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Tube cross-reference

108C1 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 108C1 voltage regulator. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 108C1

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.

  • 0B2

    Voltage Regulator

    Base
    B7G
    Socket
    B7G
    Base pins
    7
    Sections
    1
    Heater voltage
    0 V
    Heater current
    0 A
  • CV4028

    NEW (being researched)

    Base
    Not recorded
    Socket
    Not recorded
    Base pins
    Not recorded
    Sections
    1
    Heater voltage
    Not recorded
    Heater current
    Not recorded

Replacement tubes for 108C1

The following tubes are recorded as possible replacements for 108C1. This direction does not establish that 108C1 can replace them.

0B2

Voltage Regulator

American To Foreign

The database records 0B2 as a possible replacement for108C1.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage RegulatorVoltage Regulator
ConstructionVoltageRegulatorVoltageRegulator
BaseNot recordedB7G
SocketB7GB7G
Base pins77
Sections11
Heater voltageNot recorded0 V
Heater currentNot recorded0 A

Where 108C1 can be used as the replacement

In these recorded relationships, 108C1 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 108C1.

0B2

Voltage Regulator

Foreign To American

The database records 108C1 as a possible replacement for0B2.

No special restrictions are recorded for this substitution.

Specification108C1 replacementOriginal tube
Tube typeVoltage RegulatorVoltage Regulator
ConstructionVoltageRegulatorVoltageRegulator
BaseNot recordedB7G
SocketB7GB7G
Base pins77
Sections11
Heater voltageNot recorded0 V
Heater currentNot recorded0 A
6074

Voltage Regulator

Foreign To American

The database records 108C1 as a possible replacement for6074.

No special restrictions are recorded for this substitution.

Specification108C1 replacementOriginal tube
Tube typeVoltage RegulatorVoltage Regulator
ConstructionVoltageRegulatorVoltageRegulator
BaseNot recordedNot recorded
SocketB7GIO
Base pins78
Sections11
Heater voltageNot recordedNot recorded
Heater currentNot recordedNot recorded
6627

Voltage Regulator

Foreign To American

The database records 108C1 as a possible replacement for6627.

No special restrictions are recorded for this substitution.

Specification108C1 replacementOriginal tube
Tube typeVoltage RegulatorVoltage Regulator
ConstructionVoltageRegulatorVoltageRegulator
BaseNot recordedNot recorded
SocketB7GB7G
Base pins77
Sections11
Heater voltageNot recordedNot recorded
Heater currentNot recordedNot recorded

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 108C1 specifications →