On 17 Mar 2017 2:44 a.m., "Ken" <chase8043@...> wrote:
I ran into problems with Ebay bought cores. I now stick to Diz's supply at KitsandParts.
73 Ken
On Thu, Mar 16, 2017 at 5:09 PM, VK3HN <prt459@...> wrote:
Ken, the FT37-43 that gave unexpectedly high inductances were from a bag of 20 with 22uH windings bought on ebay years ago. They might not even be FT37-43s although they are the same physical size. The ones that gave expected results are from Mark at Minikits in Adelaide, and are no doubt from a reputable source.
Sarma, I also thought that the actual inductance of each winding in a trifilar transformer in a diode mixer would not be critical and my originals would probably work. But in a project like this I prefer to eliminate as many unknowns as I can. VK3HN.
