Replace it with a 12 Ohm 1/2 W resistor, It will work.
>>>Luciano
>>>www.timeok.it
>>>
>>>
>>>From "time-nuts" time-nuts-boun...@febo.com
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>>>Date Mon,
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To time-nuts@febo.com
Cc
Date Mon, 20 Feb 2017 19:25:37 -0500 (EST)
Subject [time-nuts] HP5065A Rubidium questions: some progress
Hi All,
Thank you all for the very helpful suggestions!
I will try to reply to you all in this one post.
I opened
-nuts-boun...@febo.com
>To time-nuts@febo.com
>Cc
>Date Mon, 20 Feb 2017 19:25:37 -0500 (EST)
>Subject [time-nuts] HP5065A Rubidium questions: some progress
>Hi All,
>
>
>Thank you all for the very helpful suggestions!
>
>
>I will try to
s@febo.com
Cc
Date Mon, 20 Feb 2017 19:25:37 -0500 (EST)
Subject [time-nuts] HP5065A Rubidium questions: some progress
Hi All,
Thank you all for the very helpful suggestions!
I will try to reply to you all in this one post.
I opened up the A12 assembly and was happy to fin
That actually sounds like good news.
The lamp will light and its a purple orange. Not sure how safe it is to
look at. Hmm but I have carefully.
If you have a scope the oscillator runs at 150 MHz +/-20 MHz its not fussy.
You only need to get the scope probe close to see the RF.
But likely its not ru
On 2/20/2017 4:25 PM, David Scott Coburn wrote:
One odd bit is that the resistor in the transistor emitter leg
measures about 350 ohms (this is R3 in my schematic). The schematic
says it should be 10 ohms. This resistor is on solder posts, so it
looks like a 'selected at assembly' item. C
Scott,
The resistor should be 12 Ohms nominal, I'd try installing a 12 Ohm and
see what happens.
The lamp should light within 10 seconds or so of applying power.
If you have a spectrum analyzer you can place a loose wire close to the
lamp assy and see the approx 120Mhz signal if it's oscillatin
Hi All,
Thank you all for the very helpful suggestions!
I will try to reply to you all in this one post.
I opened up the A12 assembly and was happy to find that the lamp,
windows, and reflector all appear to be in good physical condition.
There is some very light corrosion on the aluminum
