[Hallicrafters] [Boatanchors] Request for Most Common Capacitor Values to beReproduced

Mon May 3 19:41:18 EDT 2010

Hiya, Boomer, and Carl.  I don't know if this would give you anything to 
go by or not, but the recap kits that we make up to go along with our 
electrolytic can-capacitors use various combinations of the following 11 
polyesters:

.001
.0022
.0033
.0047
.01
.02 or .022
.033
.047
.1
.22
.47

I should point out that most of our kits are for ham, in case that makes 
a difference.

There are a few low volume ones that we have to keep around, 1.6 kV 
polyprops for the Heathkit scopes, .002 @ 1 kV for certain Halli's and 
their AF outputs, that sort of thing.

But 99% of the "paper replacers" that we put into the kits are covered 
by the 11 caps in the list above.

BTW, for all the values in that list, we use 630V Mallorys.  This is 
mostly for the sake of keeping the number of stocked items down. The 
200V's *would* be a little less expensive, about 55-60% of the cost of 
the 630V's.

Carl, your point about the size is well taken.  Thus far though, I 
haven't seen any applications where the polyester 630V's weren't smaller 
than the old 200V paper/foil units.

Digressing for a second, Hayseed is getting closer to having the new 
line in place so we can go back to full production on our multi-section 
electrolytic cans.  We're waiting for samples of dielectric materials 
(hopefully they shipped today) which we will gleefully push to the point 
of destruction.  One last piece of tooling to go.  Also a slight 
re-design of the twist-tab ring.  Then we'll be in business.

We do have a small number of Halli, Hammarlund, Heathkit, and Drake cans 
on hand, as well as the plug-in R-390 cans that we've managed to eke 
out, if anyone is in need.

Good luck with your project!

73,
Tom NØJMY .   .

Hayseed Hamfest Co. - Multi-section Can Capacitors
for vintage Heathkit, Drake, Halli, Hammy, more...
www.hayseedhamfest.com

Carl wrote:
> I suspect you mean .047 Todd?
> 
> Also what is price/size difference with a .1 @ 200V? Cathode bypasses dont 
> need 400V and reducing size clutter has always been a goal here.
> 
> Probably toss in a .025 @ 400/600V to replace anythig in the .02 to .033 
> area.
> 
> Carl
> KM1H
> 
> 
> ----- Original Message ----- 
> From: "Todd, KA1KAQ" <ka1kaq at gmail.com>
> To: "Discussion of AM Radio in the Amateur Service" 
> <amradio at mailman.qth.net>; "milsurplus" <milsurplus at mailman.qth.net>; 
> "Boatanchors" <boatanchors at mailman.qth.net>; "National Radio Equipment" 
> <national at mailman.qth.net>; "Hallicrafters Reflector" 
> <hallicrafters at mailman.qth.net>
> Sent: Monday, May 03, 2010 6:31 PM
> Subject: [Boatanchors] Request for Most Common Capacitor Values to 
> beReproduced
> 
> 
>> Sorry for the multiple list posting, but time is short and max input is 
>> desired.
>>
>> Got a call from a friend this afternoon who is talking with a
>> capacitor manufacturer about producing some caps for the radio, guitar
>> amp, and audio crowd. We've talked about this in the past but never
>> got to it. Now it looks like it will happen.
>>
>> The question is, what values would be the most handy to have supplied
>> into the future for restoring old gear? Obviously we can't do a lot of
>> oddball values as we're mainly looking for values that will sell well
>> and be attractive from a production prospective. The few that popped
>> to mind for me were:
>>
>> .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial
>> lead instead of the radial leads found on Orange drops since axial
>> leads are better suited to our needs. I'm looking for other values
>> that are likely to be encountered often enough to warrant production.
>> Maybe 6-12 different values to choose from. These would be caps used
>> for bypassing and such, not filtering. I suspect we could get them
>> 'banded' for the foil side as well if folks feel that is important
>> enough.
>>
>> The meeting is set for tomorrow, so timely input is critical. We're
>> *not* looking for a list of manufacturers who already make caps as we
>> believe more is better in this case. Some values are already getting
>> difficult to find.
>>
>> TNX -
>>
>> ~ Todd,  KA1KAQ/4
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