[GreenKeys] period HF receivers

[Pete Lancashire]

You are correct got my industrial designers mixed up

-pete

On Tue, May 9, 2017 at 1:40 PM, Richard Knoppow <1oldlens1 at ix.netcom.com>
wrote:

>       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>
> 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/222493257886>
>>> They also have the kit for the R-390/390A
>>> <http://www.ebay.com/itm/222493260192>
>>>
>>>
>>>
>>>
>>>
>>>
>> --
>> Richard Knoppow
>> 1oldlens1 at ix.netcom.com
>> WB6KBL
>>
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