[sdiy] Weird tubular, grey (sometimes blue) resistors

[anthony]

 No I meant "hole in the center" as in it's a tube with the wires connected 
at right angles so they look like the Greek letter "pi". Usually they are 
white with color codes daubed in lines across the top. I think they are just 
ceramic caps.

The resistors I have like this; some of them are pretty big and then still 
only rated at 1/4 watta, others of the same size are 1 watt. Some are tiny, 
without a marked power rating or even tolerance: just the resistance spelled 
out with a big "omega" at the end and everything. (Speaking of Ohm, once I 
was pondering the unit for transconductance or is it permittance? anyway I 
thought, "How fortuitous that a scientist came along whose name is Ohm 
spelled BACKWARDS!" And then it dawned on me... duh!

aa
----- Original Message ----- 
From: "Ian Fritz" <ijfritz at comcast.net>
To: <harrybissell at wowway.com>; "anthony" <aankrom at bluemarble.net>; 
<synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, November 13, 2007 12:32 PM
Subject: Re: [sdiy] Weird tubular, grey (sometimes blue) resistors


> Oh, look!  Vishay still makes them:
> http://www.vishay.com/docs/22021/rdlllt02.pdf
>
> IIRC the main application is high power RF.  Good ventilation.
>
>
>
> At 09:36 AM 11/13/2007, Ian Fritz wrote:
>>Sure, I can take a photo. I have a dozen or so in a box out in the garage. 
>>(Oh, you youngsters)
>>
>>At 09:04 AM 11/13/2007, harrybissell at wowway.com wrote:
>>>Well yeah... but its really really uncommon
>>>to have one with a hole in the center. I've never
>>>seen one in the flesh. Sometimes it could be a mounting feature
>>>but usually they are not made this way.
>>>
>>>The antique photos mentioned in another thread do not
>>>show this type.
>>>
>>>Anyone have a photo ???   :^P
>>>
>>>H^) harry
>>>
>>>
>>>
>>>On Tue, 13 Nov 2007 08:42:54 -0700, Ian Fritz wrote
>>> > At 07:34 AM 11/13/2007, harrybissell at wowway.com wrote:
>>> >
>>> > >But ~caps~ like these ??? with a hole in the center ???
>>> >
>>> > Sure. Caps can have a hole in the center.
>>>
>>>
>>>Harry Bissell & Nora Abdullah 4eva
>>
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>
>
>