[Boatanchors] RANGER I questions

[revcom at wbsnet.org]

There was a field mod for the early Rangers that gave them
TSK feature.

Dunno when but friend of mine had one that put in the mod.
years ago.

Rod




> GE to the list,
>
> I'm restoring another RANGER I and I've come across something that begs
> me to ask if there were more than two versions of this rig.  The first
> one I restored was a "later" version and wired exactly like the
> schematic.
>
> I have the schematic for the "early" model  (without 6AL5 and 12AU7
> keyer) and fixed modulator bias.  The power trannie for the early model
> does NOT have windings for a bias rectifier.
>
> The schematic for the later model of course shows the 6AL5 bias
> rectifier and 12AU7 keyer. Modulator bias is taken directly from 1/2 of
> the 6AL5 bias rectifier.  The power trannie has the bias windings.
>
> Now to this rig............... It has the early power trannie without
> bias windings and  the modulator bias is wired as shown in  the "early"
> schematic.  It also has the 6AL5 and 12AU7 keyer deck.  The keyer is
> wired as shown in the "later" version but the 6AL5 is only used to
> provide voltage to the keyer.  Voltage for the cathodes of the 6AL5 is
> being picked off the plate winding of the 6AX5 and dropped through
> resistors to achieve the correct voltage for the circuit.
>
> So this rig looks like a later version but has the "early" transformer
> and a bias rectifier circuit unlike the "later" schematic.
>
> (I'm trying to be as clear as I can)  Hi Hi
>
> Either this is a later rig that has had the power trannie replaced with
> an "early" one and modified enough to gain operating voltage for the
> keyer...................OR, is it possible it's another version that
> I'm just not aware of?
>
> The rig will operate as it sits.  But I'm curious if anyone has seen
> what I've described and if so, would happen to have a schematic for it.
>
> I have a spare power trannie with the bias winding and could sub it and
> re-wire the bias rectifier and modulator bias per the later version
> schematic.    But I don't wish to do that if it's possible what I'm
> seeing is a third version.
>
> Anyone have any ideas or comments?
>
> Much appreciated.
>
> 73 de W4MIL
> Chuck
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