Better to find a friend with a Sprague T0-6 or earlier TO-?
73 Dave W7VM
-----Original Message-----
From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Boye
Christensen
Sent: Monday, May 11, 2015 12:47 PM
To: qrv@kd4e.com; amps@contesting.com
Subject: [Bulk] Re: [Amps] Date Code Samsung 120 MFD 450 Volt Capacitors?
Hi
If they are old
make an EXT. circuit with soft start to test each, e.g a diode with 100 kOhm
in series.
Use a DMM to measure time /voltage and calculate capacitance.
230 VAC to a diode gives app. 325 VDC, take care of safety
73 Boye OZ7C
Den 11/05/2015 kl. 18:59 skrev qrv@kd4e.com:
> OK, sounds good.
>
> I'm still trying to sort the alphanumeric label EIAJD0160:
>
> EIA = military contract?
> J = ??
> D = ??
> 01 = 2001?
> 60 = ??
>
> If 2001 they are already 14 years old - perhaps not a good choice for
> this amp?
>
> Thanks - David KD4E
>
>
>> Or, if it a voltage doubler circuit, two more caps.
>>
>> Gerald K5GW
>>
>>
>> In a message dated 5/11/2015 10:39:27 A.M. Central Daylight Time,
>> amps@contesting.com writes:
>>
>> Just put an additional 450 volt capacitor in series to increase the
>> safety factor. Glen, K9STH
>>
>> Website: http://k9sth.net
>> From: "qrv@kd4e.com" <qrv@kd4e.com>
>> To: "amps@contesting.com" <amps@contesting.com>
>> Sent: Monday, May 11, 2015 8:40 AM
>> Subject: [Amps] Date Code Samsung 120 MFD 450 Volt Capacitors?
>>
>> Would these caps be safe to use in an amp PS?
>>
>> Samsung 120 mfd at 450 volt 105c
>>
>> Would this # EIAJD0160 reveal the date code?
>>
>> Or best not to mess with anything below 500v?
>>
>> The Clipperton L manual says 100uF @ 500v, the ones
>> in there are 125uF @ 500v.
>>
>>
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>>
>
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