----- Original Message -----
From: "NOLL AMIDZICH" <NAMIDZICH@wi.rr.com>
To: <amps@contesting.com>
Sent: Thursday, July 26, 2001 9:09 PM
Subject: Fw: SICK ALPHA 77DX - HEALTHY AGAIN
> The 77dx is back up and running. Tnx to all for their comments.
>
> The majority of comments indicated a likely cause being the 10 ohm- 25
watt
> step- start resistors (R1 and R2) and / or a "welded "relay (K2).
>
> The resistors were good but due to the age of the amp and the amount of
> usage were replaced anyway. The contacts on the relay showed evidence of
> oxidation and were cleaned. The blown fuse (F3) was replaced.
>
> The amp was fired up again... with the same problem (as originally
> described).
>
> The 8877 was ultimately replaced. The amp has since been used daily and
> working FB since Saturday.
>
> Over the last 18 years I've had to replace the tube three times, but this
is
> the first time the 8877 went bad and also took out F3. FWIW.
>
> The GOOD news (besides the AMP working again),
>
> 1) Now have a new out of town friend who spent the afternoon with me and
> very unselfishly shared his wealth of knowledge on diagnosing and
> "trouble shooting" the amp.
>
> 2) Have a greater appreciation for the help and advice offered on this
> reflector.
>
> 3) Can vouch for the continued great "after the sale" support by Alpha.
> This amp was purchased new in 1983. Over the years I've had various
> occasions to contact the factory and have ALWAYS been impressed by the
> support. (Glenn was very accomodating during my most recent
conversations).
>
> 4) The more I "dig" into this amp, the more I appreciate the "legacy"
label.
>
> Noll W9RN
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> ----- Original Message -----
> From: "NOLL AMIDZICH" <NAMIDZICH@wi.rr.com>
> To: <amps@contesting.com>
> Sent: Monday, June 11, 2001 9:07 PM
> Subject: SICK ALPHA 77DX
>
>
> > Hello to all,
> >
> > I have an Alpha 77dx that had been working fine until yesterday.
> >
> > Now when I turn on the amp there is no high voltage. (There is about 230
> > volts per the Alpha meter). The blower runs but the amp will not switch
> > into the "standby mode". I checked the fuses and the 2 amp "F3" fuse
had
> > blown. I replaced this fuse with another 2 amp "slow blow" fuse.
Powering
> up
> > the amp again resulted in another blown fuse after about 3 seconds.
> >
> > Any advice would be appreciated.
> >
> > Thanks
> >
> > Noll W9RN
> >
>
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