Tube cross-reference
GY501 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the GY501 rectifier - tv line scan boost. Compare core specifications and verify every restriction before using a replacement.
Exact variations of GY501
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.
3BH2 Rectifier - TV Line Scan Boost
- Base
- Not recorded
- Socket
- Not recorded
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- 3.15 V
- Heater current
- 0.37 A
Replacement tubes for GY501
The following tubes are recorded as possible replacements for GY501. This direction does not establish that GY501 can replace them.
Rectifier - TV Line Scan Boost
The database records 3BH2 as a possible replacement forGY501.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | Not recorded |
| Socket | B9D | Not recorded |
| Base pins | 9 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 3.15 V | 3.15 V |
| Heater current | 0.4 A | 0.37 A |
Where GY501 can be used as the replacement
In these recorded relationships, GY501 is the replacement tube. The listed original tubes are not automatically suitable as replacements for GY501.
Rectifier - TV Line Scan Boost
The database records GY501 as a possible replacement for3BH2.
No special restrictions are recorded for this substitution.
| Specification | GY501 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - TV Line Scan Boost | Rectifier - TV Line Scan Boost |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | Not recorded |
| Socket | B9D | Not recorded |
| Base pins | 9 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 3.15 V | 3.15 V |
| Heater current | 0.4 A | 0.37 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 GY501 specifications →