[Amps] output of SB220 typical TSPA

[Joe Isabella]

I was getting approximately 1100-1400W PEP on SSB out of my TL-922 (depending on band) with fresh 3-500ZGs and 245V+ line V with 100W drive, FWIW.
 
Joe, N3JI


----- Original Message ----
From: Will Matney <craxd1 at verizon.net>
To: jtml at lanl.gov; amps at contesting.com
Sent: Monday, July 17, 2006 12:40:45 PM
Subject: Re: [Amps] output of SB220 typical TSPA


John,

I don't think line voltage would amount to much, maybe 50-60 VDC more if there was a 5 VAC raise on the 
line. I don't think that's enough to get 200 more watts. My guess is the wattmeters some use are a little loose.
I've seen this many times where they were off this much.

Best,

Will

*********** REPLY SEPARATOR  ***********

On 7/17/06 at 11:12 AM John T. M. Lyles wrote:

>>I've never seen a pair of 3-500Z's driven with 100 watts
>>produce 1500W PEP ***on an accurate power meter*** with only
>>3000V on the anode.
>
>>
>>All of my SB220's, even with the grids grounded, only make
>>around 1200-1300 with100W drive on a known accuracy meter.
>
>I concur with W8JI here, as I have never seen more than 1300 watts 
>from my SB220 using a Bird 43 and a peak reading modification to it, 
>with my IC735 flat out at 100 Watts of drive. Maybe some people have 
>high line voltage and get more? Or are measuring into a non-flat load 
>(reactive)?
>
>73
>John
>K5PRO
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