I have never done anything with the HA-14.
I bought it many years ago while visiting the states.
Had the matching A.C. P.S.
But when I got to the airport my bags were overweight.
They wanted $200 for another bag plus I would have needed to buy a suit
case.
So I threw the P.S. in the Garbage can at the airport.
I carried the HA-14 in my hand baggage.
I found a used home-brew supply here in DL and bought it cheap.
It was almost a basket job.
That's OK, I just wanted the transformer.
I've built several HV power supplies back in the days when I home-brewed
several amps.
Long ago but I haven't forgotten how. (hi)
I think the HA-14 will make a good mate for the Eagle when my XYL one day
promotes me to the nursing home. Each year I say, "next year I'll rebuild
that P.S.".
Of course it will get new caps.
Also, I believe Mike has a kit including PC board to rebuild the P.S.
Maybe I'll just buy it from him.
But those are winter projects.
Right now it's time to build antennas again.
73 - Rick, DJ0IP
(Nr. Frankfurt am Main)
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Dave
Edwards
Sent: Wednesday, April 01, 2015 7:10 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Centaur Tubes odd ones in parallel
Rick....Not sure I talked to you about this or not, but ...Your HA-14
amp...have you replaced the filter caps in the power supply?
...Dave
On 4/1/15 11:30 AM, Rick - DJ0IP / NJ0IP wrote:
> Bob, you have been very lucky if you have never had any problems with
> unmatched tubes.
> I certainly have.
>
> In fact I finally decided not to own any multi-tube amps anymore.
> That solved that problem. (almost)
>
> I now only have two amps, each with a single 3-500z, but...
> I also have an old Heathkit HA-14 mobile amp with a pair of 572B tubes.
> Can't seem to find a replacement for that one. There are no tiny amps
> with single tubes running that much power.
>
> I don't care much for most transistor amps.
> Their linearity is the pits!
> Though I wouldn't mind having the Elecraft 500w amp...
> Jim sure raves about his!
>
> 73 - Rick, DJ0IP
> (Nr. Frankfurt am Main)
>
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Katz
> Ajamas
> Sent: Wednesday, April 01, 2015 5:14 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Centaur Tubes odd ones in parallel
>
> Kris-
>
> Are these 811 or 572? I've never owned a Centaur but have not had any
> trouble with non-matched tubes in other amps, provided they were from
> the same OEM.
>
> A single used 811 or 572 should be pretty cheap, so how about hunting
> up one each of the missing?
>
> 73, Bob ah7i/w4
>
>
>
>
>
>
>> ------------------------------
>>
>> Message: 9
>> Date: Tue, 31 Mar 2015 15:39:40 -0400
>> From: <km2km@twc.com>
>> To: tentec@contesting.com
>> Subject: [TenTec] Centaur Tubes odd ones in parallel
>> Message-ID: <20150331193940.EK621.275017.root@dnvrco-web01>
>> Content-Type: text/plain; charset=utf-8
>>
>> Ok, guys, here is the scoop.
>>
>> My trusty Centaur seldom needs to be re-tubed, BUT now I have two
>> pairs of tubes, one pair Taylor, and the other pair Svetlana because
>> over
> time one
>> tube left the troika for the electronic dump. Yes, matched tubes are
the
>> ideal, but having a couple of pairs sitting around doing nothing for
>> me and no foreseeable makes me wonder. Just what would happen if
>> they were a mixed troika. That would leave one tube in the bin ready
>> for
> another time.
>> Any ideas on dire consequences?
>>
>> Many thanks,
>>
>> Kris KM2KM
>> MERSCHROD
>> 123 Warren Road
>> Ithaca, NY 14850
>>
>>
>> ------------------------------
>>
>> Subject: Digest Footer
>>
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>>
>>
>> ------------------------------
>>
>> End of TenTec Digest, Vol 147, Issue 34
>> ***************************************
>>
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