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Re: [Amps] Considering an Alpha 76PA

To: "Mike, K6BR" <noddy1211@sbcglobal.net>, <amps@contesting.com>
Subject: Re: [Amps] Considering an Alpha 76PA
From: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 31 Oct 2007 16:52:27 -0400
List-post: <mailto:amps@contesting.com>
No, it has 10 470 Ohm 2W carbons in parallel.

Carl
KM1H


----- Original Message ----- 
From: "Mike, K6BR" <noddy1211@sbcglobal.net>
To: <amps@contesting.com>
Sent: Wednesday, October 31, 2007 3:00 PM
Subject: Re: [Amps] Considering an Alpha 76PA


> Does it have a tuned input?
>
> Mike
>
> -----Original Message-----
>
>
> The nice thing about the 3 holer is that 100W of drive is split 3 ways and
> doesnt overdrive. Keep that grid current down, limit output to 1200-1300W
> and they will have a long happy life. Problems start when owners try and 
> get
>
> 1800W out.
>
> Carl
> KM1H
>
>
> ----- Original Message ----- 
> From: "Roger" <sub1@rogerhalstead.com>
> To: <Gary@doctorgary.net>; <amps@contesting.com>
> Sent: Wednesday, October 31, 2007 2:28 PM
> Subject: Re: [Amps] Considering an Alpha 76PA
>
>
>>
>>
>>
>>>I own(ed) an Alpha 77SX serial 2931 & it went to ETO for
>>> repair after an internal arc-over. They lost track of it when they
>>> relocated & I'm still out an amp or compensation. Someone,
>>> somewhere has my 77SX that ETO/Alpha should have
>>> returned to me but never was.
>>>
>>> I need another amp and am considering an Alpha 76PA as I remember
>>> using one at field day and it seemed like a fairly straight forward
>>> amplifier. I'll be using it with a corsair II.
>>>
>>> I have no idea what ta 76pa is selling for but I know the tubes are
>>> hugely overpriced to replace. Anyone know of one of these amps in
>>> decent condition?
>>
>> The 76A is a nice amp. The only real considerations are watching the grid
>> current on tune up and of  course the price of the tubes. There are two
>> versions with the difference being 2 or 3 tubes. There's a pair of 8874s
>> on
>> e-bay at present with the current bidding over $700 for the pai.   I've
>> seen
>> very nice ones go for $750 USD and some scruffy ones that needed the 
>> panel
>> replaced (bad paint) for over $1500.  Typically the prices do vary over
>> the
>> range listed with nice ones covering the whole range, but I'd say the 
>> nice
>> two tube tend toward $1000 to $1200 with the three tube units going for a
>> bit more.
>>
>> I've been using the two tube version for some years now and it's a great
>> conventional amp that has very little cooling noise. Others may have a
>> different opinion.
>>
>> BTW, it's warm enough my BIG cat likes to sleep on it so I have to look 
>> to
>> see where he is before firing up.
>>
>> 73
>>
>> Roger (K8RI)
>>>
>>> Any caveats with this amp I should consider?
>>>
>>> Thanks
>>>
>>> 73,
>>>
>>> Gary
>>> ka1j
>>>
>>> offlist is fine if you know of one that's available.
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>>
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