I have replaced the orginial bandswitch in my Swan Mark 1 amplifier with a Radio Switch Model 86S. Understandably this new bandswitch is much larger than the orginial switch so there is little room f
I have one of Bob's (W6YUY) original coils as described in the above article. The core is fiberglass & resin encased. It is currently wound with 20 turns of #12 wire. There are notches in the form fo
Author: carlseye at tampabay.rr.com (carl seyersdahl)
Date: Wed Feb 26 19:07:06 2003
The core may be fibreglass and resin "encased," but what is the core material.???? Iron or ferrite ?? -- Original Message -- From: "Radio WC6W" <wc6w@juno.com> To: <amps@contesting.com> Sent: Wednesd
Hi Carl, Per Bob's article there is a T-400-2A Amidon/Micrometals iron powder core inside... not visible as packaged. It may not have been clear in my earlier posting, but this very part was assemble
Author: MorgusMagnificen at aol.com (MorgusMagnificen@aol.com)
Date: Thu Feb 27 10:58:49 2003
Bill: I am still trying to come up with a feasible design for you, for a toroidal replacement 80M coil. Meanwhile, you probably noticed the posting RE: a coil advertised for sale by WC6W, that was ad
Author: MorgusMagnificen at aol.com (MorgusMagnificen@aol.com)
Date: Thu Feb 27 11:44:51 2003
Don: I will not debate the price issue, because it is highly variable. My figures are for very high-performance cores, which this is not. You are missing an extremely important point.The power losses
Hi Eric, a posting T400-2 That's a T200-2A core.... note the A on the end. This unit has twice the cross-sectional area of a T200-2 core; Therefore, the balance of your analysis is in error. I observ
Toroids do not require a ferrite or iron powder core at all. The necessary characteristics of a toroid are simply that it is in the shape we call a toroid. The self-shielding characteristics of toroi