Jeff, you're correct about old used linear amps. It might just be
better to get a used Ameritron amp with the cheaper 3-500s
or 811s in the finals. They will have all of the modern features
that one needs these days. I've been very happy with my AL-80B
for five years now, but cheaper used Ameritrons are available
for sure.
73, Gary K5AMH
On 8/31/2020 11:46 AM, Jeffrey Carson via BVARC wrote:
I currently own an sb200 and 221 from craigslist. Be aware, when you
buy one of these older amplifiers they do require modification to
interface with modern radios. You need to know how to open and read
schematics to install the soft key modules. Also, be prepared to
replace the power supply board and the caps as these are major fail
points of these amps. So yes, I got my sb200 for $250 but had to put
another 200ish into it and lots of time to make it what I really
wanted. This puts it right at where a modern al-811 will be on the
used market. Just food for thought. Dont go buying a $250 amp on
craigslist and think its "turn key" and wont need work. You may get
lucky and get good tubes as I did, but 572b tubes are not cheap like
811s and i'm just now looking at RF parts they seem to be out as well
as other sites.
Also, these were "kits" brand new. So it also comes down to who
assembled it. My 200 was nicely done, the 221 was not so nice.
Jeffrey
KF5ONT
On Monday, August 31, 2020, 01:30:49 AM CDT, Andy via BVARC
<[email protected]> wrote:
I run a 55 year-old SB-200 I got for $250.
It does about 600W out, and is awesome in pileups.
The seller even included a pair of spare output tubes.
Very happy...
Andy W5ACM
-----Original Message-----
From: BVARC [mailto:[email protected]
<mailto:[email protected]>] On Behalf Of Rick Hiller via BVARC
Sent: Sunday, August 30, 2020 7:20 PM
To: BRAZOS VALLEY AMATEUR RADIO CLUB <[email protected]
<mailto:[email protected]>>
Cc: Rick Hiller <[email protected]
<mailto:[email protected]>>; [email protected]
<mailto:[email protected]>; Martin Blaise <[email protected]
<mailto:[email protected]>>
Subject: Re: [BVARC] Amplifier
As stated multiple times before. FL 2100b. 2 for sale in town. $350
SB200’s on line >$300
600 watt amps easily.
> On Aug 30, 2020, at 5:10 PM, Martin Blaise via BVARC
<[email protected] <mailto:[email protected]>> wrote:
>
> I think I’ve asked before but are there any smaller hf amps that do
> like maybe 300 watts. I know this sounds bad but the pandemic killed
> most of my ham radio budget. I cannot afford $1,500 for equipment. Any
> suggestions? Thanks ________________________________________________
> Brazos Valley Amateur Radio Club
>
> BVARC mailing list
> [email protected] <mailto:[email protected]>
> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
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