07-26-2014, 09:42 AM
About 6T5, the same electric equivalent is 6U5. In the first photo the wiring has been changed and in later photos it is probably restored. So do not go by the eye tube wiring from the first photo.
Also the socket of the eye tube is likely to lose that 1M resistor. I described there an easy way of fixing it without disassembling the socket.
Also the socket of the eye tube is likely to lose that 1M resistor. I described there an easy way of fixing it without disassembling the socket.