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6HA7

Information - Help 
ID = 80033
       
 
   
Tube type:  Double Pentode 
Identical to 6HA7
Similar Tubes
Differences not known by us:
  6BU8

Base Noval, B9A
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / Indirect
Description

A twin pentode with sharp cut-off characteristics, developed for use in TV receivers, where one section is for AGC and the other for sync separation.

The cathode, control grid and screen grid are common to both the sections. The control grid serves as the noise gate for both the circuits.

However, there are two suppressor grids and two plates to separate sync output from one pentode and AGC voltage from the other.

 

 
 

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