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Originally Posted by Ed_Dinning
What sort of set is it, or what is the design based on?
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Hi Lee
I suspect one of the things that might have been in Ed's mind when he asked the above question is what HT voltage is the radio designed to run from. Using two silicon diodes from a 270-0-270 transformer is likely to give an HT voltage too high for a 3 valve TRF.
Sometimes restorers will use silicon diodes (hidden away) to replace a no longer available rectifier valve; when this is done they use a wire wound resistor in series with each diode to make a better job of simulating a valve rectifier. I would suggest you check what the HT voltage should be and experiment with the values of series resitors until you get it about right. Each resistor should be the same value of course; start with 100 ohms and work up as required.