[CW] Break In Operation on CW

[David Ring]

I gave you the link for the light bulbs -
http://www.1000bulbs.com/6MB-to-19-Indicator-Lamps/1857/

Keep it or remember where they are in case you meet someone else with
a DEO 1500.  It took me quite a while to find them as Chicago
MIniature has discontinued making them.

I uploaded the manual to BAMA.  The fellow who made them now lives in
the "UP" Upper Pennensula of Michagan.  He is a retired dentist.  He
did an excellent job of making this unit - 20 years later - all I've
replaced is some bulbs because of strong r.f. in the shack on some
bands.

Nice QSK.  Really helps DXing!

73

DR

On Tue, Jun 10, 2008 at 8:13 AM, Frank N. Haas <kb4t at kb4t.us> wrote:
> QSL David.
>
> I liked my first DEO QSK 1500 so much I wanted to be sure that I would be
> able to use it for many years. I invested in a spare set of PIN Diodes and
> some of the other ICs used in the unit. I bought 100 of the #12 lamps. (They
> were cheap back then.) I had nearly every spare part I would likely ever
> need. DEO was kind enough to supply plenty of tech data with each unit sold.
> The design is simple, efficient and easy to service.
>
> Over the years I've never had to replace the PIN Diodes. I live in one of
> the Lightning Capitals of the US so I've had to replace a number of the #12
> lamps and a few of the ICs. I've had to repair the power supply once. At
> some point I changed amps and modified the amp keying line circuit but have
> since put it back to the original design. I have not had any major problems.
>
>
> The #12 lamps are still available though they can be hard to find. All of
> the other solid state devices are still available. Now that I have 2 of the
> DEO units I figure I'll always have at least one working unit.
>
> After reading the manual for the Ameritron unit with its various cautions
> and reading about the basic operating design of the new Array Solutions
> unit, I wish someone would start making the QSK 1500 again. Discussions on
> other lists seem to indicate that most folks don't like or don't understand
> full break-in. Thus it's likely there's little profit in making boxes that
> allow one to run full break-in with an older amp.
>
> For those that do discover the joys of running full break-in and want to do
> it with an older amp, having resources like BAMA with documentation about
> products that work well will help those resourceful enough to roll their own
> perhaps.
>
> 73,
>
> Frank KB4T
> Florida
>
>
> -----Original Message-----
> From: cw-bounces at mailman.qth.net [mailto:cw-bounces at mailman.qth.net] On
> Behalf Of David Ring
> Sent: Tuesday, June 10, 2008 12:37 AM
> To: CW Reflector
> Subject: Re: [CW] Break In Operation on CW
>
> Hello Frank,
>
> I found a replacement for the Chicago Miniature fuse bulb - it is
> available from www.1000bulbs.com/Miniature-Indicator-Bulbs/ for a very
> reasonable cost.
>
> The item is 12 - Miniature Indicator Lamp - 12 Volt - G3-1/2
> Sub-Miniature 2-Pin (G4) - EIKO 12
>
> I also scanned the manual and designers notes and put them on the BAMA
> archive.
>
> 73
>
> DR
>
>
>
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