Steve
> Have you seen and touched this amplifier?
No, it's 1,000 miles from here though I'm heading that
way in a month.
>
> I'd at least lift the lid, unscrew the RF section cover (containing the tube
> and plate tank) and have a look in there to see if there's any evidence of
> what caused the power supply failure! Possibly the tube became an expensive
> fuse-?
Possible though the description was more of
transformer smoke & smell.
> And "power supply damage" can be minor, like blown rectifiers, or major,
> like a blown transformer and/or choke. I'd want more detail on this before
> trying to evaluate the amp's worth.
Of course. I'm trying to get an idea what a working one
might be worth to know if I want to muck with it or not. I
want one for myself, not for resale.
I own an Alpha 77SX serial 2931 & it went to ETO for
repair. They lost track of it when they relocated & I'm
still out an amp or compensation. Someone,
somewhere has my SX that ETO/Alpha should have
returned to me.
I need another amp.
> I didn't know any 4K's used pentodes.
According to Henry there was a 4K, a 4K-2 and the
4K Ultra. The 4K & the 4K-2 used the 5CX1500. The
Ultra used the 3CX1500A7
Gary
KA1J
> WB2WIK/6
>
> "If everything seems under control, you're just not going fast enough." -
> Mario Andretti
>
> > -----Original Message-----
> > From: Gary Smith [SMTP:mandolinist@interlync.com]
> > Sent: Thursday, June 06, 2002 3:15 PM
> > To: amps@contesting.com
> > Subject: Re: [Amps] relative value of a Henry 4K
> >
> >
> >
> > Turns out there's more than one Henry 4K, this is the
> > one with the pentode in it. I'm sure that makes a
> > difference.
> >
> > Gary
> > KA1J
> >
> >
> > > Hi,
> > >
> > > I was wondering what the relative value of a Henry 4K
> > > with a bad power supply would be worth.
> > >
> > > I've come across one and all anyone knows is that it's
> > > smoked but the PS seems to be the best culprit due to
> > > the smoke & odor when it went bad (I wasn't there to
> > > experience the fall for myself).
> > >
> > > Also, what's the expected output from a 4K with 90
> > > watts drive?
> > >
> > > Direct answer is fine or via the group.
> > >
> > > Thanks
> > >
> > > Gary
> > > KA1J
> > >
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> > > Amps@contesting.com
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> >
> >
> >
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