I was doing some characterization of a SB220 transformer for a 1KW RTTY amp
build a few years back. The SB220 transformer did not make the cut, in fact
the SB200 transformer was nearly bullet-proof by comparison. The SB220
transformer I had here may have been a walking-wounded sample. Or maybe
that's the way they were built. But I can say that the SB220 transformer
definitely makes a pretty cool bang when it goes up. And generates lots and
lots of smoke.
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-----Original Message-----
From: Richard Solomon
Sent: Tuesday, December 06, 2016 2:14 PM
To: amps@contesting.com
Subject: Re: [Amps] The cost of amplifiers, radios
1,300 Watts out at ~ 65% efficiency
equates to 2,000 Watts input.
Better save your nickels for that new
power xfmr you will soon need !!
I have heard these tales before of
folks claiming upwards of 1,500 Watts
out on an SB-220.
I file them away along with the photo's
I took of the Loch Ness Monster.
73 es HH, Dick, W1KSZ
On Tue, Dec 6, 2016 at 12:49 PM, Paul Baldock <paul@paulbaldock.com> wrote:
I run an SB220 modified for 6M (single band). 1300W PEP out.
- Paul
At 09:13 AM 12/6/2016, Richard Solomon wrote:
I would think the efficiency on 6
would be rather poor.
Three tubes in parallel ??
73 es HH, Dick, W1KSZ
On Tue, Dec 6, 2016 at 10:01 AM, Paul Baldock <paul@paulbaldock.com>
wrote:
> At 05:16 AM 12/6/2016, you wrote:
>
>> ## legal limit here in canada is 2250 w pep out... measured at the
ant.
>>
>
>
> An even better reason than "the Donald" to move to Canada.
>
> My ideal amp would be and automated 3 x 3-500Z, 160m to 6m. $500 total
for
> brand new replacement tubes.
>
> - Paul
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|