[Heathkit] replacement caps for Heathkit

[Richard Knoppow]

----- Original Message ----- 
From: "Carl" <km1h at jeremy.mv.com>
To: "Richard Knoppow" <1oldlens1 at ix.netcom.com>; "rbethman" 
<rbethman at comcast.net>; <heathkit at mailman.qth.net>
Sent: Thursday, January 05, 2012 5:19 PM
Subject: Re: [Heathkit] replacement caps for Heathkit


> ----- Original Message ----- 
> From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
> To: "rbethman" <rbethman at comcast.net>; 
> <heathkit at mailman.qth.net>
> Sent: Thursday, January 05, 2012 5:24 PM
> Subject: Re: [Heathkit] replacement caps for Heathkit
>
>
>>
>> ----- Original Message ----- 
>> From: "rbethman" <rbethman at comcast.net>
>> To: <heathkit at mailman.qth.net>
>> Sent: Thursday, January 05, 2012 1:59 PM
>> Subject: Re: [Heathkit] replacement caps for Heathkit
>>
>>
>>> Dick,
>>>
>>> Try:<http://www.hayseedhamfest.com/capacitors/Heathkit_1.html>
>>>
>>> Tom, N0JMY has the SB-610 cap kit for $55.75, plus
>>> shipping. (This
>>> includes the twistlock cap also.)
>>>
>>> He and his family do the kits.  And they are one of our
>>> OWN,
>>>
>>> Bob - N0DGN
>>
>>     I can vouch for Tom's stuff having used it in Drake 
>> and
>> Hallicrafters stuff.
>>
>>     BTW, Sangamo made capacitors under the Black Beauty
>> name for many years after the disasterous ones were made.
>> The trouble causers were oil-filled. One of the problems
>> (but probably not the exclusive one) was that the tube at
>> one end through which the oil was added was also one of 
>> the
>> leads. If the lead was overheated the seal was broken and
>> the oil would leak out. Later BB caps were dry. The two 
>> can
>> be told apart by the look of the leads. The oil filled 
>> ones
>> have one thick stub at one end, the dry ones have thin 
>> leads
>> on both ends. The late BB and Orange Drop caps, which 
>> have a
>> very good reputation, were both described in the same 
>> way: a
>> combination of paper and polyester dielectric. I think 
>> the
>> only difference between the late ones was that BB's were
>> axial lead and OD's were radial lead.
>>     Nonetheless, all of these are old enough to be 
>> suspect
>> even if not the mid-1950's trouble makers.
>
> Black Beauty was a Sprague trademark. At the same time the 
> paper versions were made they produced a high quality film 
> version that was used by HP and others, all Ive tested are 
> still fine. They have red lettering.
> Production years of both can be found in the yearly Radio 
> Masters.
> The Bumblebee style were also Sprague and a lower cost 
> version of the BB for catalogs and cheaper OEM's
>
> Carl
> KM1H
>
>
     Carl, my error, Sprague is correct. The funny thing is 
that I was just looking at a Sprague ad in an old ARRL 
handbook before I wrote that.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com