[Boatanchors] T-195 spare parts

[James Duffer]

Is the servo motor on the PA tuning working?, If so then you can verify by 
substituting the PA motor for the variable inductor motor.  Let us know what 
kind of progress you are making on this autotune transmitter.

73, Jim   de wd4air


>From: "James Duffer" <dufferjames at hotmail.com>
>To: dsmaples at comcast.net, boatanchors at mailman.qth.net
>Subject: RE: [Boatanchors] T-195 spare parts
>Date: Thu, 27 Jul 2006 07:23:39 -0500
>
>I vaguely remember that placing a dc (small value) on the input to the 
>chopper of the servo amp circuit would activate the servo motor, reversing 
>the polarity would cause the motor rotate in the opposite direction.  I 
>also remember on the older dynatomotors/alternators the 400 Hz was created 
>using a permantent magnet in the alternator, you could if you were careless 
>measuring around the windings of the servo, there was one winding which had 
>DC (B plus that was supplied to the servo amp output tube) and if you 
>shorted with your probe to the other winding which was the output of the 
>dynamotor/alternator you would inadvertently de-magnetize the magnet and 
>the 400 HZ output from the LV dynamotor would be very low making the servo 
>system inoperative.
>
>I had 14 T-195's assigned to me while stationed in Lenggries, Germany (they 
>were part of the AN\GRC-46.
>
>
>>From: "Dave Maples" <dsmaples at comcast.net>
>>To: "boatanchor" <boatanchors at mailman.qth.net>
>>Subject: [Boatanchors] T-195 spare parts
>>Date: Wed, 26 Jul 2006 20:55:38 -0400
>>
>>All: I am now digging into the T-195 I picked up a couple of months ago.
>>Apparently I have a defective tuning motor in the roller inductor area 
>>(this
>>is the 400 Hz motor).  I'm not absolutely certain this is defective, but 
>>on
>>the assumption that it is, I have no idea where to find a replacement any
>>more (Fair Radio, back in the junk area?)  Any suggestions?
>>
>>Dave WB4FUR
>>
>>
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>
>
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