LF: Toroid cores

[G0MRF@aol.com]

Hello group

The old, but reliable, 3C85 series of toroids are now becoming difficult to find.
As I'm still getting the odd enquiry or two, I've decided to re-stock some of the popular sizes but in the new 3C90 material.

I have ordered, for delivery in 3 weeks:

58mm  (1kW)   42mm (400W)  and 25mm (?W) toroids.

Prices seem similar to the 3C85 series but I will update my web-site shortly.

Ref: The G3YXM pre-amp design. -   I have not been able to located a suitable variable inductor to replace the obsolete Toko unit in Dave's design.

If anyone has had any luck with a replacement, I would be interested in the details.

Thanks


David  G0MRF