One even failed at 1500V, ouch! I have 4 bad Taylors here that failed
when installed in SB-200's but RFP wouldnt honor the buyers warranties
since they werent used right away.
They should last forever at that low voltage and are a good swap if you
cant find original JAN tubes for any 811 amp.
Carl
KM1H
----- Original Message -----
From: "Dave Harmon" <k6xyz@sbcglobal.net>
To: <amps@contesting.com>
Sent: Friday, March 13, 2009 3:25 PM
Subject: Re: [Amps] SB200 on 6m & my take
> Recently I got a set of Taylor 'Select' 572B's from RFP for use in one
> of my
> 30L-1's and I must say they have been running very well with no
> problems
> other than the little 'tang' that sticks out the side of the base is a
> little longer than the 811-A's so a small slot needs to be filed in
> the
> 30L-1 chassis to allow the 572B to fit in the socket.
>
> It would have been much easier to file the tang down on the tube but I
> didn't want to do anything to the tubes to make any warrantee
> questions pop
> up.
> Good thing too as one of them was defective and RFP replaced it with
> out
> question.
>
> Also, if using these tubes check to see that the plate is vertical
> when
> plugged into a horizontal socket....the plate on one of my tubes is
> tilted
> about 15 degrees.....it hasn't caused any problems and I quit holding
> my
> breath several weeks ago but it is something to be observed and
> replaced if
> needed.
> Other than that....I'm very pleased and operate the amp at full power
> with
> no 'events'.
> In case anyone is interested, I routinely operate the 30L-1 at 800ma
> and
> 1000 watts output.
> This is on the original power supply....it should be even better once
> I get
> around to installing the YK Systems power supply board in the amp.
>
> More recently, I installed a set of the Taylor 6146B's in an old KWM-2
> with
> the ceramic neutralizing trimmers and of course it worked just fine
> and the
> trimmer was in good position.
> This was the first time I used a non-US mfgd 6146 in any of these rigs
> and
> it worked well.
> Yes, I am familiar with the warnings of using these tubes with ceramic
> neutralizing trimmers but these trimmers are adjustable, not fixed
> neutralization like in some commercial applications of yesteryear
> where the
> use of tubes not type accepted for use could cause problems.
>
> Regards
>
> Dave Harmon
> CCA 97-535
> Midwestern Collins
> K6XYZ[at]sbcglobal[dot]net
> Sperry, Ok.
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
> On
> Behalf Of Glen Zook
> Sent: Friday, March 13, 2009 12:55 PM
> To: amps@contesting.com; KB0NLY
> Subject: Re: [Amps] SB200 on 6m & my take
>
>
> The "Taylors" that R.F. Parts sells are Chinese. R. F. Parts acquired
> the
> Taylor trademark a while back. However, the 572B tubes that Taylor
> brands
> with the Taylor trademark are supposedly "special" runs from the
> Chinese
> sources and supposedly are of a higher quality than the "run of the
> mill"
> Chinese tubes.
>
> Glen, K9STH
>
> Website: http://k9sth.com
>
>
> --- On Fri, 3/13/09, KB0NLY <kb0nly@mchsi.com> wrote:
>
> I tried a pair of those Chinese ones, ended up selling them off and
> getting
> a pair of Taylors from RF Parts. The Chinese ones were junk. I also
> heard
> that they aren't not made for horizontal use as in the SB-200 because
> they
> don't have the proper internal support and will sag when they get hot.
>
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|