[Amps] caps for Alpha 77DX

Charles Harpole k4vud at hotmail.com
Fri May 28 19:37:07 PDT 2010


If u do not find them in the states, there are at least three shops in Bangkok that sell only capacitors... something to see.  Let me know if desperate.  

Charles Harpole k4vud at hotmail.com 

 

HS0ZCW

 

 




 
> From: weeksmgr at hotmail.com
> To: amps at contesting.com
> Date: Wed, 26 May 2010 23:18:08 -0500
> Subject: [Amps] Alpha 77DX
> 
> 
> I have purchased a one owner Alpha 77DX, from the estate of a recent SK. This amp had little use, and to the best of my knowledge was not used at all since about 1981/83. The original invoice (1977) and manual came with it. I brought it back to life carefully, taking the necessary precautions with the tube. It works flawlessly. There are a couple of issues.
> 
> 
> 
> First, it has the well known sticky paint problem. I have researched the archives, and looked on Alpha's site. New top and side panels are available, as is the face plate for a 77SX. I have no intention of putting a second tube in this, so would rather not put an SX panel on it. Anyone aware of another option for obtaining a new front panel, or having this one redone? 
> 
> 
> 
> The inside is in mint condition and looks new, but there is a slight trace of oil only on the top of the capacitor, so it is leaking. From the archives, this seems to be a common problem. Are folks replacing this with another oil filled cap or have banks of electrolytics been retrofitted as a fix? Any current sources for replacement caps? 
> 
> 
> 
> I have always wanted one of these. It is a beautiful amplifier inside, very heavy duty construction compared to my other amplifiers. 
> 
> 
> 
> Any suggestions will be appreciated. 
> 
> 
> 
> 73 Charlie N8RR 
> 
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