[Milsurplus] Fw: Mackay 123B

[Michael Bittner]

----- Original Message ----- 
From: "Michael Bittner" <mmab at cox.net>
To: "Michael Bittner" <mmab at cox.net>
Sent: Sunday, September 17, 2017 6:53 PM
Subject: Re: [Milsurplus] Mackay 123B



 ----- Original Message ----- 
 From: "Michael Bittner" <mmab at cox.net>
 To: "Hubert Miller" <Kargo_cult at msn.com>; <Milsurplus at mailman.qth.net>
 Sent: Sunday, September 17, 2017 6:41 PM
 Subject: Re: [Milsurplus] Mackay 123B

 FWIW, here are a couple of photos of my favorite "manually diddled" LF
 emergency crystal radio in my collection, an RCA Type B.  I still works
 remarkably well.

https://photos.app.goo.gl/naOn7eDGixQQ1B2L2

I don't know why my first email had the same picture twice.  Here is the top 
view that I was trying to send:

https://photos.app.goo.gl/ByQX4htVlEN14FZw1

Mike, W6MAB

 ----- Original Message ----- 
 From: "Hubert Miller" <Kargo_cult at msn.com>
To: <Milsurplus at mailman.qth.net>
Sent: Sunday, September 17, 2017 1:29 PM
Subject: Re: [Milsurplus] Mackay 123B

I have not seen one of the 'emergency crystal receivers' among 3
 varieties, with a fixed crystal.
I think the early fixed crystals were somewhat fragile and susceptible to
 moisture ingression?
But I don't have any evidence marshalled. I'm just recalling some
 instructions that came with
jim-crack early toy crystal radio with fixed crystal.
 -Hue

well they all had the manually diddled adjustable crystal detector? or
were the later ones replaced with a simple diode?
Ed#


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