Bob,
Thanks for the information. Unfortunately the B went to bed for the
winter last night. The C is still out, but as a 69, it only has a
switch. Even that is possible. What I was thinking of doing was to get
one of the local engineers to figure out the value of a dropping
resister so that if you accidentally turned the rheostat up full you
would only get 10 volts. Once that value is determined a resister could
be put in the C's switch circuit to keep the lamps from burning out.
Thanks for doing the experiment. Your experiment has solved a problem
that has been bothering MG owners for a long time.
Jack
>----------
>From: mgbob@juno.com[SMTP:mgbob@juno.com]
>Sent: Thursday, November 20, 1997 6:46 PM
>To: Feldman, Jack (Jack)
>Cc: mgbob@juno.com; mgs@autox.team.net
>Subject: Re: MGB Dashboard lights
>
> They won't burn out immediately, if that's a concern; at least they
>didn't when I turned them on. They seem to be able to take the
>overvoltage long enough for you to realise that you don't want them that
>bright. When you turn them down to a reasonable level, they're probably
>getting less than 10v anyway. Since they were rated for 1000 hours, if
>you get 1/10 of that you still have 100 hours, and that's more than 3000
>miles at 30 mph.
> As to the list of things to take in your MGB spares kit for a 3000 mi
>trip--guess we don't need to take spare instrument lightbulbs...
>Bob
>
>On Thu, 20 Nov 1997 08:05:43 -0600 "Feldman, Jack (Jack)"
><jack@lucent.com> writes:
>>Bob,
>>Your message implies that you have turned to the rheostat to the full
>>14.4 volts without burning out the light bulbs. Can they really take
>>the
>>over voltage, or will they burn out immediately if one is not careful?
>>
>>Jack
>>
>
>
|