CV5003

Barretter

BU28/4

CV5004

Cathode Ray Tube

3JP2

CV5005

Double Diode

6110

CV5006

Double Triode

6021

CV5007

Double Triode

6112 CV5986

CV5008

IO	1	2	3	4	5	6	7	8
	g1(1)	a(1)	k(1)	g1(2)	a(2)	k(2)	h	h

 
Double Triode

Triode	Vh	Ah	Va	mAa	Pdiss	ra	gm	μ
	6.3	2.5	135	125	13W	285	7.0	2-2.3

 
6080WA 6080 CV2984

CV5009

Rectifier FW

6203

CV5010

Voltage Stabiliser

5644

CV5011

Magnetron

TH1657A F1001

CV5017

Triode

450TL

CV5018

Magnetron

JP9-80 4J52A

CV5019

Magnetron

QK387

CV5020

Magnetron

QK388

CV5021

Rectifier

6V3A

CV5023

Thyratron (Xenon)

AFX234 CV1949

CV5024

MX-408/U

CV5025

Barretter

XB2

CV5027

Thyratron

XG1-2500 3V/390A 5559 21N13

CV5028

Thyratron

3V/390B 21N14

CV5029

B7G	1	2	3	4	5	6	7
	g1	k	h	h	g1	g1	a

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	μ
	6.3	0.4	150	-1	20.0	-	12.0	55

 
6J4WA 6J4 M8232 CV1763

CV5030

Rectifier

26Z5W

CV5031

Magnetron

M548

CV5032

Rectifier HW

1X2A CV5427

CV5033

Barretter

3-14

CV5034

Cathode Ray Tube

3JP11

CV5035

Cathode Ray Tube

5ADP1 DG13-34

CV5036

Triode

6AF4

CV5037

B7G	1	2	3	4	5	6	7
	g1	g3-s	h	h	a	g2	k

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	gm
	6.3	0.3	250	100	-1	11	4.4

 
6BA6W 6BA6 CV4009

CV5038

Triode

6BC4

CV5039

Double Triode

6BL7 6BL7GT

CV5040

Tetrode

6BQ6G 6BQ6GT

CV5041

B9A	1	2	3	4	5	6	7	8	9
	k	g1	g2	h	h	a	g3-s	g2	g1

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.3	250	150	-3	30	7	150k	11

 
6CL6

CV5042

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g1(2)	k(2)	h	h	a(1)	g1(1)	k(1)	hct

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.6	250	-10.5	11.5	5500	3.1

 
12BH7

CV5043

Triode

811A

CV5044

Klystron

5836

CV5045

Klystron

5837

CV5046

Triode

5844

CV5048

Velovity Modulated Oscillator

V239C/1K

CV5049

Velovity Modulated Oscillator

V241C/1K

CV5052

Triode

6AU7

CV5053

Pentode

6098CT

CV5054

Klystron

6390

CV5055

B9A	1	2	3	4	5	6	7	8	9
	g1	k,g1(1)	ic	h	h	ic	a	ic	t

 
Tuning Indicator

CRT	Vh	Ah	Va	mAa
	6.3	0.3	250	2.3

 
EM81 6DA5

CV5056

A2094

CV5057

Pentode

5702WA 5702

CV5058

Pentode

5784WA 5784

CV5059

Double Diode

5829WA 5829

CV5060

B9A	1	2	3	4	5	6	7	8	9
	k	g1	k	-	h	h	a	g2	g3,s

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pdiss
	6.3	0.6	250	250	-2	20.0	5.5	0.5M	15.0	5W

 
Z759 Z759S CV5325

CV5061

Cathode Ray Tube

7YP2

CV5062

Voltage Regulator

5841

CV5065

Triode Pentode

6U8 6U8 ECF82

CV5066

TR Cell

BL25

CV5067

Pentode

6SH7G

CV5068

Triode

ES75H

CV5069

Microwave Switch

GL6621

CV5070

Cathode Ray Tube

5FP11 MB13-1 CV5244

CV5071

Triode

3J/195E

CV5072

B9A	1	2	3	4	5	6	7	8	9
	a(2)	-	k	h	h	-	a(1)	-	-

 
Rectifier FW

Rectifier	Vh	Ah	Va	mAa
	6.3	1.0	350	150

 
6CA4 EZ81

CV5073

B9A	1	2	3	4	5	6	7	8	9
	g1	k	g1	g1	a	g1	h	h	g1

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	gm
	6.3	0.225	200	-1	10	9.8

 
6AM4

CV5074

Triode

6AF4A

CV5077

B9A	1	2	3	4	5	6	7	8	9	tc
	ic	g1	k	h	h	ic	ic	g2	g3	a

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	Pout	D
	21.5	0.3	200	200	-31.5	87	12.5	20W	5.5%

 
PL81 21A6

CV5078

Stabiliser

XC17

CV5079

Thyratron

5643

CV5080

IO	1	2	3	4	5	6	7	8
	m	h	a	g2	g3	nc	h	k

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.2	250	100	-2	3	0.8	2.5M	1.8

 
EF37A CV0358

CV5081

IO	1	2	3	4	5	6	7	8	tc
	-	h	g3	g2	g1	-	h	k	a

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm
	6.3	1.27	250	250	-10.5	64.0	15.0	11.0

 
61SPT

CV5082

Voltage Stabiliser

M8234

CV5083

B7G	1	2	3	4	5	6	7
	a	k	ic	k	a	ic	k

 
Voltage Stabiliser

Stabiliser	Va	mAa
	75	20

 
QS75/20 CV0284

CV5084

Cathode Ray Tube

30B1P3

CV5085

Photocell

27M2 CV0337

CV5086

B9A	1	2	3	4	5	6	7	8	9	tc
	ic	ic	k	h	h	s	a	g2	g3	g1

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	gm
	6.3	0.15	250	100	-3	2.1	1.25

 
6BS7

CV5087

Cathode Ray Tube

4EP7

CV5088

Voltage Stabiliser

XC15

CV5089

Magnetron

L3040

CV5090

Magnetron

L4031

CV5091

TR Cell

CV2311

CV5092

Pentode

EF800

CV5093

Pentode

EL803

CV5094

B9A	1	2	3	4	5	6	7	8	9
	ic	g1	k,g3	h	h	ic	a	ic	g2

 
Pentode

Pentode	Vh	Ah	Va	Vs	mAa	mAs	ra	gm	Pdiss	Pout
	6.3	0.76	200	200	64	3.2	2,500	10	12W	5.3W

 
EL86

CV5105

Transistor

OC45

CV5106

	1	2	3	4	5	6	7	8	9	10	11	12
	h	g1	k,g3,g5	x(2)	a(2)	g4	t	a(1)	x(1)	g2	ic	h

 
Counter/Indicator

CRT	Vh	Ah	Va	Vs	Vg
	6.3	0.3	300	300	11.9

 
E1T 6370

CV5107

Voltage Stabiliser

KD63

CV5108

B9G	1	2	3	4	5	6	7	8	9
	h	k(in)	g1	k(out)	k(sec)	a	g3,s	g2	h

 
Secondary Emission Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	μ
	6.3	0.37	250	150	-2	20.0	1.5	25.0	110

 
EFP60

CV5110

IO	1	2	3	4	5	6	7	8	tc
	m	h	a	g2	g3	-	h	k	g1

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.2	250	250	-2.5	6	1.7	1.5M	2.2

 
EF39 CV1053

CV5112

B8B	1	2	3	4	5	6	7	8
	h	ic	-	a	k	ic	g1	h

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	μ	Pdiss
	6.3	0.45	350	-	45.0	1,000	47	40	7W

 
3A/167M

CV5113

Stabiliser

5787WA 5787

CV5114

Photocell

6260B VX5052

CV5115

Triode Hexode

X79

CV5116

Triode

3B/241M

CV5117

Magnetron

E148L

CV5118

IO	1	2	3	4	5	6	7	8
	m	h	a	g2	g1	nc	h	k

 
Beam Tetrode

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	6.3	0.9	350	250	-18	54	2.5	33K	5.2	11W	15%

 
6L6Y 6L6 CV1948

CV5119

Cathode Ray Tube

CV2965

CV5120

Photocell

20CV

CV5121

Pentode

6870

CV5122

B7G	1	2	3	4	5	6	7
	a	ic	k	t	ic	ic	k

 
Thyratron

Thyratron	Va	mAa
	290	100

 
5823 Z900T

CV5123

Magnetron

JP9-15D

CV5125

Cathode Ray Tube

DP13-34 5ADP7

CV5126

Triode

6AJ4

CV5129

Cathode Ray Tube

C68MM/1D

CV5130

Velocity Modulated Valve

K337 CV4515

CV5131

B9G	1	2	3	4	5	6	7	8	9
	h,k	y1	y2	a2	x1	x2	a1	g	h

 
Cathode Ray Tube

CRT	Vh	Ah
	6.3	0.3

 
DG4-1

CV5132

B7G	1	2	3	4	5	6	7
	a	k	ic	ic	ic	ic	ic

 
Voltage Stabiliser

Vstab	Va	mAa
	150	15

 
M8163 VX8163 CV2225 CV4104

CV5134

Magnetron

JPT9-60 2J51A 2J51 CV3560

CV5135

Magnetron

6027 JP9-15

CV5136

Triode

6533 6533WA

CV5138

Photo Multiplier

IP21

CV5139

Cathode Ray Tube

5FP15

CV5140

Diode

Diode	Vh	Ah
	6.3	0.3

 
EA52 6923

CV5141

Thyratron

BT95

CV5142

IO	1	2	3	4	5	6	7	8
	nc	h	a(2)	g(2)	g	a	h	k

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.8	250	-0	3	7.7k	1.6

 
CV1988

CV5143

Counter/Indicator

GC10D

CV5144

B9A	1	2	3	4	5	6	7	8	9
	at	gt	kt	h	h	ap	kp,g3	g2	g1

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAs	ra	gm	Pdiss	Pout
	12.6	0.3	170	170	-9.5,mAa_30	5	53k	5.5	5.4W	2.2W

 
LN309 PCL83

CV5146

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g(2)	k(2)	h	h	a(1)	g(1)	k(1)	hct

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	gm
	6.3	0.3	250	-8.5	10.5	2.2

 
5814 5814A CV4016 5814WA CV4032 CV4003

CV5150

Diode

576A 576 CV3749

CV5154

Cathode Ray Tube

5JP7A

CV5156

B9A	1	2	3	4	5	6	7	8	9
	s	g1	k	h	h	s	a	g2	g3

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.2	250	100	-2	9	3	1M	3.6

 
6DA6 EF89

CV5157

Cathode Ray Tube

DP13-2 CV3954

CV5159

Rectifier

SU42 HR8

CV5162

TR Cell

TTR31MR CV3840

CV5163

Cathode Ray Tube

MX14

CV5164

Cathode Ray Tube

MM13-10

CV5165

Rectifier

578 CV2967

CV5166

Double Triode

5670WA CV4013

CV5167

Magnetron

CV2167

CV5168

Cathode Ray Tube

DH13-97 5BKP1

CV5171

B9G	1	2	3	4	5	6	7	8	9
	h,k	x1	x2	a2	y1	y2	a1	g1	h

 
Cathode Ray Tube

CRT	Vh	Ah	Va
	6.3	0.4	800

 
DP7-5

CV5172

B7G	1	2	3	4	5	6	7
	f+	a	g2	g1	g4	g3	f-,g5

 
Heptode

Heptode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	1.4	0.05	85	60	0	0.7	0.15	0.65M	0.39

 
DK92 X20 1AC6

CV5173

B7G	1	2	3	4	5	6	7
	a	k	ic	k	a	ic	k

 
Voltage Stabiliser

Stabiliser	Vh	Ah	Va	mAa
	-	-	90-115	1-40

 
90C1

CV5181

IO	1	2	3	4	5	6	7	8
	-	f	-	a(2)	-	a(1)	-	f

 
Rectifier FW

Rectifier	Vh	Ah	Va	mAa
	5.0	2.0	750	250

 
5R4GY 5R4WGB CV0717

CV5182

Tetrode

6AN5WA 6AN5 CV2854

CV5183

Triode

6C4WA CV4058 M8080

CV5184

Pentode

6CD6GA

CV5185

Rectifier

6X4WA CV4005

CV5186

B7G	1	2	3	4	5	6	7
	a	k	k	k	a	ic	k

 
Voltage Reference Tube

5651WA 5651 CV2573 CV4048

CV5187

Double Triode

6336

CV5188

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g1(2)	k(2)	h	h	k(1)	g1(1)	hct	a(1)

 
Voltage Stabiliser

Pentode	Vh	Ah	Va	Vg	mAa	ra	gm	μ
	6.3	0.9	300	-12.5	12.0	3,000	5.4	16

 
5687WA 5687 CV2578 E182CC

CV5189

Double Diode

5726 CV4007

CV5190

Tetrode

6005 M8245 CV4019

CV5192

B9A	1	2	3	4	5	6	7	8	9
	k(2)	g(2),s	a(2)	h	h	g(1)	k1-in	k1-out	a(1)

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	7.0	0.3	90	-1.5	12	4000	6

 
30L1 7AN7 PCC84

CV5201

Triode

CV1763

CV5203

Cathode Ray Tube

RL7076-2D

CV5204

TR Cell

GX415

CV5206

Cathode Ray Tube

RL7076-2A

CV5211

Rectifier

5641 CV0473 CV4505

CV5212

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g1(2)	k(2)	h	h	a	g1	k	hct

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.3	170	-1	8.5	11k	5.9

 
12AT7WB CV4024 CV0455

CV5214

B7G	1	2	3	4	5	6	7
	a(2)	a(1)	h	h	g1(1)	g1(2)	k

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.4	100	-2.1	8.5	4,500	6.0

 
E90CC 5920

CV5215

B9A	1	2	3	4	5	6	7	8	9
	a(t)	g1	g2	h	h	a	k-s-g3	k(t)	g(t)

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.43	250	180	-5.8	5.7	1.4	1.5M	2.1

 
6BL8 6C16 ECF80

CV5216

Pentode

5654

CV5217

Triode

XC23

CV5218

Triode

BR189

CV5219

Power Tetrode

QY5-3000A CR1100

CV5220

IO	1	2	3	4	5	6	7	8
	-	h	a	g2	g1	-	h	k,bp

 
Beam Tetrode

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	Pout
	6.3	1.8	300	300	-20	130	13.5	12	12.5W

 
KT88 CV8286 TT21

CV5223

Cathode Ray Tube

5UP1

CV5224

Triode

6481/5767

CV5225

Diode

UR30

CV5226

Diode

UR40 CV4121 UR40F

CV5227

TR Cell

WF46 VX1039

CV5228

TR Cell

WF47

CV5229

Voltage Stabiliser

GD90

CV5230

Spark Gap

GX406

CV5231

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g(2)	k(2)	h	h	a(1)	g(1)	k(1)	s

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	gm
	6.3	0.3	90	-1	15	12.5

 
E88CC

CV5233

IO	1	2	3	4	5	6	7	8	tc
	-	h	a	g2	-	-	h	k	g1

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout
	6.3	0.2	250	250	-18	32	5	70,000	2.8	3.6W

 
EL32 CV1052

CV5234

Thyratron

ZT1011 XR1-1600A 8063 cv3706

CV5235

Magnetron

JP9-50 2J56 CV2852

CV5239

Power Triode

Triode	Vh	Ah	Va	mAa
	12.6	33	6,000	1,500

 
TY7-6000A 6961

CV5240

IO	1	2	3	4	5	6	7	8	tc
	-	-	-	g2	g1	-	-	k	a

 
Tetrode

Thyratron	Va	mAa
	550	250,000

 
GN10

CV5241

Photocell

IP39

CV5242

Triode

A2599

CV5243

Counter/Indicator

GC12/4B

CV5244

Cathode Ray Tube

MB13-1 5FP11 CV5070

CV5246

Pentode

5933WA 5933 CV3517

CV5247

Thyratron

XH8-100 4C35A

CV5248

Cathode Ray Tube

5FP14A

CV5249

Klystron

KS9-30 6975 VA203B

CV5256

Rectifier

Diode	Vh	Ah	mAa
	2.0	0.2	0.2

 
U25

CV5257

B9A	1	2	3	4	5	6	7	8	9	tc
	h,k,s	h	-	h,k,s	h	h,k,s	-	h	h,k,s	a

 
Rectifier

Rectifier	Vh	Ah	mAa
	2.0	0.35	0.2

 
U26

CV5258

IO	1	2	3	4	5	6	7	8	tc
	-	ic	ic	-	a	-	h	h	k

 
Diode

Diode	Vh	Ah	mAa
	19.0	0.3	120

 
U191

CV5259

B9A	1	2	3	4	5	6	7	8	9	tc
	ic	ic	ic	h	h	ic	ic	ic	a	k

 
Rectifier

Rectifier	Vh	Ah	Vg	mAa
	17	0.3	-1	150

 
U329 U251

CV5260

B8A	1	2	3	4	5	6	7	8
	h	a	a(t)	g1(t)	g2	g1	k,s	h

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	28	0.1	150	150	0	4.7	1.3	-	2.1

 
10C2

CV5261

B8A	1	2	3	4	5	6	7	8
	h	a(2)	g1(2)	k(2)	a(1)	g1(1)	k(1)	h

 
Double Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	12.6	0.2	250	-11.5	10.0	6,200	2.8

 
20L1

CV5262

IO	1	2	3	4	5	6	7	8
	m	h	a	g2	g1	-	h	k

 
Tetrode

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	Pout	D
	20.0	0.2	195	210	-11.5	51.0	12.7	7.4	4.5W	7%

 
20P3

CV5263

IO	1	2	3	4	5	6	7	8	tc
	-	h	-	g2	g1	-	h	k	a

 
Tetrode

Pentode	Vh	Ah	Va	Vs	Pdiss
	38	0.2	400	250	10W

 
20P4

CV5264

Triode

30L2

CV5265

IO	1	2	3	4	5	6	7	8	tc
	-	h	ic	g2	g1	-	h	k	a

 
Tetrode

Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs
	25	0.3	400	250	-1	160	-

 
30P4

CV5266

B9A	1	2	3	4	5	6	7	8	9
	ic	g1	k,g3	h	h	ic	a	ic	g2

 
Tetrode

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	Pout	D
	12.6	0.3	170	180	-10.3	31	7.3	6.7	2.25	7%

 
30P12

CV5267

Cathode Ray Tube

CME141

CV5268

Thyratron

CX1119 7384

CV5269

Cathode Ray Tube

DG7-6

CV5277

B26A	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	19	20	21	22	23	24	25	26	27
	S0	T9	T8	G(odd)	T7	S7	T6	T5	S5	T4	ic	T3	T2	S2	T1	G(even)	T0	S9	S8	h	S6	S4	S3	H	S1	K

 
Beam-X Tube

ET51 6700

CV5278

	1	2	3	4	5	6	7	8	9	10	11	12	13
	ic	a	k0	k9	k8	k7	k6	ic	k5	k4	k3	k2	k1

 
Numerical Indicator

Indicator	Va
	350

 
Z520M

CV5281

Double Triode

6CW7 6L16 ECC84

CV5282

Cathode Ray Tube

AL13-36

CV5285

B7G	1	2	3	4	5	6	7
	a	k	k	k	a	ic	k

 
Voltage Reference Tube

CV4048

CV5287

IO	1	2	3	4	5	6	7	8
	-	-	k	-	a	-	h	h

 
Rectifier FW

Rectifier	Vh	Ah	Va	mAa
	6.3	1.2	660	138

 
6U4GT

CV5289

Triode

BR191B CV2383

CV5290

B26A	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	19	20	21	22	23	24	25	26	27
	S0	T9	T8	G(odd)	T7	S7	T6	T5	S5	T4	ic	T3	T2	S2	T1	G(even)	T0	S9	S8	h	S6	S4	S3	H	S1	K

 
Trochotron

Indicator	Vh	Ah
	6.3	0.5

 
VS10G

CV5292

Velocity Modulated Valve

V238A/1K

CV5293

Travelling Wave Tube

W7/3G

CV5298

Voltage Stabiliser

G55/1K

CV5299

Diode

CC1L

CV5300

Cathode Ray Tube

AL22-10 2273P 9RP33

CV5302

B9G	1	2	3	4	5	6	7	8	9
	h,k	y1	y2	a2,a4	x1	x2	a3	g1	h

 
Cathode Ray Tube

CRT	Vh	Ah	Va
	6.3	0.55	1,500

 
DH7-91 3AFP1 CV6095

CV5304

Triode

6463

CV5306

IO	1	2	3	4	5	6	7	8
	m	h	a	g2	g1	nc	h	k

 
Beam Tetrode

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	6.3	0.9	350	250	-18	54	2.5	33K	5.2	11W	15%

 
6L6GTY

CV5307

UX5	1	2	3	4	5	tc
	h	g2	g1	k	h	a

 
Beam Tetrode (Matched Pair)

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout
	6.3	0.9	300	250	-14	83	8	20k	6.5	6.7W

 
807

CV5310

Photo Multiplier

27M13

CV5311

UHF Triode

M8248 VX8248 6J4WA CV5029

CV5312

Diode

VX9156

CV5314

Klystron

VX7154

CV5317

B9A	1	2	3	4	5	6	7	8	9
	g2-g4	g1	k-g5-s	h	h	a	g1	a(t)	g(t)

 
Triode Heptode

Triode	Vh	Ah	Va	mAa
	6.3	0.3	100	13

 
12AH8 ECH81

CV5319

Cathode Ray Tube

DG4

CV5320

Cathode Ray Tube

D4P

CV5325

B9A	1	2	3	4	5	6	7	8	9
	k	g1	k	-	h	h	a	g2	g3,s

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pdiss
	6.3	0.6	250	250	-2	20.0	5.5	0.5M	15.0	5W

 
Z759S CV5060 Z759

CV5326

Triode

E2908

CV5331

B9A

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