Tube cross-reference
LL500 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the LL500 power - tv horizontal output (sweep). Compare core specifications and verify every restriction before using a replacement.
Exact variations of LL500
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.
18GB5 Power - TV Horizontal Output (sweep)
- Base
- 9NH
- Socket
- B9A
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 18 V
- Heater current
- 0.45 A
Replacement tubes for LL500
The following tubes are recorded as possible replacements for LL500. This direction does not establish that LL500 can replace them.
Power - TV Horizontal Output (sweep)
The database records 18GB5 as a possible replacement forLL500.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - TV Horizontal Output (sweep) | Power - TV Horizontal Output (sweep) |
| Construction | BeamPower | BeamPower |
| Base | 9NH | 9NH |
| Socket | B9E | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 18 V | 18 V |
| Heater current | 0.45 A | 0.45 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 LL500 specifications →