[GreenKeys] ST-6 Receive lamp failure - looking for a replacement source

[Duncan Brown]

Russ,

The "Receive" and "STBY" lamp circuits look the same, so measure the 
voltage across the STBY lamp (when  its on).  They are probably running 
the lamp at about 80% of its rated voltage to make it last longer (since 
it is soldered in).  If you measure a bout 10V, then it is probably a 
12V bulb. Then measure the voltage across the lamp's series resistor to 
get the lamp's current.  This should give you some idea of what kind of 
lamp HAL used in the circuit.

Good luck & have fun,

Duncan
K2OEQ



On 13-Dec-13 12:05, Wa3frp wrote:
> My incandescent receive lamp on my ST-6 has failed. (they don't make 
> stuff like they used to. This lamp was only in service since 1970)
> Checking the HAL manual, as I built this as a HAL kit, I see that it 
> is only called out as incandescent lamp.
> Bill Henry, if you see this, do you remember any specs on these 
> lamps?  I'd like to replace it and buy a spare for the companion 
> Standby lamp that has still not failed (must be on the air too much).
> Otherwise, is anyone in a position to part-out a lamp from a 
> non-working ST-6?
> Thanks and 73
> Russ - WA3FRP
> wa3frp at aol.com
>
>
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