[Boatanchors] RANGER I questions

[cemilton at aol.com]

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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