[Milsurplus] BC-659 vs BC-1335

Fri May 7 22:55:13 EDT 2004

I used to play with these radios back in the late '60s, and actually found
new BA-41s.  Current drain from the bias battery was very low, and its life
in the set was not much different from the typical shelf life of a
zinc-carbon battery--about 8-10 months.
----- Original Message ----- 
From: <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Thursday, May 06, 2004 4:48 PM
Subject: Re: [Milsurplus] BC-659 vs BC-1335

In a message dated 5/6/04 12:02:26 PM, [email protected] writes (in
part):

> Alan according to W4MEW, the BC620 (20-27 armor / wb FM) & BC659 (27-38
> attly) carried a a small 22.5V(?) battery to run the AFC-lock on
> transmit. Well it's presence wasn't well known & when run-down, wud cause
> them to jump freq. w/o warning.
>
>
Yes, old BA-41.   Actually provided 4.5 v, 25.5 v and 60 v. Mounted on the
transmitter/receiver chassis in it's own   little box.   Often wondered what
the
operating life was.   For a work-around see ER #135, July/August 2000.

> The 620/659 used either a dry battery pack or a clamp-on vibrapack
(PE120?)
> but still relied for bias on the battery inside the xcvr. All loctal
> tubes
>
>

Dennis D. W7QHO
Glendale, CA

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