Tube cross-reference
1620 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1620 voltage pentode - sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 1620
The following tubes are recorded as possible replacements for 1620. This direction does not establish that 1620 can replace them.
Voltage Radio Detector Converter
The database records 6J7 as a possible replacement for1620.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Radio Detector Converter |
| Construction | Pentode | Pentode |
| Base | 7R | 7R |
| Socket | IO | UX7 |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 1620 can be used as the replacement
In these recorded relationships, 1620 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1620.
Voltage Radio Detector Converter
The database records 1620 as a possible replacement for6J7.
No special restrictions are recorded for this substitution.
| Specification | 1620 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Radio Detector Converter |
| Construction | Pentode | Pentode |
| Base | 7R | 7R |
| Socket | IO | UX7 |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Radio Detector Converter
The database records 1620 as a possible replacement for6L7.
No special restrictions are recorded for this substitution.
| Specification | 1620 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Sharp Cutoff (single) | Voltage Radio Detector Converter |
| Construction | Pentode | Heptode |
| Base | 7R | 7T |
| Socket | IO | IO |
| Base pins | 7 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 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 1620 specifications →