[NJARC] 7094 Tetrode Tube

[Scott Roberts]

One of the guys on the Hallicrafters list suggested solid stating the 866AX's as well: How would I go about it? I'm at the point I just want to get the Halli BAs in operation! (still need a decent antenna tho...)

73!
Scott
KC2TYV


--- On Tue, 12/23/08, John Ruccolo <jr6v6gt at yahoo.com> wrote:

> From: John Ruccolo <jr6v6gt at yahoo.com>
> Subject: Re: [NJARC] 7094 Tetrode Tube
> To: "John Dilks K2TQN" <oldradio at worldnet.att.net>, "NJARC Radio Club" <njarc at mailman.qth.net>, "JOE CRO" <n3ibx at verizon.net>, ng19delta at yahoo.com
> Date: Tuesday, December 23, 2008, 1:19 PM
> Hi Scott,
> 
> Somewhere, I have an article on converting the HT-41 to
> 811A's or 572B's or some other power triode. The
> 7094's had a reputation for not being very rugged. I
> have no first-hand experience with them, but that's what
> I've read. They may resemble the 813 electrically, but
> they're not nearly as rugged. It's always been the
> "rap" on that tube.
> 
> I'll see if I can find the article for you. I'm
> certainly *not* recommending conversion, but it's a good
> thing to keep in your hip pocket as a last resort.
> 
> Also, I would recommend Solid-State replacements for the
> 866's. I'm curious how others feel about that.
> Frankly, mercury-vapor tubes make me nervous....
> 
> 
> Regards,
> 
> John
> 
> 
> --- On Tue, 12/23/08, Scott Roberts
> <ng19delta at yahoo.com> wrote:
> 
> > From: Scott Roberts <ng19delta at yahoo.com>
> > Subject: Re: [NJARC] 7094 Tetrode Tube
> > To: "John Dilks K2TQN"
> <oldradio at worldnet.att.net>, "NJARC Radio
> Club" <njarc at mailman.qth.net>, "JOE
> CRO" <n3ibx at verizon.net>
> > Date: Tuesday, December 23, 2008, 12:17 PM
> > Visit our web site - See http://www.njarc.org
> > _______________________________________________
> > The seller's e-bay ID is "hugotv", and
> his
> > rating is pretty good (99.1%)
> > 
> > I have been in contact with him since it arrived, but
> > nothing has been completely resolved as yet. The
> purchase
> > was a "Buy It Now" for a reasonable price,
> with no
> > mention tubes were not included. We did discuss the
> best way
> > to ship them- I had recommended my favorite of packing
> bags
> > of packing peanuts around them in situ- it keeps them
> from
> > moving, and/or being hit by anything, and is a pretty
> sturdy
> > method. He said he was going to pack them inside, but
> > removed. Apparently they were taken out & shipped
> > separately, via Parcel Post. I have had problems with
> PP in
> > thepast, taking too long to arrive(which is why I tell
> > people NEVER use it! Always use Priority Mail)
> > 
> > He has offered to buy back the unit, but I figured a
> bird
> > in the hand was better than none- I am at least ahead
> by
> > having the machine... So I told him we'd keep
> looking
> > for the tubes, and he told me he'd check with the
> Post
> > Office.
> > 
> > I'm hoping to find something I can adapt in, if
> the
> > 7094s fail to appear. I am looking over the schematics
> &
> > cogitating. I also need the 866AX's, but found a
> place
> > with NOS ones in very nice shape around $30 a piece.
> (Does
> > the club or anybody have them cheaper in NOS or good
> used
> > condition?)
> > 
> > Thanks!
> > Scott
> > 
> > 
> > 
> > 
> > 
> > --- On Tue, 12/23/08, John Dilks K2TQN
> > <oldradio at worldnet.att.net> wrote:
> > 
> > > From: John Dilks K2TQN
> > <oldradio at worldnet.att.net>
> > > Subject: Re: [NJARC] 7094 Tetrode Tube
> > > To: ng19delta at yahoo.com, "New Jersey Antique
> > Radio Club" <njarc at mailman.qth.net>
> > > Date: Tuesday, December 23, 2008, 4:37 AM
> > > Hi Scott,
> > > 
> > > If this dealer is on Ebay, what is his seller
> name? 
> > There
> > > is one on there who is notorious named
> radio-mart, or
> > > similar.  The guys have had many - many problems
> with
> > him. 
> > > (I hope it isn't him for your sake.)  Ebay
> seems
> > to do
> > > nothing about him?
> > > 
> > > Either way, please warn us with his name.  They
> are
> > pricey,
> > > he probably sold them seperately.
> > > 
> > > One on ebay now $114.
> > > Item number: 360062939302
> > > 
> > > 73, John
> > > 
> > > At 04:11 AM 12/23/2008, you wrote:
> > > > Visit our web site - See
> http://www.njarc.org
> > > >
> _______________________________________________
> > > > Anybody have any good suggestions for what
> to
> > > substitute for a pair of 7094 beam tetrodes? I
> have a
> > > Hallicrafters HT-41, and the tubes never arrived
> with
> > it...
> > > I am still bugging the dealer, but have little
> faith
> > > anything will come of it- he claims they were
> shipped
> > Parcel
> > > Post... I don't know if he even had them at
> all
> > when he
> > > had the radio!
> > > > 
> > > > Thanks
> > > > Scott
> > > >
> _______________________________________________
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> > > > NJARC at mailman.qth.net
> > > >
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