50B5

50B5 has no equivalent designation confirmed by the archive. Completed sales put the typical price at $8.67 per tube.

What 50B5 Sells For
MeasurePer tube
Median$8.67
Typical range (25th–75th) $5.00 – $11.23
Most sales (10th–90th) $1.73 – $15.00
Extremes incl. outliers $1.73 – $15.00
Completed sales8
By Brand
BrandMedianRangeSales
GE$5.00 $5.00 – $8.243
By Condition
ConditionMedianSales
NOS$8.678

Per-tube prices from completed sales, 2026-03-06 to 2026-09-10. Matched pairs and quads are divided out. See the price index for how these move over time.

Datasheets

Original manufacturer datasheets for 50B5, hosted by Frank Philipse's Electron Tube Data sheets.

ManufacturerDesignationDatasheet
Mazda-Belvu 50B5 PDF (438 KB)
Sylvania 50B5 PDF (221 KB)
RCA (HB3) 50B5 PDF (206 KB)
Tung-Sol 50B5 PDF (123 KB)
In the Archive

Documents held here and used to write this page.