
Electronic mail: eirc@eierc.com<br />
Web site: http://www.eierc.com/rc
"<strong>Ei</strong>-RC" - Electronic tubes factory<br />
Data Sheet<br />
<strong>12BH7</strong> Page 3 of 4<br />
Typical characteristics and operating conditions<br />
Class A1<br />
amplifier<br />
Vertical<br />
deflection<br />
amplifier<br />
Anode voltage V a 250 350 (V)<br />
Grid voltage V g -10,5 (V)<br />
Anode current I a 11,5 16 (mA)<br />
Transconductance S 3,1 3,1 (mA/V)<br />
Amplification µ 16,5 16,5<br />
Anode resistance (approx.) R a 5,3 (kΩ)<br />
Cathode bias resistor R k 560 (kΩ)<br />
Grid input<br />
voltage<br />
Anode<br />
output<br />
voltage<br />
Peak to peak<br />
sawtooth<br />
component<br />
Negative peak<br />
component<br />
Peak positive<br />
pulse component<br />
Peak to peak<br />
sawtooth<br />
component<br />
V pp 25<br />
V p 32<br />
V p 670<br />
V pp 230<br />
(V)<br />
(V)<br />
Maximum ratings<br />
Class A1<br />
amplifier<br />
Vertical<br />
deflection<br />
amplifier<br />
Anode voltage V a 300 450 (V)<br />
Peak positive plate voltage 1500 (V)<br />
Anode dissipation<br />
(each section)<br />
W a 3,5 3,5 (W)<br />
Peak negative pulse grid voltage 250 (V)<br />
Telephone: +381 18 550 741<br />
FAX: +381 18 550 806<br />
Postal address: Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia<br />
Electronic mail: eirc@eierc.com<br />
Web site: http://www.eierc.com/rc
"<strong>Ei</strong>-RC" - Electronic tubes factory<br />
Data Sheet<br />
<strong>12BH7</strong> Page 4 of 4<br />
Average cathode current (each<br />
section)<br />
20 20 (mA)<br />
Peak cathode current 70 (mA)<br />
Grid circuit fixed bias 0,25<br />
resistance cathode bias 1 2,2<br />
(MΩ)<br />
Average plate characteristics <strong>12BH7</strong> (each section)<br />
50<br />
40<br />
V g<br />
=0V<br />
-5<br />
V f<br />
=12,6V<br />
Plate current (mA)<br />
30<br />
20<br />
-10<br />
-15<br />
-20<br />
-25<br />
10<br />
0<br />
-30<br />
-35<br />
-40<br />
0 100 200 300 400 500 600<br />
Plate voltage (V)<br />
Telephone: +381 18 550 741<br />
FAX: +381 18 550 806<br />
Postal address: Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia<br />
Electronic mail: eirc@eierc.com<br />
Web site: http://www.eierc.com/rc
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