Quote:
Originally Posted by bobhowe
UPDATE adjusted the aerial trimmer vast improvement very clear reception and been listening to the radio for 4 hours a day since the 22nd of May & it has never faulted running nice and cool with the auto transformer from Ed Dinning & the UL44 valve is drawing less current than the UL41 valve kind regards Bob
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I bought a UL44, on your recommendation, and fitted it into my 90A last night.
I found the same as you, the volt drop across the 790 Ohm (Trader sheet says 500 Ohm) o/p tx primary was 16.9v with both the old (admittedly rather tired) UL41, and the NOS UL44, corresponding to an Ia of about 21mA.