[Hammarlund] Capacitor replacement

[Roy Morgan]

Speaking of filter chokes:

There was a “Fix” published long ago, possibly in Hollow State News, to correct leakage from the filter choke winding to the choke case: you insulate the case from chassis and merrily carry on.

DO NOT DO THIS. It puts full B+ voltage on the case of the choke and invited a later owner (or yourself if you forget what you did) to contact the B+ in a very unsuspected place.

Just beware.  If you have a leaky filter choke, find some other way to solve the problem, such as a replacement choke with proper insulation.

Note, it might be possible to un-pot the original choke and properly insulate it by rebuilding, or better yet getting the thing rewound with modern materials.

Roy

> On Mar 1, 2022, at 3:38 PM, Joe Connor via Hammarlund <hammarlund at mailman.qth.net> wrote:
> 
> Just a few more things:
> 1. Al Parker's write-ups on http://www.boatachors.org  are well worth reading. They're informative and entertaining.
> 2. WARNING: the SP-600 Anthology points to one easy-to-access cap that should be replaced immediately. If it shorts, it can take out the filter chokes.
>                         Joe Connor
Roy Morgan
K1LKY since 1958
k1lky68 at gmail.com
Western Mass