Any pictures?
Bill
wa4lav
________________________________________
From: amps-bounces@contesting.com [amps-bounces@contesting.com] On Behalf Of
donroden@hiwaay.net [donroden@hiwaay.net]
Sent: Saturday, May 14, 2011 12:39 AM
To: amps@contesting.com
Subject: Re: [Amps] testing a big amp
One Hundred and Ten Amps ??
Not very efficient @ 180KW load.
Two point eight megawatts in / 180 KW out
Don W4DNR
Quoting John Lyles <jtml@losalamos.com>:
> A TH628 double-ended tetrode ("Diacrode") has been purring along all
> day heating a water load with 26 kV plate voltage, and 110 amps of
> plate current. At 200 MHz, it's been
> quite a leap, average power today was 180 kW in the load, 2 MW peak
> in pulses. A little RF leakage was causing havoc before, now fixed.
> On Monday, it'll stretch out with around
> 250 kW average, based on the good test results today, Friday, the
> 13th. I'm posting this AFTER testing - worried about even trying
> today. Me, superstitious?
> I remember being nervous about dipping the plate too slowly on a
> 3-500Z at full voltage in my SB220 years ago. This monster makes me
> jumpy when someone closes a book or drags a chair
> around the test bench... Is been an experience not to forget, for this ham.
> 73
> John
> K5PRO
>
>
> _______________________________________________
> 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
|