You have a lot of interesting information about this amplifier!!
It's interesting the "Frequenz-Bereichs-Analysator" and the "Logistat" to
control the tuning.
My goal is realize an amp for hf band...My first idea was reuse the rf
components with a 8877 or 3cx1500 tube with a classic manual tuning!...but when
i saw the automatic tune...
There are all the components:
-motor for capacitor and band switch
-directional coupler and others sensors for the control
...why don't try to realize an auto tune-amp??
Now i can try to understand the tune system of the commercial-ham amps and
compare that system with this system.
>From a first analysis i think that this system is complex but much
>precise....it's military application!!
73
David IZ4BOY
I have seen this amplifier briefly in the 70's, and it is related to
the
Telefunken family of servo-tune amplifiers that was used quite
widely in military and point-to-point services in the 60's and 70's.
The most known in this family was the 30 kW SV 2400/1.
It is very likely that the "inner workings" of this 1 kW PA are
similar
to the 30 kW, using the "Logistat" logic modules to govern the
automatic tuning
cycle.
To preset the tuning elements to their proper starting position,
the Telefunken amplifiers use a discriminator-based frequency
setting unit, the "Frequenz-Bereichs-Analysator" that uses an RF
sample
from the driver to select one of 28 initial settings.
I would say it would be quite diffcult to get the amplifier running
without proper
documentation.
73/
Karl-Arne
SM0AOM
----Ursprungligt meddelande----
Från: d.nanni@fastwebnet.it
Datum: May 14, 2006 11:47:00 PM
Till: sm0aom@telia.com, amps@contesting.com
Ärende: Re: [Amps] Telefunken vs2525/1
Many tanks for the help!
if i don't find nothing i try to buy this!
You know this amp??
At the moment i'm interest to understand the automatic tune system and
if i can reuse it for an 160-10m amp!!
73/
David IZ4BOY
d.nanni@fastwebnet.it
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