GUIDE TO OCTAL SHELL

The standardization body JEDEC has made a very detailed numbered description of amarican Octal tube bases including the base/pin size, shell/sleeve hight, omitted pins, barriers e.t.c. The list includes more than 110 different Octal bases

 

OCTAL SHELL:

Shell:
Octal Dwarf shell
Octal Small shell

Intermediate shell:
Octal Short Intermediate shell
Octal Short Intermediate shell barrier
Octal Intermediate shell
Octal Intermediate shell barrier

Medium shell:
Octal Short medium shell barrier A
Octal Short medium shell barrier B
Octal Medium shell
Octal Long medium shell

Jumbo shell:
Short Jumbo shell barrier

OCTAL WAFER:

Small wafer:
Octal Ultra short small wafer barrier
Octal Small thin wafer
Octal Small wafer for8-pin base
Octal Small wafer barrier for 8-pin base
Octal Small wafer with metal tube
Octal Small wafer barrier with metal tube
Octal Small H-wafer

Small wafer sleeve
Octal Small wafer skirted metal sleeve
Octal Small wafer 640-sleeve
Octal Small wafer 704-sleeve
Octal Small wafer 770-sleeve
Octal Small wafer barrier 770-sleeve
Octal Small wafer 843-sleeve
Octal Small wafer 865-sleeve
Octal Small wafer 950-sleeve

Large wafer:
Octal Large wafer for 8-pin base
Octal Large wafer 770-sleeve
Octal Large wafer flared sleeve
Octal Large wafer with barrier for 8-pin base
Octal Large wafer barrier

OCTAL COAXIAL:

Octal Coaxcial lead type 1
Octal Coaxcial lead type 2
Octal Coaxcial lead type 3

OCTAL EU
Small base
Medium base
Small wafer sleeve
Small wafer recessed barrier
Small wafer recessed barrier
Small wafer 15mm sleeve

OCTAL BRITISH
Mazda small base
Mazda medium base

 


 

JEDEC Octal base list sorted by PIN count

JEDEC Octal base list soretd by base CODE

 

Octal Base diameter:
mm
inch
Dwarf-shell:
26.24 - 26.97
1.033 - 1.062
Small-shell:
28.86 - 29.84
1.136 - 1.175
Intermediate-shell:
31.37 - 32.38
1.235 - 1.275
Medium-shell:
33.96 - 34.97
1.337 - 1,277
Jumbo-shell:
42.04 - 43,05
1.655 - 1.695
Ultra-short-small-wafer:
25,9
Small-wafer EU:
29.8
Small-wafer:
32.29 - 33.32
1.271 - 1.312
H-wafer:
32.29 - 33.32
1.271 - 1.312
Large -wafer:
42.60 - 43.63
1.677 - 1.718

 

Octal Base/sleeve hight:
mm
inch
Dwarf-EU-shell:
18,6
Dwarf-shell:
20.63
0.812
Small-EU-shell:
14,0
Small-shell:
21.41
0.843
Short Intermediate-shell:
16.89
0.665
Intermediate-shell:
21.41
0.843
Short Medium-shell:
18.42
0.725
Medium-shell:
27.61
1.087
Medium-EU-shell:
16,9
Short Jumbo-shell:
21.72
0.855
Ultra-short-small-wafer
5,90
Small-wafer:
2.54
0.100
H-wafer
5,9
Small-wafer with 640 sleeve:
16.26
0.640
Small-wafer with 770 sleeve:
19.56
0.770
Small-wafer with 843 sleeve:
21.41
0.843
Small-wafer with 950 sleeve:
24.13
0.950
Large -wafer with 770 sleeve:
19.56
0.770
Large -wafer with flared sleeve:
43.12
1.225

 

 

 

 

 

JEDEC Octal base list soretd by base CODE

 Code
Serial no.
Pins
Shell
pin count
B 5-  5 B-  5  8 pin small pin: 1,2,-,4,5,6,-,8
B 5- 10 B- 10  5 pin Intermediate pin: 1,-,3,-,5,-,7,8
B 5- 15 B- 15  5 pin medium pin: 1,2,-,4,-,6,-,8
B 5- 25 B- 25  5 pin small wafer pin: 1,2,-,4,-,6,-,8
B 5- 30 B- 30  5 pin small wafer with 843 sleeve pin: 1,2,-,4,-,6,-,8
B 5- 49 B- 49  5 pin short intermediate pin: 1,2,-,4,-,6,-,8
B 5- 62 B- 62  5 pin short medium with ext barriers pin: 1,2,-,4,-,6,-,8
B 5- 70 B- 70  5 pin small wafer with ext. barriers pin: 1,2,-,4,-,6,-,8
B 5- 74 B- 74  5 pin short-jumbo with ext barriers pin: 1,2,-,4,-,6,-,8
B 5- 80 B- 80  5 pin long medium pin: -,2,3,-,5,-,7,8
B 5- 82 B- 82  5 pin Intermediate pin: -,2,3,-,5,-,7,8
B 5- 85 B- 85  5 pin short medium with ext barriers pin: -,2,3,-,5,-,7,8
B 5- 97 B- 97  5 pin large wafer with ext. barriers pin: 1,2,-,4,5,6,-,8
B 5-101 B-101  5 pin large wafer with 770 sleeve and barriers pin: 1,2,-,4,-,6,-,8
B 5-113 B-113  5 pin short medium with ext barriers style A pin: 1,2,-,4,-,6,-,8
B 5-121 B-121  5 pin short medium with ext barriers style B pin: 1,2,-,4,-,6,-,8
B 5-123 B-123  5 pin short medium with ext barriers style B pin: -,2,3,-,5,-,7,8
B 5-146 B-146  5 pin Intermediate with ext barriers pin: 1,2,-,4,-,6,-,8
B 5-147 B-147  5 pin Intermediate with ext barriers pin: -,2,3,-,5,-,7,8
B 5-149 B-149  5 pin short medium with ext barriers style A pin: -,2,3,-,5,-,7,8
B 5-154 B-154  5 pin small wafer with 770 sleeve pin: 1,2,-,4,-,6,-,8
B 5-155 B-155  5 pin small wafer with 770 sleeve pin: -,2,3,-,5,-,7,8
B 5-163 B-163  5 pin small wafer with 770 sleeve and ext barr pin: 1,2,-,4,-,6,-,8
B 5-164 B-164  5 pin small wafer with 770 sleeve and ext barr pin: -,2,3,-,5,-,7,8
B 5-187 B-187  5 pin short medium with ext barriers pin: -,2,-,4,5,-,7,8
B 5-190 B-190  5 pin short medium with ext barriers style B pin: -,2,-,4,5,-,7,8
B 5-195 B-195  5 pin small wafer with 950 sleeve pin: 1,2,-,4,-,6,-,8
B 5-196 B-196  5 pin small wafer with 950 sleeve pin: -,2,3,-,5,-,7,8
B 5-201 B-201  5 pin small wafer with 950 sleeve and ext barr pin: 1,2,-,4,-,6,-,8
B 5-202 B-202  5 pin small wafer with 950 sleeve and ext barr pin: -,2,3,-,5,-,7,8
B 5-206 B-206  5 pin small wafer with ext. barriers pin: -,2,3,-,5,-,7,8
B 5-215 B-215  5 pin small
B 5-224 B-224  5 pin medium pin: -,2,3,-,5,-,7,8
B 5-234 B-234  5 pin short medium with ext barriers style A pin: 1,2,3,-,5,-,7,-
B 5-239 B-239  5 pin short medium with ext barriers style B pin: 1,2,3,-,5,-,7,-
B 6-  3 B-  3  6 pin small pin: 1,2,3,-,5,-,7,8
B 6-  8 B-  8  6 pin Intermediate pin: 1,2,3,-,5,-,7,8
B 6- 13 B- 13  6 pin medium pin: 1,2,3,-,5,-,7,8
B 6- 23 B- 23  6 pin small wafer pin: 1,2,3,-,5,-,7,8
B 6- 28 B- 28  6 pin small wafer with 843 sleeve pin: 1,2,3,-,5,-,7,8
B 6- 48 B- 48  6 pin short intermediate pin: 1,2,3,-,5,-,7,8
B 6- 60 B- 60  6 pin short medium with ext barriers pin: 1,2,3,-,5,6,7,8
B 6- 69 B- 69  6 pin small wafer with ext. barriers pin: 1,2,3,-,5,-,7,8
B 6- 73 B- 73  6 pin short-jumbo with ext barriers pin: 1,2,3,-,5,-,7,8
B 6- 81 B- 81  6 pin Intermediate pin: -,2,3,4,5,-,7,8
B 6- 84 B- 84  6 pin short medium with ext barriers pin: -,2,3,4,5,-,7,8
B 6- 96 B- 96  6 pin large wafer with ext. barriers pin: 1,2,3,-,5,-,7,8
B 6-100 B-100  6 pin large wafer with 770 sleeve and barriers pin: 1,2,3,-,5,-,7,8
B 6-108 B-108  6 pin small H-wafer
B 6-112 B-112  6 pin short medium with ext barriers style A pin: 1,2,3,-,5,-,7,8
B 6-120 B-120  6 pin short medium with ext barriers style B pin: 1,2,3,-,5,-,7,8
B 6-122 B-122  6 pin short medium with ext barriers style B pin: -,2,3,4,5,-,7,8
B 6-144 B-144  6 pin Intermediate with ext barriers pin: 1,2,3,-,5,-,7,8
B 6-145 B-145  6 pin Intermediate with ext barriers pin: -,2,3,4,5,-,7,8
B 6-148 B-148  6 pin short medium with ext barriers style A pin: -,2,3,4,5,-,7,8
B 6-152 B-152  6 pin small wafer with 770 sleeve pin: 1,2,3,-,5,-,7,8
B 6-153 B-153  6 pin small wafer with 770 sleeve pin: -,2,3,4,5,-,7,8
B 6-161 B-161  6 pin small wafer with 770 sleeve and ext barr pin: 1,2,3,-,5,-,7,8
B 6-162 B-162  6 pin small wafer with 770 sleeve and ext barr pin: -,2,3,-,5,-,7,8
B 6-193 B-193  6 pin small wafer with 950 sleeve pin: 1,2,3,-,5,-,7,8
B 6-194 B-194  6 pin small wafer with 950 sleeve pin: -,2,3,4,5,-,7,8
B 6-199 B-199  6 pin small wafer with 950 sleeve and ext barr pin: 1,2,3,-,5,-,7,8
B 6-200 B-200  6 pin small wafer with 950 sleeve and ext barr pin: -,2,3,4,5,-,7,8
B 6-205 B-205  6 pin small wafer with ext. barriers pin: -,2,3,4,5,-,7,8
B 6-229 B-229  6 pin Intermediate with ext barriers pin: -,2,3,-,5,6,7,8
B 7-  2 B-  2  8 pin small pin: 1,2,3,4,5,-,7,8
B 7-  7 B-  7  7 pin Intermediate pin: 1,2,3,4,5,-,7,8
B 7- 12 B- 12  7 pin medium pin: 1,2,3,4,5,-,7,8
B 7- 22 B- 22  7 pin small wafer pin: 1,2,3,4,5,-,7,8
B 7- 27 B- 27  7 pin small wafer with 843 sleeve pin: 1,2,3,4,5,-,7,8
B 7- 47 B- 47  7 pin short intermediate pin: 1,2,3,4,5,-,7,8
B 7- 59 B- 59  7 pin short medium with ext barriers pin: 1,2,3,4,5,-,7,8
B 7- 68 B- 68  7 pin small wafer with ext. barriers pin: 1,2,3,4,5,-,7,8
B 7- 72 B- 72  7 pin short-jumbo with ext barriers pin: 1,2,3,4,5,-,7,8
B 7- 95 B- 95  7 pin large wafer with ext. barriers pin: 1,2,3,4,5,-,7,8
B 7- 99 B- 99  7 pin large wafer with 770 sleeve and barriers pin: 1,2,3,4,5,-,7,8
B 7-111 B-111  7 pin short medium with ext barriers style A pin: 1,2,3,4,5,-,7,8
B 7-119 B-119  7 pin short medium with ext barriers style B pin: 1,2,3,4,5,-,7,8
B 7-143 B-143  7 pin Intermediate with ext barriers pin: 1,2,3,4,5,-,7,8
B 7-151 B-151  7 pin small wafer with 770 sleeve pin: 1,2,3,4,5,-,7,8
B 7-160 B-160  7 pin small wafer with 770 sleeve and ext barr pin: 1,2,3,4,5,-,7,8
B 7-166 B-166  7 pin Intermediate pin: 1,2,3,-,5,6,7,8
B 7-192 B-192  7 pin small wafer with 950 sleeve pin: 1,2,3,4,5,-,7,8
B 7-198 B-198  7 pin small wafer with 950 sleeve and ext barr pin: 1,2,3,4,5,-,7,8
B 7-211 B-211  7 pin short medium with ext barriers pin: 1,2,3,-,5,6,7,8
B 7-227 B-227  7 pin short medium with ext barriers style B pin: 1,2,3,-,5,6,7,8
B 7-235 B-235  7 pin short medium with ext barriers style B pin: 1,2,3,4,-,6,7,8
B 8-  1 B-  1  8 pin small pin: 1,2,3,4,5,6,7,8
B 8-  6 B-  6  8 pin Intermediate pin: 1,2,3,4,5,6,7,8
B 8- 11 B- 11  8 pin medium pin: 1,2,3,4,5,6,7,8
B 8- 21 B- 21  8 pin small wafer pin: 1,2,3,4,5,6,7,8
B 8- 26 B- 26  8 pin small wafer with 843 sleeve pin: 1,2,3,4,5,6,7,8
B 8- 32 B- 32  8 pin large wafer pin: 1,2,3,4,5,6,7,8
B 8- 44 B- 44  8 pin small wafer with 640 sleeve pin: 1,2,3,4,5,6,7,8
B 8- 46 B- 46  8 pin short intermediate pin: 1,2,3,4,5,6,7,8
B 8- 58 B- 58  8 pin short medium with ext barriers pin: 1,2,3,4,5,6,7,8
B 8- 65 B- 65  8 pin long medium pin: 1,2,3,4,5,6,7,8
B 8- 67 B- 67  8 pin small wafer with ext. barriers pin: 1,2,3,4,5,6,7,8
B 8- 71 B- 71  8 pin short-jumbo with ext barriers pin: 1,2,3,4,5,6,7,8
B 8- 86 B- 86  8 pin large wafer with 770 sleeve pin: 1,2,3,4,5,6,7,8
B 8- 94 B- 94  8 pin large wafer with ext. barriers pin: 1,2,3,4,5,6,7,8
B 8- 98 B- 98  8 pin large wafer with 770 sleeve and barriers pin: 1,2,3,4,5,6,7,8
B 8-110 B-110  8 pin short medium with ext barriers style A pin: 1,2,3,4,5,6,7,8
B 8-118 B-118  8 pin short medium with ext barriers style B pin: 1,2,3,4,5,6,7,8
B 8-142 B-142  8 pin Intermediate with ext barriers pin: 1,2,3,4,5,6,7,8
B 8-150 B-150  8 pin small wafer with 770 sleeve pin: 1,2,3,4,5,6,7,8
B 8-159 B-159  8 pin small wafer with 770 sleeve and ext barr pin: 1,2,3,4,5,6,7,8
B 8-188 B-188  8 pin large wafer with flared sleeve pin: 1,2,3,4,5,6,7,8
B 8-191 B-191  8 pin small wafer with 950 sleeve pin: 1,2,3,4,5,6,7,8
B 8-197 B-197  8 pin small wafer with 950 sleeve and ext barr pin: 1,2,3,4,5,6,7,8
B 8-251 B-251  8 pin pin: 1,2,3,4,5,6,7,8
B 8-261 B-261  8 pin pin: 1,2,3,4,5,6,7,8
B 8-264 B-264  8 pin pin: 1,2,3,4,5,6,7,8

 

 

JEDEC Octal base list sorted by serial NUMBER

Serial no.
Code
Pins
Shell
pin count
B-  1 B 8-  1  8 pin small pin: 1,2,3,4,5,6,7,8
B-  2 B 7-  2  8 pin small pin: 1,2,3,4,5,-,7,8
B-  3 B 6-  3  6 pin small pin: 1,2,3,-,5,-,7,8
B-  5 B 5-  5  8 pin small pin: 1,2,-,4,5,6,-,8
B-  6 B 8-  6  8 pin Intermediate pin: 1,2,3,4,5,6,7,8
B-  7 B 7-  7  7 pin Intermediate pin: 1,2,3,4,5,-,7,8
B-  8 B 6-  8  6 pin Intermediate pin: 1,2,3,-,5,-,7,8
B- 10 B 5- 10  5 pin Intermediate pin: 1,-,3,-,5,-,7,8
B- 11 B 8- 11  8 pin medium pin: 1,2,3,4,5,6,7,8
B- 12 B 7- 12  7 pin medium pin: 1,2,3,4,5,-,7,8
B- 13 B 6- 13  6 pin medium pin: 1,2,3,-,5,-,7,8
B- 15 B 5- 15  5 pin medium pin: 1,2,-,4,-,6,-,8
B- 21 B 8- 21  8 pin small wafer pin: 1,2,3,4,5,6,7,8
B- 22 B 7- 22  7 pin small wafer pin: 1,2,3,4,5,-,7,8
B- 23 B 6- 23  6 pin small wafer pin: 1,2,3,-,5,-,7,8
B- 25 B 5- 25  5 pin small wafer pin: 1,2,-,4,-,6,-,8
B- 26 B 8- 26  8 pin small wafer with 843 sleeve pin: 1,2,3,4,5,6,7,8
B- 27 B 7- 27  7 pin small wafer with 843 sleeve pin: 1,2,3,4,5,-,7,8
B- 28 B 6- 28  6 pin small wafer with 843 sleeve pin: 1,2,3,-,5,-,7,8
B- 30 B 5- 30  5 pin small wafer with 843 sleeve pin: 1,2,-,4,-,6,-,8
B- 32 B 8- 32  8 pin large wafer pin: 1,2,3,4,5,6,7,8
B- 44 B 8- 44  8 pin small wafer with 640 sleeve pin: 1,2,3,4,5,6,7,8
B- 46 B 8- 46  8 pin short intermediate pin: 1,2,3,4,5,6,7,8
B- 47 B 7- 47  7 pin short intermediate pin: 1,2,3,4,5,-,7,8
B- 48 B 6- 48  6 pin short intermediate pin: 1,2,3,-,5,-,7,8
B- 49 B 5- 49  5 pin short intermediate pin: 1,2,-,4,-,6,-,8
B- 58 B 8- 58  8 pin short medium with ext barriers pin: 1,2,3,4,5,6,7,8
B- 59 B 7- 59  7 pin short medium with ext barriers pin: 1,2,3,4,5,-,7,8
B- 60 B 6- 60  6 pin short medium with ext barriers pin: 1,2,3,-,5,6,7,8
B- 62 B 5- 62  5 pin short medium with ext barriers pin: 1,2,-,4,-,6,-,8
B- 65 B 8- 65  8 pin long medium pin: 1,2,3,4,5,6,7,8
B- 67 B 8- 67  8 pin small wafer with ext. barriers pin: 1,2,3,4,5,6,7,8
B- 68 B 7- 68  7 pin small wafer with ext. barriers pin: 1,2,3,4,5,-,7,8
B- 69 B 6- 69  6 pin small wafer with ext. barriers pin: 1,2,3,-,5,-,7,8
B- 70 B 5- 70  5 pin small wafer with ext. barriers pin: 1,2,-,4,-,6,-,8
B- 71 B 8- 71  8 pin short-jumbo with ext barriers pin: 1,2,3,4,5,6,7,8
B- 72 B 7- 72  7 pin short-jumbo with ext barriers pin: 1,2,3,4,5,-,7,8
B- 73 B 6- 73  6 pin short-jumbo with ext barriers pin: 1,2,3,-,5,-,7,8
B- 74 B 5- 74  5 pin short-jumbo with ext barriers pin: 1,2,-,4,-,6,-,8
B- 80 B 5- 80  5 pin long medium pin: -,2,3,-,5,-,7,8
B- 81 B 6- 81  6 pin Intermediate pin: -,2,3,4,5,-,7,8
B- 82 B 5- 82  5 pin Intermediate pin: -,2,3,-,5,-,7,8
B- 84 B 6- 84  6 pin short medium with ext barriers pin: -,2,3,4,5,-,7,8
B- 85 B 5- 85  5 pin short medium with ext barriers pin: -,2,3,-,5,-,7,8
B- 86 B 8- 86  8 pin large wafer with 770 sleeve pin: 1,2,3,4,5,6,7,8
B- 94 B 8- 94  8 pin large wafer with ext. barriers pin: 1,2,3,4,5,6,7,8
B- 95 B 7- 95  7 pin large wafer with ext. barriers pin: 1,2,3,4,5,-,7,8
B- 96 B 6- 96  6 pin large wafer with ext. barriers pin: 1,2,3,-,5,-,7,8
B- 97 B 5- 97  5 pin large wafer with ext. barriers pin: 1,2,-,4,5,6,-,8
B- 98 B 8- 98  8 pin large wafer with 770 sleeve and barriers pin: 1,2,3,4,5,6,7,8
B- 99 B 7- 99  7 pin large wafer with 770 sleeve and barriers pin: 1,2,3,4,5,-,7,8
B-100 B 6-100  6 pin large wafer with 770 sleeve and barriers pin: 1,2,3,-,5,-,7,8
B-101 B 5-101  5 pin large wafer with 770 sleeve and barriers pin: 1,2,-,4,-,6,-,8
B-108 B 6-108  6 pin small H-wafer
B-110 B 8-110  8 pin short medium with ext barriers style A pin: 1,2,3,4,5,6,7,8
B-111 B 7-111  7 pin short medium with ext barriers style A pin: 1,2,3,4,5,-,7,8
B-112 B 6-112  6 pin short medium with ext barriers style A pin: 1,2,3,-,5,-,7,8
B-113 B 5-113  5 pin short medium with ext barriers style A pin: 1,2,-,4,-,6,-,8
B-118 B 8-118  8 pin short medium with ext barriers style B pin: 1,2,3,4,5,6,7,8
B-119 B 7-119  7 pin short medium with ext barriers style B pin: 1,2,3,4,5,-,7,8
B-120 B 6-120  6 pin short medium with ext barriers style B pin: 1,2,3,-,5,-,7,8
B-121 B 5-121  5 pin short medium with ext barriers style B pin: 1,2,-,4,-,6,-,8
B-122 B 6-122  6 pin short medium with ext barriers style B pin: -,2,3,4,5,-,7,8
B-123 B 5-123  5 pin short medium with ext barriers style B pin: -,2,3,-,5,-,7,8
B-142 B 8-142  8 pin Intermediate with ext barriers pin: 1,2,3,4,5,6,7,8
B-143 B 7-143  7 pin Intermediate with ext barriers pin: 1,2,3,4,5,-,7,8
B-144 B 6-144  6 pin Intermediate with ext barriers pin: 1,2,3,-,5,-,7,8
B-145 B 6-145  6 pin Intermediate with ext barriers pin: -,2,3,4,5,-,7,8
B-146 B 5-146  5 pin Intermediate with ext barriers pin: 1,2,-,4,-,6,-,8
B-147 B 5-147  5 pin Intermediate with ext barriers pin: -,2,3,-,5,-,7,8
B-148 B 6-148  6 pin short medium with ext barriers style A pin: -,2,3,4,5,-,7,8
B-149 B 5-149  5 pin short medium with ext barriers style A pin: -,2,3,-,5,-,7,8
B-150 B 8-150  8 pin small wafer with 770 sleeve pin: 1,2,3,4,5,6,7,8
B-151 B 7-151  7 pin small wafer with 770 sleeve pin: 1,2,3,4,5,-,7,8
B-152 B 6-152  6 pin small wafer with 770 sleeve pin: 1,2,3,-,5,-,7,8
B-153 B 6-153  6 pin small wafer with 770 sleeve pin: -,2,3,4,5,-,7,8
B-154 B 5-154  5 pin small wafer with 770 sleeve pin: 1,2,-,4,-,6,-,8
B-155 B 5-155  5 pin small wafer with 770 sleeve pin: -,2,3,-,5,-,7,8
B-159 B 8-159  8 pin small wafer with 770 sleeve and ext barrier pin: 1,2,3,4,5,6,7,8
B-160 B 7-160  7 pin small wafer with 770 sleeve and ext barrier pin: 1,2,3,4,5,-,7,8
B-161 B 6-161  6 pin small wafer with 770 sleeve and ext barrier pin: 1,2,3,-,5,-,7,8
B-162 B 6-162  6 pin small wafer with 770 sleeve and ext barrier pin: -,2,3,-,5,-,7,8
B-163 B 5-163  5 pin small wafer with 770 sleeve and ext barrier pin: 1,2,-,4,-,6,-,8
B-164 B 5-164  5 pin small wafer with 770 sleeve and ext barrier pin: -,2,3,-,5,-,7,8
B-166 B 7-166  7 pin Intermediate pin: 1,2,3,-,5,6,7,8
B-187 B 5-187  5 pin short medium with ext barriers pin: -,2,-,4,5,-,7,8
B-188 B 8-188  8 pin large wafer with flared sleeve pin: 1,2,3,4,5,6,7,8
B-190 B 5-190  5 pin short medium with ext barriers style B pin: -,2,-,4,5,-,7,8
B-191 B 8-191  8 pin small wafer with 950 sleeve pin: 1,2,3,4,5,6,7,8
B-192 B 7-192  7 pin small wafer with 950 sleeve pin: 1,2,3,4,5,-,7,8
B-193 B 6-193  6 pin small wafer with 950 sleeve pin: 1,2,3,-,5,-,7,8
B-194 B 6-194  6 pin small wafer with 950 sleeve pin: -,2,3,4,5,-,7,8
B-195 B 5-195  5 pin small wafer with 950 sleeve pin: 1,2,-,4,-,6,-,8
B-196 B 5-196  5 pin small wafer with 950 sleeve pin: -,2,3,-,5,-,7,8
B-197 B 8-197  8 pin small wafer with 950 sleeve and ext barrier pin: 1,2,3,4,5,6,7,8
B-198 B 7-198  7 pin small wafer with 950 sleeve and ext barrier pin: 1,2,3,4,5,-,7,8
B-199 B 6-199  6 pin small wafer with 950 sleeve and ext barrier pin: 1,2,3,-,5,-,7,8
B-200 B 6-200  6 pin small wafer with 950 sleeve and ext barrier pin: -,2,3,4,5,-,7,8
B-201 B 5-201  5 pin small wafer with 950 sleeve and ext barrier pin: 1,2,-,4,-,6,-,8
B-202 B 5-202  5 pin small wafer with 950 sleeve and ext barrier pin: -,2,3,-,5,-,7,8
B-205 B 6-205  6 pin small wafer with ext. barriers pin: -,2,3,4,5,-,7,8
B-206 B 5-206  5 pin small wafer with ext. barriers pin: -,2,3,-,5,-,7,8
B-211 B 7-211  7 pin short medium with ext barriers pin: 1,2,3,-,5,6,7,8
B-215 B 5-215  5 pin small
B-224 B 5-224  5 pin medium pin: -,2,3,-,5,-,7,8
B-227 B 7-227  7 pin short medium with ext barriers style B pin: 1,2,3,-,5,6,7,8
B-229 B 6-229  6 pin Intermediate with ext barriers pin: -,2,3,-,5,6,7,8
B-234 B 5-234  5 pin short medium with ext barriers style A pin: 1,2,3,-,5,-,7,-
B-235 B 7-235  7 pin short medium with ext barriers style B pin: 1,2,3,4,-,6,7,8
B-239 B 5-239  5 pin short medium with ext barriers style B pin: 1,2,3,-,5,-,7,-
B-251 B 8-251  8 pin pin: 1,2,3,4,5,6,7,8
B-261 B 8-261  8 pin pin: 1,2,3,4,5,6,7,8
B-264 B 8-264  8 pin pin: 1,2,3,4,5,6,7,8

"Guide to determining Radio Tube Bases"

"JEDEC list all bases"

JEDEC to EIMAC cross reference list

"Tube bulb size"

Copyright 2011-2023 Just N. Qvigstad - Regarding copying pictures and text please send me an E-mail.