[Test-Equipment] HP 200 CD

[chearn at widomaker.com]

Richard,

The HP 200CD was made for many decades, with many variations as the  
circuit design evolved over time.  For S/Nsprefixed 605, C12 is 100  
microfd @ 100wvdc, C13 A,B, C are 10 microfd/sec at 450 wvdc, C14 is  
40 microfd. @ 450 wvdc.

These values may be different for other prefixes!  If you have a  
different S/N, let me know and I'll check my docs.  I have about file  
drawers of HP manuals I glombed on to when Hp went to microfilm in  
late 70s.

                                                Regards,Chase/K4AFW
>
> ----- Original Message -----
> From: <kf9nz at juno.com>
> To: <test-equipment at mailman.qth.net>
> Sent: Saturday, January 31, 2009 12:00 PM
> Subject: [Test-Equipment] HP 200 CD
>
>
>>        A 200CD followed me home recently after being
>> abandoned.  It
>> lights up and does produce tone, although I only had it on
>> for a few
>> seconds to see if there was any smoke leaking out.   Can
>> anyone tell me
>> the value of the three electrolytic caps C12-C13-C14 in
>> the P.S.?
>> Also, what is a 5AR4 tube?  Obviously a rectifier, but I
>> have never heard
>> of it.  Is there any common type replacement?    I suppose
>> a couple of
>> silicon diodes would do the job if the 5AR4 quit anyhow,
>> but I'd just
>> like to know.
>>
>> Frankf9nz
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