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The CV136 is an audio output pentode valve for radio receiver use, commercially this was the 6AM5. In single ended configuration it will produce 1.4 Watts, enough for a receiver.

The CV specification demands full output at 100 MHz and so the intended use was not exclusively audio.

If used in push pull an output of 4 Watts is possible, but this valve was not expected to be used for hi fi.

See also EL91.

The anode has no gaps and obscures the inner electrodes.

The thin glass tube envelope is 17 mm in diameter and excluding the B7G base pins, is 44 mm tall.

References: Data-sheet & ¹⁰⁴⁰. Type CV136 was first introduced in 1949. See also 1949 adverts.

Pin Connections

Absolute Maximum Operating Conditions^¶

Thanks to Frank Philipse for supplying the above PDF datasheet.