[Amps] Considering an Alpha 76PA

[jeremy-ca]

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 at rogerhalstead.com>
To: <Gary at doctorgary.net>; <amps at 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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