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Re: [Amps] Tentec 425 RX problem

To: (John), Peter <>,
Subject: Re: [Amps] Tentec 425 RX problem
Date: Sun, 01 Jul 2007 20:11:34 +0000
List-post: <>
John can you help Peter.


-------------- Original message -------------- 
From: Peter <> 

> Hi 
> I face a problem with a TenTec Titan 425 amp. 
> I got this amp second hand and I have this problems since then 
> What happens: 
> The amp is hook up to a K2 and give 1500W out with 70 W input that ok! 
> Its setup to key via PTT (no full break in) 
> I got a delay for 1 second when switch back to RX. 
> But this happens only when the amp get power out and a TX for more then 
> 1 sec.. 
> When there is no drive power (or very low ( 0,1W)) or when the TX is 
> very short (1-2 dids in CW) there is no delay. 
> I have make a small video clip to see what I mean. 
> Its on 
> Its about 2Mb of size 
> (maybe you need Quicktime to see it) 
> I do RX/TX on a carrier. 
> First I transmit a few short dids and get RX immediately 
> Then a bit longer TX and see it takes 1 sec to get full RX 
> Then a few sort TX and all ok. 
> Then reduce power to 0,1W and a longer TX with a good RX 
> For this video the TX input was about 5W and get about 200W out. 
> I have already replace the vacuum output relais but still the same 
> trouble during RX. 
> I have looked at the manual, but can't figure out how the input is switched. 
> Any advise? 
> Peter PC2A 
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