This valve is equivalent to the EL32 audio output pentode.
The valve shown on the right has the marking GPO Batch Sampled 8288 marked on the base and M02 8612 on the glass. See below for other examples. See also CV5233.
*: At Va=Vg2=250, Vg1=-18.5, Ia=30mA
More examples. These measure 108x35mm. The valve on the left is simply marked CV1052 and the right one is marked both CV1052 and EL32 - this one carries the marking GPO Batch Sampled 4388 on the base.
Valves donated by Chris Colebrook and Bryan Lonsdale
This file was last modified
16:49:32, Monday April 17, 2023