I also put a small wire wound resistor in series with the lamps in my
Hercules II, to reduce the brightness and to prolong their life. So
far no failure, but avoid replacing the Herc lamps with anything that
draws more current ... If you do, you may have other problems, with
the 9420 power supply. The dial lamps run from its low power 15v rail,
not from the main 13v rail(s) that run the amp. It will not support
higher current lamps.
John G3JAG
On 24-May-99 Michael O. Hyder wrote:
>
> Put a 33 ohm resistor in series with the bulb. It will GREATLY
> improve bulb
> life and not significantly reduce the illumination.
>
> Mike
>
> ----- Original Message -----
> From: Steve Ellington <n4lq@iglou.com>
> To: <KMerzel@aol.com>
> Cc: <tentec@contesting.com>
> Sent: Monday, May 24, 1999 4:03 PM
> Subject: Re: [TenTec] 238 Tuner
>
>
>>
>>
>> The RS jobs are nice and bright but don't last long. What a pain!
>> I'm
>> ready to convert to LEDs or something.
>>
>>
>> On Mon, 24 May 1999 KMerzel@aol.com wrote:
>>
>> >
>> > I have a 238 Tuner that is in need of a replacement bulb. The
>> > Manuel
>> > specifies an 1892 14.4v @120 ma. The closest I could find at RS
>> > was an
> 1815
>> > 14 v @ 200 ma. Is there really any difference? Thanks.
>> > 73 Ken
>> >
>> > --
>> > FAQ on WWW:
>> > http://www.contesting.com/tentecfaq.htm
>> > Submissions: tentec@contesting.com
>> > Administrative requests: tentec-REQUEST@contesting.com
>> > Problems: owner-tentec@contesting.com
>> > Search:
>> > http://www.contesting.com/km9p/search.htm
>> >
>> >
>>
>> Steve Ellington N4LQ
>> N4LQ@IGLOU.COM
>>
>>
>> --
>> FAQ on WWW: http://www.contesting.com/tentecfaq.htm
>> Submissions: tentec@contesting.com
>> Administrative requests: tentec-REQUEST@contesting.com
>> Problems: owner-tentec@contesting.com
>> Search:
>> http://www.contesting.com/km9p/search.htm
>>
>
>
> --
> FAQ on WWW: http://www.contesting.com/tentecfaq.htm
> Submissions: tentec@contesting.com
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> Search: http://www.contesting.com/km9p/search.htm
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E-Mail: patents@dx0man.prestel.co.uk
To: <tentec@contesting.com>
Date: 25-May-99
Time: 08:39:51
COPYRIGHT means don't copy .....
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