Tube cross-reference
HL94 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the HL94 power - pentode single (not beam) (under 10w). Compare core specifications and verify every restriction before using a replacement.
Exact variations of HL94
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
30A5 Power - Pentode Single (NOT beam) (under 10W)
- Base
- E7-1
- Socket
- B7G
- Base pins
- 7
- Sections
- 1
- Heater voltage
- 30 V
- Heater current
- 0.15 A
Replacement tubes for HL94
The following tubes are recorded as possible replacements for HL94. This direction does not establish that HL94 can replace them.
Power - Pentode Single (NOT beam) (under 10W)
The database records 30A5 as a possible replacement forHL94.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode Single (NOT beam) (under 10W) | Power - Pentode Single (NOT beam) (under 10W) |
| Construction | Pentode | Pentode |
| Base | Not recorded | E7-1 |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 30 V | 30 V |
| Heater current | 0.15 A | 0.15 A |
Where HL94 can be used as the replacement
In these recorded relationships, HL94 is the replacement tube. The listed original tubes are not automatically suitable as replacements for HL94.
Power - Pentode Single (NOT beam) (under 10W)
The database records HL94 as a possible replacement for30A5.
No special restrictions are recorded for this substitution.
| Specification | HL94 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode Single (NOT beam) (under 10W) | Power - Pentode Single (NOT beam) (under 10W) |
| Construction | Pentode | Pentode |
| Base | Not recorded | E7-1 |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 30 V | 30 V |
| Heater current | 0.15 A | 0.15 A |
Power - Beam Single (NOT sweep) (under 10W)
The database records HL94 as a possible replacement for35C5.
No special restrictions are recorded for this substitution.
| Specification | HL94 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode Single (NOT beam) (under 10W) | Power - Beam Single (NOT sweep) (under 10W) |
| Construction | Pentode | BeamPower |
| Base | Not recorded | 7CV |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 30 V | 35 V |
| Heater current | 0.15 A | 0.15 A |
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 HL94 specifications →