09-07-2023, 05:42 PM
Hi everyone,
Thanks for your help given with this set so far. I am still trying to unravel the mysteries of what should be the simplest and most straightforward part of this set i.e. the pre 6A8 tuning section.
Someone has done some repairs on the #1coil ( and indeed on a lot of the rest of the set including fitting a new power transformer ) and left me in doubt about which is the primary and which the secondary.The repairs were brought about , i think, because the fine wires running down the inside of the coil had broken , perhaps because of greenspot or maybe lightning static build up. Either way plastic coated hookup wire was used to re-link coils to tags and lots of sticky insulating tape were wound round the coil.Taking off the insulating tape I may have inadvertently broken the fine coil wire attached to the black hookup wire - or it may have been open circuit anyway.
But now I am ready to resolder and put it all back together.
However one point of doubt has arisen.One coil, which I thought to be the primary has an ohmmeter reading of 26 ohms. The other has a reading of 2 ohms.Can phorum members clear this up for me ? Which would you say was the primary and which the secondary? Also, is 26 ohms on the high side for a coil in this position or does it seem about right?
I hope I have made this clear. Thanks everyone for your assistance and cheers.
Thanks for your help given with this set so far. I am still trying to unravel the mysteries of what should be the simplest and most straightforward part of this set i.e. the pre 6A8 tuning section.
Someone has done some repairs on the #1coil ( and indeed on a lot of the rest of the set including fitting a new power transformer ) and left me in doubt about which is the primary and which the secondary.The repairs were brought about , i think, because the fine wires running down the inside of the coil had broken , perhaps because of greenspot or maybe lightning static build up. Either way plastic coated hookup wire was used to re-link coils to tags and lots of sticky insulating tape were wound round the coil.Taking off the insulating tape I may have inadvertently broken the fine coil wire attached to the black hookup wire - or it may have been open circuit anyway.
But now I am ready to resolder and put it all back together.
However one point of doubt has arisen.One coil, which I thought to be the primary has an ohmmeter reading of 26 ohms. The other has a reading of 2 ohms.Can phorum members clear this up for me ? Which would you say was the primary and which the secondary? Also, is 26 ohms on the high side for a coil in this position or does it seem about right?
I hope I have made this clear. Thanks everyone for your assistance and cheers.
