Home / Shop

25A7 Vacuum Tube New and Used

$10.00
25A7 Vacuum Tube New and Used
25A7 Vacuum Tube New and Used

Home / Shop

25A7 Vacuum Tube New and Used

$10.00
Model Number: 25A7NEW
Type 25A7-G 8-pin octal combination half-wave rectifier and power-amplifier pentode tube for AC/DC radio receivers. Available in new and used condition.
Missing Option: Options
Loading Available Options
Maximum quantity exceeded
Minimum purchase amount of 1 is required
Maximum purchase amount of 4 is allowed
Your Price: $10.00
10.000
A one-time price of $10.00 will be added to your order.
1 Left in Stock
Maximum purchase amount of 4 is allowed
Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
Facebook
X
Email
Pinterest
  • Description
  • Specifications

The 25A7-G (and 25A7-GT) is an 8-pin octal dual-unit combination tube containing an independent half-wave high-vacuum rectifier and a power-amplifier audio pentode in a single envelope. Designed specifically for compact line-operated AC/DC radio receivers, it allows a single tube to handle both power supply rectification and speaker audio output.

  • Tube Function: Dual-Unit Half-Wave Rectifier / Power-Amplifier Pentode

  • Base Design: 8-Pin Octal (K8A)

  • Glass Shape: ST-12 (25A7-G) or T-9 (25A7-GT)

  • Heater Voltage: 25.0 Volts AC / DC

  • Heater Current: 0.3 Amps (300 mA)

  • Rectifier Max AC Voltage: 125 Volts RMS

  • Rectifier Max DC Output Current: 75 mA

  • Pentode Max Plate Voltage: 117 Volts DC

  • Pentode Max Screen Grid Voltage: 117 Volts DC

  • Pentode Audio Power Output: ~0.77 Watts

  • Cathode Heating Method: Indirect (Unipotential)