[GreenKeys] period HF receivers

Tue May 9 17:24:30 EDT 2017

Most of the Dreyfuss and Loewy designs were 1930s and "art deco".

While I don't know much about their radio and electronic names, I am  very
familiar with both industrial designers names from the railroad world. They 
 were
the ones who designed many of the early streamlined passenger trains  during
the 30s and 40s. Not only the trains themselves, but also the styling, art  
work,
painting and letterng. They may have also influenced automobile designs  as
well for GM.

Dave
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In a message dated 5/9/2017 4:41:05 P.M. Eastern Daylight Time,  
1oldlens1 at ix.netcom.com writes:

       I think  the SX-42 and other Hallicrafters radios of the time were  
Raymond Loewy designs.  Henry Dreyfuss designed many items for Western  
Electric including the familiar type 300 and 500 telephones. I think (but am  
not sure) he designed the cabinets for WE broadcast transmitters.  I  thought 
for a long time that either Dreyfuss or Loewy designed the famous WE  639 
microphone but it turns out to have been Robert Marshall of WE, I found  the 
design patent.  I have always found industrial design  fascinating.  

-----Original  Message----- 
From: Pete Lancashire 
Sent:  May 9, 2017 12:21 PM 
To: Richard Knoppow <1oldlens1 at ix.netcom.com>  
Cc: greenkeys 
Subject: Re: [GreenKeys]  period HF receivers 

Have not done it yet but I'm going to put one of the Teletypes  in the 
living room. A TU and a HF receiver, something like the Hallicrafters SX-42  
with its industrial design by Henry Dreyfus since it is the living room.  

Since there is pretty much zip on HF now days, build a little mW  
transmitter and FSK it from something off the internet.

-pete

On Tue, May 9, 2017 at 11:18 AM, Richard Knoppow  
<_1oldlens1 at ix.netcom.com_ (mailto:1oldlens1 at ix.netcom.com) > wrote:

I have a kit for my R-388 but have never had time to install it.  They have 
an excellent reputation.  My receiver has the PD and AVC  mods that were 
earlier. The PD works OK but  the AVC is  awful.
I want to ask the fellow who designed the Treetop  circuit about some sort 
of noise limiter that would be suitable for use  with it.

On 5/8/2017 12:28 PM, Jeffrey D  Angus wrote:

On  5/8/2017 2:14 PM, Richard Knoppow wrote:

Also  do not forget the Collins 51J series, these are very  fine
receivers. The 51J-4 has mechanical filters in it so is  considerably
more expensive than the earlier versions but the  earlier ones can
be used with an external SSB or RTTY adaptor which  will supply
the selectivity.

I have a 51J-3. What  makes the difference is have the product
detector kit installed from  Tree Top Circuits.
<_http://www.ebay.com/itm/22249http://_ 
(http://www.ebay.com/itm/222493257886) >
They  also have the kit for the R-390/390A
<_http://www.ebay.com/itm/22249http://_ 
(http://www.ebay.com/itm/222493260192) >

--  
Richard Knoppow
_1oldlens1 at ix.netcom.com_ (mailto:1oldlens1 at ix.netcom.com) 
WB6KBL  

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