Tube cross-reference
5725 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5725 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 5725
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.
6AS6W Voltage Pentode - Sharp Cutoff (single)
- Base
- 7CM
- Socket
- B7G
- Base pins
- 7
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.175 A
Replacement tubes for 5725
The following tubes are recorded as possible replacements for 5725. This direction does not establish that 5725 can replace them.
Voltage Pentode - Sharp Cutoff (single)
The database records 6187 as a possible replacement for5725.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | E7-1 | 7CM |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 6AS6W as a possible replacement for5725.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | E7-1 | 7CM |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Voltage Pentode
The database records M8196 as a possible replacement for5725.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | E7-1 | Not recorded |
| Socket | B7G | Not recorded |
| Base pins | 7 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Where 5725 can be used as the replacement
In these recorded relationships, 5725 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5725.
Voltage Pentode
The database records 5725 as a possible replacement forM8196.
No special restrictions are recorded for this substitution.
| Specification | 5725 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | E7-1 | Not recorded |
| Socket | B7G | Not recorded |
| Base pins | 7 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 5725 as a possible replacement for6187.
- Parallel heater circuits only
| Specification | 5725 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | E7-1 | 7CM |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 5725 as a possible replacement for6AS6W.
No special restrictions are recorded for this substitution.
| Specification | 5725 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | E7-1 | 7CM |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 5725 as a possible replacement for6AS6.
No special restrictions are recorded for this substitution.
| Specification | 5725 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | E7-1 | E7-1 |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.175 A | 0.175 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 5725 specifications →