Alan and All,
I had nearly the same setup back in 1961-2 while stationed in Berlin,
Germany. Built the Apache, which worked great, then added the SB-10 shortly
thereafter. That was my first SSB venture, and you are right--the reports
were good. Problem was though, the Apache was not the most stable
transmitter ever designed! I had an annoying drift problem, which really
gets accentuated on SSB. But Heathkit readily attributed it to a design
flaw on their part, and sent me different capacitors to use (temp.
compensating). Got the Apache settled down sufficiently (but not 100%), and
life was good! Kind of a brick though, compared to my 8 pound K3!
Dave W7AQK
----- Original Message -----
From: "Alan Bloom" <[EMAIL PROTECTED]>
To: "Bob Nielsen" <[EMAIL PROTECTED]>
Cc: "elecraft List" <[email protected]>
Sent: Thursday, May 29, 2008 6:04 PM
Subject: Re: [Elecraft] K3 Band changing...
Many (many, many) years ago my station consisted of a Heathkit Apache
TX1 transmitter, Mohawk RX-1 receiver, and SB-10 SSB adapter. I figured
that I had to switch or adjust a minimum of ---12--- controls to change
bands. If I needed to change between LSB and USB, add two more for a
total of 14. And that does not include switching antennas and changing
the dial frequency if required (on both transmitter and receiver).
That also does not include my 6 and 2 meter transverters.
In those days I thought twice before deciding to change bands. :=)
On the other hand, the SB-10 phasing-type SSB exciter had absolutely
WONDERFUL-sounding audio. I got unsolicited compliments on nearly every
QSO.
Al N1AL
P.S. The list as I recall it:
TX-1: Bandswitch
Tune/operate switch
Driver tuning
Driver gain
Plate tuning
Plate loading
RX-1: Bandswitch
Antenna trimmer
SB-10: Bandswitch
Carrier null #1
Carrier null #2
Tuning
On Thu, 2008-05-29 at 13:33, Bob Nielsen wrote:
You forgot to add changing the coils in the HRO receiver :^)
Bob, N7XY
On May 29, 2008, at 1:23 PM, Mark Bayern wrote:
> Sure sounds easier than turning off the plate supply, opening the top
> of the cabinet, changing the coil(s), closing it up, turning the HV on
> again, then tuning the rig for the new band.
>
> Mark AD5SS
>
>
>
> On Thu, May 29, 2008 at 3:04 PM, David Ferrington, M0XDF
> <[EMAIL PROTECTED]> wrote:
>> 5 presses?
>> --
>> A good cook is like a sorceress who dispenses happiness.
>> -Elsa Schiaparelli, fashion designer (1890-1973)
>>
>> On 29 May 2008, at 20:28, Dave G. wrote:
>>
>>> What's wrong with
>>> "FREQ ENT" -> '1' -> '4' -> '.' -> 'ENTER'
>>> ?
>>> --
>>> Dave G. KK7SS
>>> '65 MK III Sprite in Richland, WA
>>> "Real stupidity beats artificial intelligence every time."
>>> Terry Pratchett, 'Hogfather'
>>>
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>>
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> _______________________________________________
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Bob Nielsen
[EMAIL PROTECTED]
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