Hi Bob,
The Titan 425 uses a pair of 3CX800A7 triodes. Your advice to watch the
(control) grid current is good. There is no screen grid.
DE N6KB
Bob McGraw - K4TAX wrote:
> For RTTY it is rated 1000 watts output for 10 minutes of transmit time with
> a 50% duty cycle. i.e. 10 minutes transmit, followed by 10 minutes of
> receive. Follow the TUNE UP procedure in the manual and do not over drive
> the amp. Pay very close attention to Screen current and grid current. Be
> sure the load/antenna is near 50 ohms i.e. SWR <1.5:1 before starting to
> tune the amp. Start with 10 watts of drive from the exciter.
>
> While it is well protected, overdrive can make for expensive and sudden
> tube replacement needs.
>
> And, if you don't have a manual, order one from Tentec.
>
> 73
> Bob, K4TAX
>
>
>
>
> ----- Original Message -----
> From: <W1dxh@aol.com>
> To: <tentec@contesting.com>
> Sent: Thursday, January 17, 2008 4:12 PM
> Subject: [TenTec] 425 titan
>
>
>
>> hello to all,
>> i am a newbie to rtty and was wondering if anyone has
>> used the 425 titan on rtty? at what power did you run it at, and is there
>> any
>> thing i should know before hand. thanks any info appreciated. don't want
>> to
>> smoke anything hi hi.
>>
>> 73's,
>> steve w1dxh
>>
>>
>>
>> **************Start the year off right. Easy ways to stay in shape.
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>
>
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