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List of Valves by Designation with Equivalent Types

L2

1931

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.1	150	-3.8	4.0	12,500	1.5

 
210LF AR9 CV1307 CV3531 L21 VR21 VR22

L21

1933

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.1	150	-4.5	4.8	10,000	1.4

 
210LF AR9 CV1307 CV3532 L2 VR21

L210

1929

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	Pout
	2.0	0.1	150	-6	4.2	7,500	1.6	0.06W

 
210LF CV1027 VR27

L21DD

1934

B5	1	2	3	4	5	tc
	a	a(d1)	f(-)	f(+)	a(d2)	g1

 
Double Diode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.1	150	-1.5	1.1	28,600	1.4

 
AR10 CV1308 HD24 TDD2A

L22DD

1939

Double Diode Triode

CV3533

L30

1934

Triode

CV3534

L4

Triode

L410

1929

Triode

410LF CV1152 NR15A PM4DX

L414

1930

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	4.0	0.15	200	-20	20	1,700	1.0

 
B409

L610

1929

Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	Pout
	6.0	0.1	150	-9	9.5	3,500	2.3	0.07W

 
CV3538

L63

1938

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

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.3	250	-8	9	7,700	2.6

 
6C5 6J5G CV1067 CV1932 VR67 VT154

L71

Triode

L77

1951

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

 
Triode

Triode	Vh	Ah	Va	mAa	gm	Pdriv	Pout	Pdiss	freq	f.max
	6.3	0.15	250	10.5	2.2	0.35W	5.5W	5W	70	150

 
6C4 CV0133 EC90 V741 CV1932

LCF86

Triode Pentode

5HG8

LD210

1935

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.1	150	-4.5	3.0	14,000	1.3

 
CV502 HLB1 210DET 210LF HL2 TB102 TB172 K30D K30E L2 L21 L210 PM1LF PM2DX PM2DL SD2 A214 SS210D

LF

1924

Triode

LF407

1928

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	ra	gm	μ
	4.0	0.075	120	-	5,700	1.4	8

 
 

LG210

1930

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.1	150	-8	6.0	10,000	1.0

 
 

LL4

1937

Triode

41MXP ACP1 O54V PA1

LN119

B9A	1	2	3	4	5	6	7	8	9
	g1(t)	k,g3,S	g1	h	h	a	g2	k(t)	a(t)

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pdiss	Pout	D
	50	0.1	250	250	-22.5	28	5.5	25,000	5.0	7.0W	3.4W	10%

 
10PL12 50BM8 UCL82

LN152

1952

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

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.3	200	200	-8	17.5	3.3	25k	5

 
63TP 6AB8 ECL80

LN309

1953

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

 
CV5144 PCL83

LN319

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

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	Pout	D
	13	0.3	170	180	-9.6	28	6.5	6.5	2.0W	7%

 
30PL1 13GC8 PCL801

LP2

1930

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.2	150	-4.5	10.0	4000	4.0

 
AR6 CV0548 CV1162 CV1166 CV1304 NR42 VR22 220PA 230C P12-250

LP220

1935

Triode

LP 4

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	2.0	0.2	150	-4.5	10.0	4000	4.0

 
 

LP4

1933

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	Pout	D
	4.0	1.0	300	-50	50	830	6.0	4.5	4%

 
4XP AC044 CV1168 NR44 P12/250 PP3/250 PX4

LS2

1923

Triode

LS5

1923

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	μ
	4.5	0.8	400	-20	-	6,000	0.83	5

 
CV1637

LS5A

1924

Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	Pdiss
	4.5	0.8	60-400	-20	-	2750	0.91	10W

 
 

LS5B

1927

Triode

Triode	Vh	Ah	Va	Vg	ra	gm	μ
	4.5	0.8	60-400	-3	30k	0.83	25

 
 

LS6A

1929

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.0	1.6	400	-93	63.0	1,300	2.3

 
CV3541

LS9B

B4	1	2	3	4
	a	g1	f	f

 
Triode

Triode	Vh	Ah	Va	Vg	mAa	ra	μ
	2.0	0.15	150	-1.5	-	50,000	30

 
 

LSD3

Flash Tube

Flash Tube	Va
	2,500

 
 

LV1

1941

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

 
Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	12.6	0.21	250	200	-2.5	20	2.5	0.2M	9.5

 
 

LZ319

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

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	9	0.3	170	170	-5.5	10.0	2.0	0.87M	2.1

 
30C1 9A8 LZ329 PCF80

LZ329

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

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	9	0.3	170	145	-5.5	6.8	2.0	0.8M	2.0

 
30C1 9A8 LZ319 PCF80

LZ339

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

 
Triode Pentode

Pentode	Vh	Ah	Va	Vs	mAa	mAs	ra	gm
	9.0	0.3	164	138	7.6	2.3	0.6M	3.3

 
30C15 PCF800 9EN7 LZ319