|[AMRadio] Tube ID|
ranchorobbo at gmail.com
Sun Feb 23 08:02:40 EST 2014
I think I'd measure the voltage at that tube's socket and stick a
known VR tube in there for that voltage and see what happens. But, my
knowledge is somewhat limited. I guess a VR tube with neon in it
would glow orange. 5651 and 5651A are miniature neon VR tubes I
think. 90C1 or 85A2?
On Sat, Feb 22, 2014 at 4:42 PM, Jim Wilhite <w5jo at brightok.net> wrote:
> I have a voltage regulator that is not marked except for the following: 816B997. In circuit it glows bright orange.
> My memory fails me at the moment, is it an OA2? It is a 7 pin miniature tube.
> The OB2 glows a purple color but I forget what color the OA2 glows, or for that matter what this tube may be if not an OA2.
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Archives: http://mailman.qth.net/pipermail/amradio/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
More information about the AMRadio mailing list
This page last updated 21 Feb 2018.