[UK-CONTEST] Amplifier Advice Please.

[cris at gm4fam.plus.com]

Greetings Brian

For the price the ACOM-1000 is hard to beat.

160 thru 6m operation and, has already been said, very quiet (mine is as
quiet as the shack PC!).

73 Cris
GM4FAM


> Guys,
>
> My experience with liears as below:-
>
> VHF
> 1. Linear Amp UK, various tube type ones on 4m, 6m, and 2m. Not too badly
> made , slightly better since the crowd in Reading took over design and
> manufacture, runs well under contest conditions and fairly well protected.
> 2. BECO  superb built quality and performance, cannot fault in contest
> conditions, only niggle is fan noise, so put a bit further away from
> microphone.
> 3. Telecom, nowhere near suitably protected, very high noise from fans.
> Not even my third choice amp.
>
> HF/6m
> 1. Ameritron AL1500, no 6m coverage, and has flashed over a couple of
> times in contests causing loosening of sphincter, fan noise not too bad,
> fairly reliable in full contest mode even with 100% duty cycle RTTY
> 2. ACOM 1000 , inc 6m coverage, rock steady protection and good steady
> performance on aqll HF bands and 6m, fan almost silent, deffinately the
> first choice in my shack
> 3. MFJ/Ameritrom 500w Transistor mobile amp, no 6m coverage, but not
> really tried this out in the UK.
> 4. Alpha tube automatic band switching, used one of these the 8900 while I
> was in Canada, very nice amp.
> 5. ACOM 2000, friends and contest groups use these (under-run of course in
> the UK) fairly steady and also auto band switching with remote monitoring
> head.  Quiet yes but no 6m coverage (two tubes so anode capaity too big to
> tune to 6m)
>
> If your budget stretches that far go for ACOM 1000 for HF (has the
> advantage of 6m coverage) and BECO amps for VHF.
>
> Thats my two penny worth anyway.
>
> 73 de Chris G8APB
>
>
>
>
>> To: g4odv at yahoo.co.uk
>> From: alannottage at aol.com
>> Date: Fri, 20 Jan 2012 10:53:08 -0500
>> CC: uk-contest at contesting.com
>> Subject: Re: [UK-CONTEST] Amplifier Advice Please.
>>
>>
>>
>>
>> Another thought Brian is that a lot of solid state PAs nowadays (inc. in
>> some rigs) don't sound like they're too well biased. A word like
>> 'should' (on phone I mean here) comes out like it's spelt 'thould'. Kind
>> of similar to the effect that RF feedback creates (also more prevalent).
>> If you're contesting with significant audio processing, then that's
>> probably not going to be too noticeable though.
>>
>> Either way, you don't want charlie-four-zulu sounding like
>> charlie-four-thulu :>) ...(which it doesn't at the moment btw!)
>>
>> Al G0XBV
>>
>>
>> -----Original Message-----
>> From: brian coyne <g4odv at yahoo.co.uk>
>> To: UK Contest <uk-contest at contesting.com>
>> Sent: Thu, 19 Jan 2012 20:20
>> Subject: [UK-CONTEST] Amplifier Advice Please.
>>
>>
>> I would appreciate any views on Heatherlite amplifiers for serious
>> contesting. I
>> ave read reviews on e-ham which are mixed opinion but I don't recognise
>> any of
>> he reviewers as contesters.
>>
>> was intent on importing an Ameritron ALS1300 but a local ham has offered
>> the
>> bove which would save a lot of hassle as well as expense. I could suck
>> it and
>> ee but I am no dab hand with the soldering iron and am also wondering
>> the cost
>> f replacement 3-500 bottles. This amp is pre ' Linear Amp' days and
>> labelled as
>> eatherlite.
>>
>> he amp I require will need to work hard for 24/24 or 36/40 hours in an
>> 48 hour
>> vent so tendency to overheat is a no no.
>>
>> he ALS1300 is a new model, does anyone know anything about it?
>>
>> re there any opinions on Ameritron amplifiers?
>>
>> hanks in advance for any help.
>>
>> 3 Brian 5B4AIZ..
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>>
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