NOS Philips B438 W410 Never Used Holland Made Triode Radio Audio Vacuum Tube
USD 72.48 USD
Specifications
| Brand | Philips |
| Type | Vacuum Tube |
| Model | B438 |
| Country Of Origin | Netherlands |
B438 ~ W410. Tube Type: B438 - Directly-Heated RF / IF Triode. Replaceable with slight differences: 2-438, R62, W420, M350S, M504 (among others). A UX4-base version of the B438 also exists. Confirm before any substitution.