20-12-2023, 02:15 PM
(This post was last modified: 20-12-2023, 02:18 PM by Mike Watterson.)
(20-12-2023, 01:57 PM)boater sam Wrote: This set needs a transformer of about 20:1 ratio. You could try a small 240v to 12v mains transformer, about the same ratio, and it should work just fine.The "trick" is to use a larger one than the dead audio transformer to avoid the bias current saturating the core.
I've even bought cheap clock radios out of Tesco, Argos or a charity shop to use the small mains transformer as audio on a battery valve radio.
