[Milsurplus] BC-348 series CORRECTION

[Ray Fantini]

Looked at the manual and that installation and procedure is not that good by Hallicrafters standards, comes nowhere close to being Mill Spec standards, no ground, soldering to male pins on a chassis connector and running AC primary thru the same switch as low level signals on a switch not rated for that service. Hell, they did not even put a fuse in the primary side of the power feed.
All this only serves to prove my argument that the factory built power supply was marketed towards the Ham and SWL market. No way would any branch of the military procurement system approve a job like that.

Ray F/KA3EKH

From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of Mark K3MSB
Sent: Tuesday, June 27, 2017 1:31 PM
To: WA5CAB at cs.com
Cc: List Milsurplus <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] BC-348 series CORRECTION

Here's the manual for the EP-398

http://s670.photobucket.com/user/mikeinkcmo/library/Radios/BC%20348/Halli%20PS?sort=3&page=1

73 Mark K3MSB

On Jun 27, 2017 12:19 PM, "WA5CAB--- via Milsurplus" <milsurplus at mailman.qth.net<mailto:milsurplus at mailman.qth.net>> wrote:
The Hallicrafters EP-298 was built using surplus parts for the surplus market after the War.  It was built on salvaged DM-24 and DM-28 base plates, also using the salvaged original terminal strip.  The rest of the components were also surplus and sometimes have various military QA stamps on them.  The Navy did have some BC-348's later in the War.  Mostly in US AAF aircraft transferred to the Navy, like the B-24 and B-25.  The Navy acceptance stamp would have been on the DM-28 from one of those transactions.  Hallicrafters didn't waste any time or money removing any such markings.  I have also seen EP-298's with the typical orange Signal Corps (or AAF) QA stamps on the bottom of the mounting plate, sometimes with part of the stamp cut away.

After the War, the Navy, like the Army and from 1948 the Air Force, had plenty of AC operated radio receivers already on hand that were being surplus'd out by the thousands.  And if they hadn't, they had plenty of aircraft receivers already on hand that they would have converted instead of getting into the inter-service hassle of trying to obtain sets from the Army to convert.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 06/27/2017 09:25:10 AM Central Daylight Time, antqradio at sbcglobal.net<mailto:antqradio at sbcglobal.net> writes:

Ray
Can't speculate on why the Navy or any other service would need AC power for the BC-348 but I easily found a photo and schematic of a Hallicrafters made power supply at: http://www.ohio.edu/people/postr/bapix/BC348Q_3.htm


Jim



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