First time poster. I just found this site. Not even sure if this is the right category, but here goes. I am restoring a WWII BC-348R receiver. The original audio output tube was a 6K6. But since this radio is missing its audio output transformer, and the radio does not even have an audio driver, it depends on a single 6K6 to drive the headphones used on board the bomber. There was no speaker. But I plan to replace the 6K6 with a 6V6 to get a little more power out of it to drive a speaker. The 6V6 will be single ended, and I'm having a little trouble selecting an audio output transformer for it to drive an 8 ohm speaker. I seem unable to pin down a number for the primary impedence for said transformer. Thank you.
Thanks. I had looked over those charts over and over and just plain missed it. Now, if I can just fine a plan I like for the power supply on this receiver, I'll be in business.
Hi, can anyone help me about testing of the audio transformers? how can I check the rated current of the transformer?
Check the rated current? Apply the amount of current the transformer is rated for and see how warm it gets. Of course that won't tell you if saturation is happening.