Amps
[Top] [All Lists]

Re: [Amps] 833A/GU-48 x4 Amp support

To: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>
Subject: Re: [Amps] 833A/GU-48 x4 Amp support
From: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 27 Feb 2012 05:11:52 +0800
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I don't think 833A is a good option.As it have  long  electrode and bad 
freqence response. I'm afraid it can not work in 20m in 4X 
parallel(self-oscillation).
3CX3000A7/F7 is better. But if you use ACOM2000A as driver, it will over 
drive easily.The drivering power is 400W (max)  for 3CX3000A7/F7. or you can 
use low/ medium  Mu triode
in GG like 3CX3000A1/3CX2500A3..., they need more driving power. Just my 
thought.
     73!Hsu

-----原始邮件----- 
From: Máximo EA1DDO_HK1H
Sent: Sunday, February 26, 2012 6:00 AM
To: amps@contesting.com
Subject: [Amps] 833A/GU-48 x4 Amp support



Hi all,

I am not an amps expert but I am thinking to build an amplifier using 4 x 
GU-48.
I guess GU-48 is equivalent to 833A, not sur if all specs are same.

This is trying to get an amp "looking beauty" and good audio quality, it is 
not looking for extremely high power. I already have an amplifier (Acom 
2000A) i can use as driver.
Something like this, but HF; 
http://www.luxurylaunches.com/entry_images/0511/17/Audio-Power-Labs-833TNT-tube-amplifier-1.jpg

Gates BC-1g is an example too; http://w5ami.net/bc-1t/833.glow2.jpg

It could be monoband amplifier for 20m, perhaps 40m too.

I thought in GU5b and GU-81M before, but I guess GU-48 is better because 
needs no specific blower and is triode (easier to build).

Please, Any of you have sperience with this kind of amplifier?
Any squematic?
Recomendations?


Thank you very much

73, Maximo - EA1DDO



_______________________________________________
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
<Prev in Thread] Current Thread [Next in Thread>