[Hallicrafters] SLightly off topic

[Jon Miccolis]

-----Original Message-----
From: Allan Culbert <k0al at mchsi.com>
Sent: Oct 21, 2004 10:43 PM
To: Jon Miccolis <kb9wvk at earthlink.net>
Subject: Re: [Hallicrafters] SLightly off topic

Jon,
Thanks for all the advice and suggestions on the capacitance question.  I chose to wait, get the correct values, and make a permanent replacement.  After changing the 1uf 100v cap (in the agc circuit) and the power supply filter caps the bc348Q is back to life - sort of.  Still needs a thorough going over but it is at least showing positive signs of life again.  Thanks again to all who reponded to my question.  Have a great weekend and . . .

Best 73!
Jon Miccolis, kb9wvk



At that value, I am presuming the original was perhaps in a cathode circuit
of an audio section, or perhaps the AVC circuit. With a 50 times increase in
value you certainly are going to drastically change the time constant of the
original circuit.

Now if it only involved a higher voltage rating, no problem, but that great
of a change in capacitance is certainly going to upset something.

Al, K0AL

----- Original Message ----- 
From: "Jon Miccolis" <kb9wvk at earthlink.net>
To: <Hallicrafters at mailman.qth.net>
Sent: Thursday, October 21, 2004 10:20 PM
Subject: [Hallicrafters] SLightly off topic


> Does anybody know of any reason (other than overkill) that it wouldn't be
acceptable to use a 50uf 500v electrolytic cap where a 1uf 100v was called
for?  The reason I ask is that I am doing some troubleshooting on a bc-348-Q
and only have the higher valued cap in my junkbox.  I intend to order the
correct capacitors but for now . . . ?
>
> 73!
> Jon Miccolis, kb9wvk
>
>
>
>
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