[Heathkit] SB-630 information 2nd request - problem discovered!
jack m
oldvette at hotmail.com
Tue Dec 7 13:50:59 EST 2010
I received from page 30 on and a schematic from list members - these had had the ops description, but unfortunately, no parts list. Now I need the parts list.
>From the info and schematic I got, I discovered that a neon light lead (in the relay circuit) was broken off at the base. No chance for micro surgery on this. I replaced the light with a junk box spare, but still no work. I then discovered on the schematic that there is a "color dot" notation for the bulb, which the broken one had, but none of my ten spare NE-2's has a color dot.
So I figure this is NOT an NE-2 in the SB-630. With the NE-2, the ID/buzzer just goes on and stays there, but can be released with a plastic tool prying up on the relay. Without the NE-2, the reset button will pulse the relay on/off.
Upon magnified inspection, I see a "GE-A6" cast into the broken bulb's base, whereas I see a "GE" and "2" on my ten neon spares. Both look the same in appearance. That's why I need the parts list. I think I remember that an NE-2 will illuminate one way and not the other when DC is applied, but these are usually used in AC service. When connected, the NE-2 has one quick "wink" on power-up, but that's it. The one in the circuit is obviously for a DC only circuit. Can anyone shed light on this part and/or circuit application?
Just a copy of the parts list would be very helpful, as well as any insight to the neon bulb used in the relay circuit. Any pages from 29 on back would also be appreciated. Many thanks to those who have helped so far.
Jack W3RU
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