[Hallicrafters] Re: SX-62A Questions

[Troglodite at aol.com]

In a message dated 10/27/04 12:26:35 PM Central Daylight Time,  
k6jek at comcast.net writes:

> There are some funny paper caps with braided leads.  I got an  
explanation of those caps from a real expert.  I've forgotten the  
explanation but I do remember the advice.  Unless you're pretty sure  
they are leaky, leave them.   There are only a couple of  these.  I got 
this advice after I replaced mine and my radio works so  there you go. <
 
Those same capacitors are found in other models, such as the  SX-28. They are 
the AC line bypasses. The braided lead was to obtain the  lowest possible RF 
impedance. However, due to today's power line noise and  spikes, no 50 year 
old capacitor should EVER be left between the line and  chassis - especially the 
wax type. Modern ceramic or poly caps have sufficiently  low RF impedance. 
The old line to line and line to chassis caps should be  replaced with modern 
safety agency approved capacitors so that safety is not  compromised. These 
capacitors are usually listed as 125VAC or 250VAC rather than  a DC rating. 
Sometimes they are called "X" or "Y" capacitors. The Panasonic  ECQ-N series is an 
example.
 
If you can't find these, drop me a note letting me know what value you need  
and your address, and I will send you some free. It's the least I can do to  
possibly save a life.
 
Doug Moore