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Old 10th Jan 2023, 1:36 pm   #126
Bazz4CQJ
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Join Date: Apr 2009
Location: Oxfordshire, UK.
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Default Re: Questions on 160/80 metre AM transmitters.

Quote:
Originally Posted by Aub View Post
For best stability, I always use a ceramic former with no adjustment.

Cheers Aub
Yes - as an alternative to ceramic, what would you think of polystyrene, again, an HRO standard feature? Also, I have some polystyrene "pill bottles" of 1" diameter and they even have ribs running along the long axis.

Still thinking about your suggestion of running a VFO at half the op frequency. Needs a few more turns on the coil .

B
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