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The Construction of the EF80
collections G8LSD Valve Collection |
The CV1376 is the UK Government procurement code for the EF80. It is an internally screened pentode and was a workhorse of the VHF TV receiver from when it was introduced in 1950.
The CV1376 (EF80) was much used for RF, intermediate frequency, and video amplification.
The circuit designer is given maximum flexibility by having all electrodes brought to external pins. Many pentodes have g3, the suppressor grid, internally connected to the cathode.
The thin glass tube envelope is 20 mm diameter and excluding the B9A base pins, is 57 mm tall.
Pin Connections
The CV1376 (EF80) was much used for RF, intermediate frequency, and video amplification.
The circuit designer is given maximum flexibility by having all electrodes brought to external pins. Many pentodes have g3, the suppressor grid, internally connected to the cathode.
The thin glass tube envelope is 20 mm diameter and excluding the B9A base pins, is 57 mm tall.
Pin Connections
The thin glass tube envelope is 20 mm diameter and excluding the B9A base pins, is 57 mm tall.
Pin Connections
Pin Connections
