--- In ham_amplifiers@..., "Peter Voelpel" <df3kv@...>
wrote:
I guess the YC-243 is the same tube with a different socket
73
Peter
######### The YC-243 is a SOCKETLESS tube. They took a 3CX-
4500F3 industrial heater tube [looks identical to a 3x6.. except it
has no socket, is low mu and has a grid flange.. and lugs for fil]
and stuffed a hi mu grid in it.
### I have been teying to get through Eimac's head that sockets are
a pain in the ass... and are failure prone components... just ask
any broadcast engineer. The sveltlana 6000A7 is an excellent
tube.... u just won't be able to find anybody to rebuild one in the
USA.
### The socket for the 3x3 and 3x6 is now up to $375.00 from RF
parts [includes the grid ring]
### The EIMAC YC-243 sells for LESS than the EIMAC 3x6 .
### I posted a PDF I got from Eimac... on the YC-243...
under "files" on this site. It does have some minor errors in
it... which will get corrected.
### I paid $1100.00 for mine a few yrs back..... which is same
price as buying a 3CX-3000A7 + socket ... and way less than a 3x6 +
socket. In fact the YC-243 was less than the socketed Eimac 3x6.
Both the 3x6 and the YC-243 are an easy 9700 w CCS anode diss
too...... the sleeper of the year.
## Sockets are dead.. dead... toast, obsolete.
## Throw away tubes like 8877's are a joke. Even Ted Henry said
u gotta be nuts to buy one new. A new 3CX-3000A7 is exactly $50.00
more than a new 8877. [the 3x3 is rebuildable]...... which would
you want? A 3x3 with 50 w of drive will do 1500 w out.... and
200w of drive will give u 5200 w out... and very clean imd.
### The 3x6 and esp the YC-243 imo.. blow em all away. It's the
biggest bang for the buck bar none. None of the rebuider's have
ever seen a YC-243 with a blown out grid either.
### we are not gonna even discuss stuff like 3CX-800A7's or 3CPX-
800A7's.
## The russian 4CX-800A7's while cheap..for now... suck huge idle
current. Ask anybody with a QRO amp.... 450 ma zsac... and 675 ma
on the 3 x holer.
## If the engine under ur hood of ur car isn't big enough... get a
bigger one... don't stuff 3 x engines in there.
### Svetlana does make a 3000F7.. which has flex leads for the fil..
and also a flex lead for the grid. Fellows will toss the grid flex
lead... and replace with a vac cap flance or a 2 x piec clamping
block. Eimac still makes a 3CX-3000F7 as well.
## If Svetlana now makes a socketless 6000A7... that's news to me...
or a mis print. Where did u see it ??
Later... Jim VE7RF
-----Original Message-----
From: ham_amplifiers@...
[mailto:ham_amplifiers@...] On Behalf Of 1800 Toll Free
After having conversed with Jim over the last few days via email,
I'm
inclined to believe the new "tube of choice" is going to be the YC-
243...
It seems like the way to go.
Not to mention, the 11 meter market will probably sustain the
existance of the tube :) lol
--Toll_Free
On Wed, 17 Jan 2007 15:38:33 -0800, Peter Voelpel <df3kv@...>
wrote:
A reliable and not too expensive solution might be this version
of
3CX6000A7 by Svetlana:
"Better mechanical rigidity and long lasting concentricity of
the
filament is obtained from the improved mesh filament design
contributing
to a longer life. Flexible leads connect to the filament
terminals and a
flange is connected to the grid. The flange provides a
convenient way to
mount the tube."
Product ID: SKU15665
Price: ???594.94
including VAT 19% (???94.99)
[plus shipping]
Unfortunately not in stock at the moment
73
Peter
________________________________
From: ham_amplifiers@...
[mailto:ham_amplifiers@...] On Behalf Of Robert B.
Bonner
The trend is for cheap reliable power.
--
*Ratings are for transistors, tubes have guidelines*
Yahoo! Groups Links
