[Elecraft] power supply concerns

Thu Feb 21 23:49:04 2002

Tom and George,

Thanks guys!  Found the adjustment, works like a champ!   :-D

73
WA5PB
Bill Allen

----- Original Message -----
From: "Tom Hammond N�SS" <[email protected]>
To: "WA5PB" <[email protected]>
Sent: Thursday, February 21, 2002 22:39 PM
Subject: Re: [Elecraft] power supply concerns

Bill:

There's a PC-mount pot in Astron power supplies hwich will allow you to
adjust the output voltage. Should be labeled R5 (1k) and the wiper of this
pot connects to pin 4 of the uA734 precision voltage regulator.

Tom Hammond   N0SS

At 09:26 PM 2/21/02, you wrote:
>Hey Gang,
>
>I have the internal battery option for the K2 headed my way, but I have
some
>concerns about my power supplies.
>
>Both my Astron RS-20A and Pyramid supplies give me no more than 13.7vdc at
>the plug or 13.5 at the dc input of the K2.  When I hit display, it gives
me
>a 13.1-13.2 reading.   What can I do short of getting new power supplies so
>as to not reduce the life of the internal battery?
>
>Any help or advice would be appreciate.
>
>73
>WA5PB
>Bill Allen
>K2#1068
>
>
>
>
>
>
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