[Central-Electronics] CE-20A

Fri Oct 24 14:15:21 EDT 2014

Wow, thanks for all the info guys. I am going to have to do some homework. 

I have picked up a few BAs over the last 5-10 years and have been looking forward to retirement and having fun working on them. Most of the stuff has been collecting dust  in the basement. With winter coming up fast I hope to spend some quality time in the basement. hi

73,
Jack WA9NQW 
On Oct 24, 2014, at 11:47 AM, Michael Marx <sndtubes at vacuumtubes.com> wrote:

> Hi Jack,
> 
> I’m interrested in building more DDS VFO’s.  I looked at the N3ZI VFO and I noted one problem with it.  It only goes to 34 MHz where the 20A needs 37 MHz for 10 meters.  Have you found a work around for that?  There are some others that go over 40 MHz.  The RIT function is what you use to keep the VFO out of your receiver.  You have the RIT set to something like 1 MHz.  Then the VFO is 1 MHz high until you close the transmit switch in which time it jumps down to your transmit frequency.  It works great on the VFO I have.  Wonderful QSK on CW.
> 
> I’ve done some more testing with my 20A.  Injecting the proper frequencies into the VFO jack works but output is very low.  I think i need to replace many of the tubes.  They all look tired.  Along with it, I will be replacing the paper and electrolytics.  Then an alignment and maybe it will play well.  
> 
> Does any one know of any easy way to have PTT with the 20A instead of the stupid VOX.  I’ve never liked VOX.
> 
> On another note, I may try using the DDS VFO I have with the 200V.  I think it will work?  CE made it easy with the VFO in and out jacks on the back.  That should work well until I can rebuild the old one.  Now if I just had 160 in it…..
> 
> 
> 73
> Mike WB0SND
> 
> 
> Michael Marx
> sndtubes at vacuumtubes.com
> 636-939-9190
> 
> 
> 
> 
> On Oct 24, 2014, at 8:47 AM, Ed - K9EW <k9ew57 at gmail.com> wrote:
> 
>> Hi Jack,
>> 
>> I use the N3ZI DDS2 VFO ( http://www.pongrance.com/super-dds.html ) with an amplifier to drive my old boatanchor rigs, including the 20A.
>> 
>> I can send you details if you're interested in that approach.
>> 
>> 73,
>> ed - k9ew
>> 
>> On Thu, Oct 23, 2014 at 7:19 PM, Jack <wa9nqw at nconnect.net> wrote:
>> Hello to the group,
>> 
>> I do not want to highjack this thread, but I have a quick question.
>> 
>> I have acquired a 10A and a 20A and have no vfos.
>> 
>> Please steer me to DSS VFOs that you have had success with.
>> 
>> Thanks & 73.
>> 
>> Jack WA9NQW
>> > On Oct 23, 2014, at 1:41 PM, Michael Marx <sndtubes at vacuumtubes.com> wrote:
>> >
>> > Thanks for the info on Nick Tusa.  Actually I know Nick and have emailed him also. He hasn’t responded to my last 2 emails, so I think he’s tied up with other stuff.  I just tried emailing him again.  I hope there’s nothing wrong…..  I think he’s subbing out some of his work to W0YVA.
>> >
>> > I bought my 600L from Nick and it’s very nice.  It’s working great with my Ranger and I am hoping I can ultimately pair up a really nice 20A to it.  I will use it with one and possibly 2 DDS VFO’s.  I will for sure use the DDS VFO in place of the old command set VFO.   It is already working well with the 20A.  I may buy a very basic DDS VFO to substitute the 9 MHz crystal with.  I would think it would be the most stable option.  Just set it to 9 MHz and forget it.
>> >
>> > I’d still like to find a 20A “ready to go”.
>> >
>> > Mike
>> >
>> >
>> > Michael Marx
>> > sndtubes at vacuumtubes.com
>> > 636-939-9190
>> >
>> > SND Tube Sales
>> > 105 N. Division St.
>> > Bonne Terre, MO  63628
>> >
>> >
>> >
>> >
>> > On Oct 23, 2014, at 1:33 PM, GRANT YOUNGMAN <nq5t at tx.rr.com> wrote:
>> >
>> >>
>> >>> On Oct 23, 2014, at 1:16 PM, Michael Marx <sndtubes at vacuumtubes.com> wrote:
>> >>>
>> >>>
>> >>>
>> >>> I also have a pretty nice 200V which works fine except for the stupid PTO.  Anyone out there rebuild these?  I found the instructions on line but look a bit scary to me.
>> >>
>> >> Nick Tusa rebuilt the PTO in my 100V several years ago.  Don’t know if he is still providing the service because he’s pretty busy with his real business, but you might try him through http://www.ce-multiphase.com/index.html
>> >>
>> >> Grant NQ5T
>> >
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