{Collins} Re: Collins 75A4 Seven Deadly Caps



Nope, looks like an error in Chuck's list!

C34 is the problem cap, 100 pF coupling cap from V2 to Grid 3 of V3 
(6BA7), Pin 7.

Pin 3 is the Cathode of V3.

Whoulda' thunk after all these years.!?!?

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B & C-Line Service Supplement CDs
<www.k4oah.com>



Bill Carns wrote:
> Have you looked at the pin diagram in the tube manual? I do not have mind
> out of storage yet, but are these pins common inside the tube? If so, this
> is a common practice.
> Bill
> ----- Original Message ----- 
> From: "Bob W5EUQ" <w5euq@xxxxxxxxxxx>
> To: <collins@xxxxxxxxxxxxx>
> Sent: Saturday, June 23, 2007 1:38 PM
> Subject: {Collins} Collins 75A4 Seven Deadly Caps
>
>
>   
>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> > Content-Transfer-Encoding: 7bit
> > anyone notice that the C34 in the recommended changes is NOT on pin 3
> > but on pin 7 of V3?   Bob
> >
.
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