[HAM] Baldwin/Leslie BL-1

Dan Richardson - Yahoo yahoolist at nottooloud.com
Thu May 3 19:12:09 CDT 2007


Further adventures of the man who is a danger to himself and others.

I put AC across 1 and 6, brought it up on a variac,
and got no particular current draw. Spins fast.
Tubes come up and it passes audio directed to pin 3.
 From Pin 5, the motor relay solenoid,
I get 40 volts AC to one AC leg, 70 to the other,
and 20 volts DC to ground.
I walked the pins with successively smaller resistors, down
to 30 ohms, but haven't managed to make the relay switch.
I haven't tried a direct short to anything yet.

Does anybody know what I need to do here?

Dan

Dan Richardson - Yahoo wrote:
>> I'm looking for the cable pinouts
>> for a Baldwin Leslie BL-1.
> 
> OK, so I opened it up.
> It's actually pretty sweet. Compact and light weight.
> Double 6L6 and a 12AX7, lovely old 12" and a wood rotor.
> Single speed fast/off.
> 
> Pin 1 goes to the fuse.
> Pin 2 goes no place.
> Pin 3 goes to the gain trim pot.
> Pin 4 goes to the chassis.
> Pin 5 goes to the motor relay solenoid.
> Pin 6 goes to the power transformer.
> 
> So, I'm thinking:
> 1 AC hot
> 2 video input
> 3 unbalanced input
> 4 AC and signal ground
> 5 switch, but to what? Hot? Neutral? Ground?
> 6 AC neutral
> 
> Does that seem right?
> I'll stick a meter on pin 5 after hotting it up,
> maybe that will tell me something.
> 
> Dan


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