[Boatanchors] [3890_AM] RAK / RAL Receivers: Couple of tips.

[Bry Carling]

Keep AB5S on this list I say!!

Just rap his knuckles gently please and press on. Life is too short for noise about politics on ham radio.

I can testify that AB5S, WZ5Q and W5SUM are all great guys and none of them needs to be excluded for a minor gaff!

Keepin’ it real in Central GL - Bry Carling, AF4K

On Jun 17, 2019, at 10:12 AM, Ronnie Hull <w5sum at comcast.net<mailto:w5sum at comcast.net>> wrote:

I agree there is no place in this list for someone’s personal political horse poop.
I think posting this kind of rubbish should be an automatic expulsion from the list

I also think an apology is due the list

W5SUM Ronnie

Sent from my iPhone

On Jun 17, 2019, at 8:07 AM, Mike - WZ5Q wz5q at wz5q.net<mailto:wz5q at wz5q.net> [3890_AM] <3890_AM at yahoogroups.com<mailto:3890_AM at yahoogroups.com>> wrote:

If one wishes to
listen to Rash Windbaugh on the BCB, perhaps
one could bypass the audio filters.

Now why did you have to go and ruin an otherwise fabulous technical article and review with your bias?
Disappointing.

73
Mike
WZ5Q
On 6/17/2019 7:18 AM, 'David Stinson' arc5 at ix.netcom.com<mailto:arc5 at ix.netcom.com> [3890_AM] wrote:

Been cleaning and reviving a WWII Navy RAK
receiver
which is going to Jim Sargent's next auction in
July.
The beautiful old beast has been patiently waiting
its
turn for about 25 years (I have another I mean to
keep).
De-Ox-it and lubricate,
work over the grounds, then powered and it came
right
up with no issues. 180V B+ plays with about 25mA
current.
Amazing machine; like opening a tomb that's been
sealed
for millennia, then the occupants sits-up and
says: "Good Morning!"

Those of us who know the RAK/RAL are familiar with

them know this, but for those who have yet to
light one up:
The "headphone" jack on the front of the radio
is NOT for the regular, single-circuit headphone
or for a matched, ground-returned speaker.
The audio output of these receivers is balanced
with a center-tap on the Audio Output transformer
secondary grounded. If you plug-in a
single-circuit
headphone with one side to the tip and one
side to the ground, you're shorting-out half of
the audio output secondary.
Why RCA snuck this "land mine" in to hoist
the unwary is a mystery.
So use a three-circuit plug if using the
front-panel jack.

An AM signal, like on the BCB, will sound
bassy and "distorted." Like a certain famous
person is reported to have said:
"This isn't a "bug," it's a "feature."
The RAK/RAL are optimized as CW receivers and
they excel at this, if one does not rail
the Sensitivity control. If one wishes to
listen to Rash Windbaugh on the BCB, perhaps
one could bypass the audio filters.

Anyone else want to add some good info
on resurrecting the RAK/RAL?

GL OM ES 73 DE Dave AB5S



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Posted by: Mike - WZ5Q <wz5q at wz5q.net<mailto:wz5q at wz5q.net>>
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