[ARC5] Product detectors - the name.

[K5MYJ]

The Collins 75A-4 was 1955. The National NC-109 was 1957.

The Hallicrafters SX-100 was 1955. It had the common diode detector.I don't 
know if the SX-100 ever had a product detector.

What were the other high end receivers between 1955 and 1960?

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: "K5MYJ" <macklinbob at gmail.com>
Cc: <Arc5 at mailman.qth.net>
Sent: Thursday, May 11, 2017 3:03 PM
Subject: Re: [ARC5] Product detectors - the name.


On 11 May 2017 at 14:27, K5MYJ wrote:

> I just checked the manuals for the Collins 75A-3 and 75A-4.
>
> The 75A-3 was sold as an AM/CW/FM receiver. The 75A-4 was sold as an 
> AM/SSB/CW receiver.
>
> The 75A-3 did not have what we now call a product detector.
>
> The 75A-4 had both diode(AM) and product(SSB/CW) detectors.
>
> To me the 75A-4 is the first receiver I know of to be designed for SSB.

Did that pre-date the National NC-109?

Ken W7EKB

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus