[50mhz] 6m conversion of an Ameritron AL-572?

[Chris Boone]

Two 572Bs can do it but its runs them hard...4 572Bs may be a problem due to
capacitance and other factors....(input Z would be half that of 2
tubes...maybe hard to match on 50MHz with reasonable efficiency)...BUT I
would be interested in seeing if it can be done...I have been looking at one
of these amps and thinking "man it would be nice if it covered six as well"!
:)

Chris
WB5ITT


-----Original Message-----
From: 50mhz-bounces at mailman.qth.net [mailto:50mhz-bounces at mailman.qth.net]
On Behalf Of Carl
Sent: Friday, January 09, 2009 4:02 PM
To: Danny Pease; w7gj at q.com; 'Magic Band EME'; '50 MHZ Mailing List'; 'Rocky
Mountain VHF Plus'; 'Western States Weak Signal Society'; 'PNWVHFS'
Subject: Re: [50mhz] 6m conversion of an Ameritron AL-572?

Yup, Ive converted over 250 SB-200's over the years.
Plus many other tube types.

Carl
KM1H


----- Original Message ----- 
From: "Danny Pease" <dpease at adams.net>
To: <w7gj at q.com>; "'Magic Band EME'" <magic at 6meme.com>; "'50 MHZ Mailing 
List'" <50mhz at mailman.qth.net>; "'Rocky Mountain VHF Plus'" 
<rmvhf at rmvhf.org>; "'Western States Weak Signal Society'" 
<wswss at mailman.qth.net>; "'PNWVHFS'" <PNWVHFS at googlegroups.com>
Sent: Friday, January 09, 2009 3:54 PM
Subject: Re: [50mhz] 6m conversion of an Ameritron AL-572?


> There are a number of SB-200 converted to 6 meters, but I don't 
> remember
> hearing of any amps that use four 572 tubes working on 6 meters. As 
> was
> mentioned before, I am quite sure it would have to be a 6 meter only
> conversion rather than just adding 6 meters along with HF.
> Maybe the AL-572 could be traded for a 6 meter amp?
>
> NG9R
>
>
> -----Original Message-----
> From: 50mhz-bounces at mailman.qth.net 
> [mailto:50mhz-bounces at mailman.qth.net]
> On Behalf Of Lance Collister
> Sent: Friday, January 09, 2009 10:08 AM
> To: Magic Band EME; 50 MHZ Mailing List; Rocky Mountain VHF Plus; 
> Western
> States Weak Signal Society; PNWVHFS
> Subject: [50mhz] 6m conversion of an Ameritron AL-572?
>
> Hello!
>
> K7CA has an Ameritron AL-572 (which uses four 572 tubes for 160-15m) 
> and is
> interested in learning if anyone has had any luck in converting this 
> to 6m
> (or
> simply adding the 6m band).  He is interested in activating CE on 6m 
> EME,
> but
> currently has no other amp.  Any suggestions or guidance would be 
> greatly
> appreciated!  MNI TNX and VY 73, Lance
>
> -- 
> Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, 
> ZF2OC/ZF8)
> P.O. Box 73
> Frenchtown, MT  59834  USA
> QTH: DN27UB
> TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
> 2m DXCC #11, 6m DXCC #815
>
>
> Moderator: Ray Brown, KB0STN
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