using reels with different hubs?

[Laurevox]

Hello everybody!
I'm a total newbie, here on this forum AND with tape machines.

I got an old Revox A77 and I'm starting doing things with it,
recording as well.

For now I don't have so many reels, I mean empty reels,
I was wondering if I can use two reels with different
hub sizes...
For example, I have a new empty reel with NAB hub,
but the only empty (take up) reel lying around I've got
now has a trident hub...

What happens if I record something that way?
Will this affect something?
And what if I play back a tape recorded from a
trident hub but the take up reel it's a NAB?

I've serched the forum but didn't find an answer
to this.

Thank you very much for your answers, and
sorry if these are dumb questions.

Cheers!
Laura

[traf]

Hi Laura,
You can use different hubs w/o problem, as soon as the reels are of the same size. However, refrain from using different size of reels (e.g. 7" and 10.5") with this machine, for critical recordings/playback as this will affect the stability/range of tape tension, hence tape-head contact.

In other words, what matters is that the internal diameter of the reel, where the tape rolls on, is the same on both sides.

Best regards,
Tod

[Laurevox]

Hi Tod

what matters is that the internal diameter of the reel, where the tape rolls on, is the same on both sides.

Many thanks, now I get it!

And many thanks to all the contributors of this forum, I'm reading all the tech-related topics and I hope to learn as much as I can.

Kind regards,
Laura