09-06-2011, 09:14 PM
A quick question for the experts. Most of the tube radios I have take 20-30 seconds or more to warm up before you can tune in a station. I have a Philco 53-656 lunch box radio begins to play almost instantly, within 1 second, after I plug it in or turn it on. It is a tube radio that runs on AC or battery. Any idea why this model does not need any warmup time? Just curious.
Thanks - Jim
Thanks - Jim