[Boatanchors] darn foreign schematic symbols

GGLL nagato at arnet.com.ar
Fri Aug 7 21:15:25 EDT 2009


	I cannot find it in the service manual schematic. But found C154 (look 
at IC3c mic preamp and Q17 beside) which is shown as you describe, and 
it's a polarized electrolytic.

Regards
Guillermo - LU8EYW.

Dick KF4NS escribió:
> Wellll, lots of ideas. I am inclined to go with non-polarized
> capacitor.
> 
> More info: this is NOT the older HT I have (my mistake) but actually
> the ICOM IC-T2H of more recent design. There is no value marked for
> it. It is included in the manual as a source design for the external
> electret mic/spkr input. The "cap" (?) is shown in the mic input in
> series with the mic + lead. Hope that helps more.
> 
> Thanks for all the input, guys.
> 
> 73, Dick KF4NS
> St Petersburg, FL 33714 USA
> Keep The Glow!
> 
> ----- Original Message ----- 
> From: "J. Forster" <jfor at quik.com>
> To: "Dick KF4NS" <kf4nsradio at verizon.net>
> Cc: <boatanchors at mailman.qth.net>
> Sent: Friday, August 07, 2009 4:40 PM
> Subject: Re: [Boatanchors] darn foreign schematic symbols
> 
> 
>> Sounds like a non-polar electrolytic to me. Some motor starting caps
>> are
>> like that. They are vasically a pair of polarized caps, series
>> connected,
>> back-to-back.
>>
>> -Jogn
>>
>> ============
>>
>>
>>> Hope someone can help. I have a schematic of a Japanese HT from the
>>> early 80's or maybe late 70's with a symbol I hope I can describe
>>> properly. Searches all over the Inet proved fruitless.
>>>
>>> It is a pair of vertical dark lines with lighter slant bars between
>>> the vertical bars. I of course suspect it is a condenser of some
>>> sort.
>>> I went through all my dozens of tech books but only found something
>>> close just once. It was described as a polarized capacitor but if
>>> so,
>>> no way to determine the polarity. Weird !!
>>>
>>> Any ideas?
>>>
>>> 73, Dick KF4NS
>>> St Petersburg, FL 33714 USA
>>> Keep The Glow!
>>>
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>>
>>
> 
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