[Milsurplus] BC-611 F Data Needed

[Mike Feher]

Mark –

 

Make sure the coupling caps have essentially no leakage. As you can see all the resistors are pretty high values to minimize current draw and increase battery life. Even a few megs of leakage can raise a grid positive, essentially cutting the tube driven off, or causing a lot of distortion/ Stay healthy – 73 – Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

 

From: milsurplus-bounces at mailman.qth.net <milsurplus-bounces at mailman.qth.net> On Behalf Of Mark K3MSB
Sent: Tuesday, April 21, 2020 12:47 PM
To: Robert Downs <wa5cab at cs.com>
Cc: List Milsurplus <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] BC-611 F Data Needed

 

Hello (again) Robert.

 

Thanks for the info.    Yes, C27 is there on the opposite side of the board.

 

I will be performing resistance checks on the tubes and the IF (hopefully tonight).  

 

I have to admit,  I was (more than) a bit daunted when I looked at the board.  Lotsa really small stuff in there.....  we'll see how it goes.

 

Mark K3MSB

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