[Amps] Roger's complete correction on tubes

Wed Jul 1 04:01:20 PDT 2009

Good job Roger,

Yep, I could not remember correctly, strangely enuf.

I like my DTR-2000 Dentron but it is just what 

Dentron wanted to put out, hi power amps for

small money (relatively).  Everything abt it is

cheap except the tube which is Eimac but

IT BLOWS RF AND GETS OUT LIKE A BANDIT.

Remember the old amp  named "Bandit" ? 

Who made it?

My amp line up is 

Alpha 87a updated, sick

Alpha 76 PAC running great

Ten Tec Titan dead.

Dentron DTR-2000 still working

ICOM IC-2KL, working, and have 3.

I am in market for 3 of the 8874.

At one time I also had, Henry 2k floor model, NCL-2000, TL-922, Heath SB-220 and SB-

230, MLA-2500B, and Alpha 76PA, but never a 30L-1.   TEST: What is difference between

 Alpha 76A, 76PA, and 76PAC??????????????   Oh, radios!!!!  73,

Charles Harpole k4vud at hotmail.com 

> Date: Wed, 1 Jul 2009 04:21:07 -0400
> From: sub1 at rogerhalstead.com
> To: k4vud at hotmail.com
> CC: hsu4qro at gmail.com; herzog at frontiernet.net; amps at contesting.com
> Subject: Re: [Amps] 8874?
> 
> 
> 
> Charles Harpole wrote:
> > about 20 yrs ago, I bought a Dentron DTR-2000 for $800.
> >
> > 
> > 
> The DTR-2000 used a single 8877/3CX1500A7 which is much larger 
> physically than the 8874. I was getting 8877s at the time for $305 (at a 
> discount)and had a number of them (when the DTR2000 first came out) I 
> liked the amp, but the voltage regulation was poor and IIRC a bit on the 
> low side. I had one of the low voltage caps explode. It was loud enough 
> to make my ears ring. It blew the can right off, which hit the top of 
> the cabinet. The can looked like a 38 wad cutter that had hit something 
> really hard.
> 
> The MLA2500 used the 8873 (Aluminum anode and transverse cooling) I 
> believe while the 8874/3CX400 is used in the old alpha 76 and 78 series. 
> Back then it was much less expensive.Now days you can get 3CX800s for 
> less although new 8874s and 3CX800s from Eimac are quite pricey.
> 
> 73
> 
> Roger (K8RI)
> > I figured I bought the tube (which is what a new one 
> >
> > 
> >
> > went for then) and got the amp for free. It drives
> >
> > 
> >
> > so easily and puts out POWER.... great tube.
> >
> > 
> >
> > Anyone know how many (less than 500???)
> >
> > 
> >
> > DTR-2000 were made???? 73
> >
> >
> >
> > Charles Harpole k4vud at hotmail.com 
> >
> > 
> >
> > 
> >
> >
> >
> >
> > 
> > 
> >> From: hsu4qro at gmail.com
> >> To: herzog at frontiernet.net; amps at contesting.com
> >> Date: Tue, 30 Jun 2009 12:18:02 +0800
> >> Subject: Re: [Amps] NCL2000
> >>
> >> That is natural, My friend pick up a Heny Tempo 2001, the cost only $250, he ask me to find a pair inexpensive brand new NOS EIMAC 3CX8874A, a guy who in this list ask $400/ea.Could you help him
> >> to find inexpensve pair?
> >> 73!Hsu 
> >> ----- Original Message ----- 
> >> From: "Herzog" <herzog at frontiernet.net>
> >> To: "Ham-amps" <amps at contesting.com>
> >> Sent: Tuesday, June 30, 2009 8:16 AM
> >> Subject: [Amps] NCL2000
> >>
> >>
> >> 
> >>> RE: Hi,
> >>> I have some brand new NOS RCA 8122 for sale,I ask $350/ea or tell me 
> >>> what's your best offer.
> >>> And another guy wanting parts of no description.
> >>>
> >>> Herzog, from Different world! Prices, I Had my NCL2000 up for sale, 
> >>> asking $600; and no takers for 2 years. And it included 4 spares 811 
> >>> tubes, plus the ones inside a perfect operating Ampflier
> >>> I finally just gave to antique collectors!! See if the AWA wants to 
> >>> sell. (Antique Wireless Association.)
> >>> _______________________________________________
> >>> Amps mailing list
> >>> Amps at contesting.com
> >>> http://lists.contesting.com/mailman/listinfo/amps
> >>> 
> >> _______________________________________________
> >> Amps mailing list
> >> Amps at contesting.com
> >> http://lists.contesting.com/mailman/listinfo/amps
> >> 
> > _______________________________________________
> > Amps mailing list
> > Amps at contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
> > 