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

[Jack Hart]

Replace it with an LED....

 

 

 

From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Duncan Brown
Sent: Saturday, December 14, 2013 10:27 AM
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] ST-6 Receive lamp failure - looking for a
replacement source

 

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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