[R-390] Last question of the day: The "X marks the spot" hold down thingy

[Les Locklear]

I was a BT2(Boiler Tender) when I got out in September 1964. I had a friend who was a radioman we used to listen to baseball and football games. It was a nice respite from the Main Machinery spaces on the aircraft carrier Independence. Each space had two boilers, main engine, steam generator etc. They were hell holes. 4 years was enough fun for me.

Les


----- Original Message -----
From: Thomas Chirhart <k4ncgva at gmail.com>
To: Les Locklear <leslocklear at hotmail.com>
Cc: Collins R-390 HF Receiver List <r-390 at mailman.qth.net>
Sent: 7/8/2021 8:48:34 PM
Subject: Re: [R-390] Last question of the day: The "X marks the spot" hold down thingy
________________________________________________________________________________

There’s an old saying - you choose your rate - you choose your fate. I knew Radio Central was ALWAYS air conditioned due to the electronics and crypto.. beats being a snipe in a fire room where it was 130f..
We had R-390’s, R-1051’s.. both great receivers but the 390 for CW the 1051 for fleet broadcast..
K4NCG 
73 RM2/USN RMC/USCG


Sent from my iPhone

> On Jul 8, 2021, at 9:32 PM, Doug Hensley <w5jv at hotmail.com> wrote:
> 
> 
> That is an excellent reminder of the conditions on some vessels.  It also attests to the practice
> of keeping tube shields in place because of the possibility of loosening over a period of time.
> The issue of heat was secondary if at all.  It was vibration !
> 
> Doug, W5JV, NFIT, NFMK, NDRS, N0WJF, NNN0BXX . . . sadly now dry docked 🙁 ....
> 
> 
> Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds. 
> 
> 
> 
> From: Thomas Chirhart <k4ncgva at gmail.com>
> Sent: Thursday, July 8, 2021 5:12 PM
> To: Doug Hensley <w5jv at hotmail.com>
> Cc: Collins R-390 HF Receiver List <r-390 at mailman.qth.net>
> Subject: Re: [R-390] Last question of the day: The "X marks the spot" hold down thingy
>  
> Likely built to spec considering the rocking and rolling of ships and the constant vibration from the propeller shafts and generators onboard ship- speaking from experience as a Tin Can Radioman…
> 73 Tom K4NCG RM2/USN back in the R-390 days..
> 
> Sent from my iPhone
> 
> > On Jul 8, 2021, at 5:25 PM, Doug Hensley <w5jv at hotmail.com> wrote:
> > 
> > Over the octal crystal plug-in, some R390A's have a light aluminum X-shaped hold down
> > bracket which hooks to springs on its sides.
> > 
> > Okay, common sense tells me this not only is not necessary but is probably a pain in the
> > patuit to remove & replace.   But, I want to ask anyway:  has anyone tried something like
> > a capacitor hold down cap or ???
> > 
> > Thanks to all for the info & great banter here.  I'll try to behave tomorrow and let you
> > guys get some rest 🙂 ....
> > 
> > Cheers,
> > 
> > Doug W5JV
> > 
> > 
> > 
> > 
> > Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds.
> > 
> > 
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