[Milsurplus] Oscillator schematic for T368

WA5CAB at cs.com WA5CAB at cs.com
Mon Nov 2 21:56:14 EST 2009


John,

What model of the T-368 do you have?  Or do you just have the VFO?

According to Figure 97 (Basic Model RF Deck), you have the terminal pin 
assignments of P802 somewhat mixed up.  

A  +150 V Reg (screens and plates of both tubes)
B  6.3 VAC
C  6.3 VAC
D  Chassis (Ground)
E,F  Oven Heater (no connection shown on the J105 side in the basic model)
H  Chassis (Ground)

If you only have the VFO and are trying to use it with some other set, I 
guess I could extract that portion of the schematic and send it to you as a 
.TIF.

In a message dated 11/2/2009 7:44:05 PM Central Standard Time, 
w5jv at hotmail.com writes: 
> I'm looking for a clear schematic to the T368 VFO, AKA master 
> oscillatorwhich holds V801 and V802.  The print that I have has faded traces and 
> Ican't tell for sure whether some lines are connected or not.  If anyone hassame 
> and can email I would appreciate the courtesy.  Alternative, I canemail 
> what I have and someone with a clear schematic could clear up theversion I 
> have for me.
> I'm also trying to identify the control line values.  P802 is a seven pin 
> plugwhich I think is the blue din type instrument plug you commonly see.  
> Itplugs into J105.  Anyway, according to the schematic I have pins B &C 
> arethe filaments, pin A goes to the control screen grids, D &H are tied 
> together going to the cathode circuit and pins E &F are tied together going to the 
> plate circuit.  
> Can anyone tell me what the voltage values should be on these?
> TIA, John W5JV                          
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480


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