[Amps] relative value of a Henry 4K

[Gary Smith]

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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> > 
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