Re: Substitution of a KT61 in a 1948 Roberts P5A with something cheaper?
Hi Nick,
I have a used EL33 in my bits and pieces, the only thing that I can measure is that the heater is intact I cannot measure it for emissions. It is from an old Tandberg Radio from the late 40s.
Please drop me a pm if you want me to send it to you, I live in Norway, alternative I will be over in the Brighton East Sussex area in early March, the 10th until 13th if you want me to post it from there.
Tony
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