Tube cross-reference
4HG8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 4HG8 voltage triode pentode. Compare core specifications and verify every restriction before using a replacement.
No alternatives recorded
Tube Tinker does not currently have an exact variation or directional substitution recorded for 4HG8.
Verify before substituting
Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.
View the complete 4HG8 specifications →