[Boatanchors] Crystal Needed

[David Knepper]

While we are the subject of keys, I have a telegraph sounder that has a 
damaged (cracked) black cover on one of the two coils.

The dimensions of the sleeve is 2-1/8 inches long and 1-1/4 inches inside 
diameter.

The model number is 2588 LARGE BUNNELL TELEGRAPH RELAY

You can view this sounder on
http://w1tp.com/im3000b.htm

I have been wondering if suitable thin wall "plastic" material may be 
available.

Yes, I did try Ebay but all I could find is complete units.

Does anyone know of someone who repairs these units and may have parts?


Thanks

David Knepper - W3CRA/W3ST
Collins Radio Association
www.collinsra.com
Join the CRA today
-----Original Message----- 
From: Bill Cromwell
Sent: Thursday, January 30, 2014 11:44 PM
Cc: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] Crystal Needed

On 01/30/2014 11:14 PM, Richard Knoppow wrote:
>
>     FWIW, I use a J-38 I bought surplus maybe fifty years ago. When I got 
> it I thought it felt "spongy" only term I can come up with.  I lost the 
> spring and replaced it with one I made from a ball point pen spring. That 
> was much livelier and I still use it. I have since added a number of J-38 
> and J-47 keys to my small collection. All have a similar feel. I don't 
> know if its the spring shape or material. I also have Western Electric and 
> other keys and generally all feel a little crisper than the J-38 with 
> original spring. I now make springs out of spring stock from the hardware 
> store if I need one.
>    Now, I am a little puzzled by what is meant by a hard spring. If the 
> tension is too great and beyond the adjustment range of the spring screw I 
> suggest making a new one from lighter spring material rather than trying 
> to cut down the old one. If the spring wire is too thick reducing its 
> length may result in its being too short to have any range of adjustment 
> or might result in a strange keying feel.
>    Good Western Electric keys are available on ebay for reasonable prices. 
> Bunnell keys are also excellent but usually go for higher prices. If you 
> can find a decently priced one go for it. Jessie Bunnel invented the type 
> of key we all recognize. Originally as the Bunnell Steel Lever key and a 
> little later with minor changes as the Triumph key. Again its easy to make 
> springs if the original is missing.
>
>
> -- 
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
>
Hi Richard,

I suppose by "hard" I meant about the same thing you meant by "crisp" -
maybe. I have pumped a lot of water with hand pumps and most of them
were NOT as "hard" to pump as the original spring. I shortened and then
stretched it to fit again. That sufficiently 'weakened' it to feel
pretty good. I used it enough that I replaced the bearings <grin>. Those
are also easy to replace.

I don't have a collection of keys. I have *one* that works the way I
want it to and so I have no motivation to acquire another one. If I find
myself needing another key I would probably be more inclined to make it
myself. But that is only because I can.

73,

Bill  KU8H
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