0Z4 vs 6X5 full wave rectifiers question

[Texasrocker]

Thank You for sharing your vast yrs of experience on this subject Doug!! I learn from so much from you veterans that actually worked in those radio repair shops of the day!! Your input is always vastly appreciated on these type subjects indeed!! I did replace the old 6v vibrator tube to solid-state type by purchasing since I didnt have necessary components on hand to sub, on the old orig 47-53 Chev/GMC indash radio. The OZ4 tubes all had the same reputation from that era indeed of being "flaky" at best. A USAF retired radio tech "my teacher" (78 yrs young) most definately agrees with us on this subject in regards to vintage 6v auto type radios. Zenith did like the hype of tube-count to sell their sets in a push-pull audio stage. I agree that perhaps the 6X5s rectifiers got a bad rap from failing the home-radio sets, but must have been a much more reliable tube in a 6v auto radio. So says every tech that serviced many, many of the same sets from those yrs! Switching a couple filament wires around, and seems the current draw all worked just fine, and more reliable to boot! Back in those days, seems all the radio shops had 6X5s in stock always, and not many stocked OZ4s , especially in smaller towns. Just bet their were many conversions done that have since proved success, as it seems to be a great mod that isnt discussed much these days.