[Boatanchors] Boatanchors Digest, Vol 181, Issue 17

Tue Feb 26 09:43:17 EST 2019

It is called DeOXIT.  It lubricates as well as cleans.

> Date: Tue, 26 Feb 2019 08:50:01 -0500
> From: jeff <jeffv at op.net>
> To: boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] Corrosion on tube pins and sockets
> Message-ID: <c365977a-6197-c28f-fd86-8bfa1b8a8027 at op.net>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
>> On 2/25/19 2:48 PM, w3khg-john wrote:
>> Interested in hearing how vintage users clean the tube pins and sockets 
>> on their gear against corrosion. Any lubricating solution after cleaning?
> 
> if it's bad, a small metal brush, then some of that great CAIG spray. 
> The specific name escapes me. It's more expensive.
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Tue, 26 Feb 2019 08:14:55 -0600
> From: "David Stinson" <arc5 at ix.netcom.com>
> To: <mrca at mailman.qth.net>, <boatanchors at mailman.qth.net>,
>    <milsurplus at mailman.qth.net>
> Subject: [Boatanchors] FMing Prog. Oscillators (was GE Portamobil)
> Message-ID: <[email protected]>
> Content-Type: text/plain;    charset="UTF-8"
> 
> (Copied to other lists for general interest:)
> 
> I've been working on a concept.
> 
> Can't FM a programmable oscillator, but:
> Say you have a rig that requires Fo/18 crystal.
> So 146.52 would be 8140 KC.
> And you have another crystal laying around, doesn't
> matter the freq since we can order any freq prog. osc,
> as long as the crystal's a fundamental.
> Assume a common Color Burst crystal of 3.5795 Mc.
> 
> We order a 4560.5 KC oscillator.
> With two transistors and a couple of diodes, 
> we can sample mic audio through an adjustable
> audio amplifier, then apply it to an oscillator
> with the 3579.5 crystal, say in the Emitter lead.  
> This crystal oscillator WILL FM at the audio rate.  
> Output this and the prog. oscillator to a couple 
> of diodes as a non-linear mixer. 
> One of the products will 
> be 8140 KC, FMing at the audio rate.
> Don't need much of the mic audio since we'd
> only need to swing the Color crystal about 300 
> cycles, since it will be multiplied by 18.
> 
> GL OM ES 73 DE Dave AB5S
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 5
> Date: Tue, 26 Feb 2019 14:22:15 +0000
> From: "McDonald, J Douglas" <jdmcdona at illinois.edu>
> To: "boatanchors at mailman.qth.net" <boatanchors at mailman.qth.net>
> Subject: Re: [Boatanchors] Corrosion on tube pins and sockets
> Message-ID:
>    <DM6PR11MB3097BC054509E9A7024536F7BF7B0 at DM6PR11MB3097.namprd11.prod.outlook.com>
>    
> Content-Type: text/plain; charset="us-ascii"
> 
> I first use that green crinkly plastic pad that you use on dishes. If that is not enough
> I try the metal brush. As a last resort  #400 sandpaper. 
> 
> I then use DeOXit D5 applied as a liquid. I find it hard to buy the liquid, so I just spray
> it into a cup. Q-tips are good but you have to be careful to remove the hairy residue. 
> 
> I very strongly recommend the green pads, used with DeOxit, on rotary switch
> rotors. I tear off little bits of it and hold in tweezers.  
> https://www.ebay.com/itm/6-1-2-AA-Tweezers-Stainless-Steel-Anti-Magnetic-Anti-Acid-Fine-Tip-Soldering/222865728068?hash=item33e3d52244:g:uiIAAOSwW4dbwCbM:rk:1:pf:1&frcectupt=true
> 
> To clean the stators, I shove rough heavy card stock between
> the little clips, wet with DeOxit, and slide back and forth. 
> 
> Doug McDonald
> 
> -----Original Message-----
> 
>> On 2/25/19 2:48 PM, w3khg-john wrote:
>> Interested in hearing how vintage users clean the tube pins and sockets 
>> on their gear against corrosion. Any lubricating solution after cleaning?
> 
> if it's bad, a small metal brush, then some of that great CAIG spray. 
> The specific name escapes me. It's more expensive.
> 
> 
> 
> ------------------------------
> 
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> End of Boatanchors Digest, Vol 181, Issue 17
> ********************************************