All vacuum tubes "4"
- 404060001
- 4025
- 484-3
- 404040004
- 42-5-10
- 427243N001
- 43C
- 48566
- 4852.0
- 4084
- 404060000
- 47-100100-BK
- 431015
- 4035S
- 4SPI40225
- 4SPI40224
- 42S
- 4SPI40220
- 436861-000
- 404040002
- 4-1194915-4
- 404030001
- 431002
- 4SPI26206
- 4033S
- 4SPI15213
- 4SPI80231
- 464644-000
- 431013
- 480
- 484-1
- 48527
- 4025
- 485-8C
- 4SPI80234
- 4SPI15210
- 42S
- 4083
- 4SPI40226
- 47-103100-BK
- 48530
- 4037S
- 4035SBK
- 4SPI15212
- 413119-000
- 474
- 4082
- 44S
- 4SPI80237
- 48556
- 47-105100-BK
- 455B
- 425
- 43S
- 42-4-LF
- 4SPI80230
- 474615-000
- 42-5-LF
- 486085-000
- 48571
- 488963N001
- 48510
- 4SPI15211
- 404040003
- 4SPI26201
- 4859370003
- 42S
- 42-6-LF
- 487101
- 4037SBK
- 4CT5B7
- 4CT5C6
- 45C
- 4SPI80232
- 4919360003
- 48569
- 43101.5
- 4039S
- 4CT5A6
- 4SPI26200
- 4033SBK
- 409136-000
- 4SPI80235
- 42D
- 4855-0
- 419293-000
- 418293-000
- 404040001
- 47-102100-BL
- 418262-000
- 455
- 404090001
- 484-2
- 485937-000
- 431001
- 443455N001