02-01-2017, 09:31 PM
Hi Trevor, thank's for the offer of the SenTerCel rectifier, but now the 6X5GT HT rectifier valve is well and truly established in the radio. The radio is working at last, but it wasn't an easy fix. As a TRF this set has absolutely hopeless selectivity, the powerful Virgin Radio transmitter swamps out the adjacent stations Absolute Radio and Talksport. This is the candidate for conversion to become a minimalist superhet.
The W61 RF amplifier, the 6SH7 anode bend detector and the screen grid of the 6V6 output valve are supplied from only 120 volts HT. The anode of the 6V6 gets 240volts. The detector valve is surely on a starvation diet. the anode volts are 93, the screen grid 13volts and the cathode 1.5V. Anode current is about 60microamperes.
Geordie McBoyne.
The W61 RF amplifier, the 6SH7 anode bend detector and the screen grid of the 6V6 output valve are supplied from only 120 volts HT. The anode of the 6V6 gets 240volts. The detector valve is surely on a starvation diet. the anode volts are 93, the screen grid 13volts and the cathode 1.5V. Anode current is about 60microamperes.
Geordie McBoyne.
