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Can anyone on the server help Frits... I don't have a spec sheet on 572B4...
Denny
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Subj: 572B4s
From: Frits.Jensen@mch.sni.de (Frits Jensen)
To: K8DO@aol.com
Hi Denny
You wrote, that the russian tubes from Svetlana is very good, and a catal=
og =
=2E.... and so on.
Is it possible for you just to look into your catalog and give me the =
physical messurements on their 572B4s?. I have heard, that they are sligt=
ly =
bigger than the original tubes, and that some folks have had a heck of a =
time
to built them in to a FL2000 Yeasu amp. Excellent will be a fax with the =
page
of course (0049 89 636 47729).
In advance thank you very much, and have a nice day
Vy 73 de DL4MHU Frits in Munich
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From: Frits.Jensen@mch.sni.de (Frits Jensen)
Subject: 572B4s
Message-Id: <jensen.31.001A5C44@horus.mch.sni.de>
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>From Marijan Miletic <s56a@ljutcp.hamradio.si> Fri Aug 18 19:04:36 1995
From: Marijan Miletic <s56a@ljutcp.hamradio.si> (Marijan Miletic)
Subject: DSP power
Message-ID: <73690@ljutcp.hamradio.si>
Hi Ward, thanks for interesting comments on DSP! It seems to me from AA4LR 2nd
posting that he is NOT aware of harmonic sampling so I sent him private email!
Rohde & Schwarz RX has "all you always wanted but never dared to ask" but the
price is around 10 k$! I put arbitrary >100 dB figure as oscilator noise
rarely permits more that 70 dB of effective attenuation (shielding is assumed
to be done right). As the rule of the tumb I remember Collins numbers for SSB
FIR with 64 taps, 16 biys coeff gives >60 dB out of band rejection. Floating
point DSP may help with coeff, more bits in A/D also but no quanifying idea!
73 de Mario, S56A, N1YU.
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