[WRL] PC-81 and PC-91 Couplate Diagrams

[N4BKT William Laakkonen]

Here is also an online scan of the 1953 Centralab catalog - plus Amphenol, 
Thordarson, and others.

http://208.190.133.201/old_iron/

----- Original Message ----- 
From: <john.brewer at us.schneider-electric.com>
To: "N4BKT William Laakkonen" <n4bkt at worldradiolabs.com>
Cc: "WRL List" <wrl at mailman.qth.net>; "Larry Rau" <captainlarry at jps.net>; 
<wrl-bounces at mailman.qth.net>
Sent: Friday, November 05, 2004 8:44 AM
Subject: Re: [WRL] PC-81 and PC-91 Couplate Diagrams


>
> If anyone needs more info on Couplates, I have the full Centralab
> catalog for them
>
> John K5MO
>
>
>
>
>                      "N4BKT William
>                      Laakkonen"               To:      "Larry Rau" 
> <captainlarry at jps.net>, "WRL List" <wrl at mailman.qth.net>
>                      <bill at completely         cc:
>                      clean.com>               Subject: Re: [WRL] PC-81 and 
> PC-91 Couplate Diagrams
>                      Sent by:
>                      wrl-bounces at mail
>                      man.qth.net
>
>
>                      11/05/2004 07:38
>                      AM
>                      Please respond
>                      to N4BKT William
>                      Laakkonen
>
>
>
>
>
>
> I believe the diagrams for the PC-81, PC-91 and more couplates can be 
> found
> here:
>
> http://www.amwindow.org/tech/htm/couplate.htm
>
> Just right click on the images or save the page locally.
>
> 73
> Bill Laakkonen
> N4BKT
>
> Check out the new WRL
> (World Radio Laboratories) Web site at
> http://www.worldradiolabs.com/
> A complete ham community site for
> Boat Anchor & Tube radio fans.
>
> ----- Original Message -----
> From: "Larry Rau" <captainlarry at jps.net>
> To: "WRL List" <wrl at mailman.qth.net>
> Sent: Friday, November 05, 2004 1:06 AM
> Subject: [WRL] PC-81 and PC-91 Couplate Diagrams
>
>
>>I have the internal diagrams and parts values for the PC-81 and PC-91
>> pentode and triode coupling networks.
>>
>> I will try to scan these this week-end.
>>
>> Somebody email me with a heads up... is it permissable to send a Jpeg as
>> an
>> attachment to this group ?
>>
>> If not.. I can do it as a list.
>>
>> Bascially each one contains a screen resistor and bypass, a plate load
>> resistor
>> bypass for hi-cut, a following stage grid resistor similarly bypassed for
>> hi-cut, and a coupling cap in between.
>>
>> The triode version has no screen resistor of course.
>>
>> Values are pretty standard... as found in ARRL charts.
>>
>> The exception being  the 250 pf bypasses to limit hi frequency response
>> somewhat.
>>
>> I havent found a bad one yet...
>>
>> But radios are like cats, You never know where they've been.
>>
>> Larry W6WUH
>> captainlarry at jps.net
>>
>>
>> _______________________________________________
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>>
>
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