Electronics > Repair
Repair : HP 3245A precision DC/AC source
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Dr. Frank:

--- Quote from: dom0 on December 09, 2015, 02:29:23 pm ---
--- Quote from: deadlylover on December 02, 2015, 06:38:18 pm ---those Schaffner made in Switzerland ones are cursed.

--- End quote ---

To be fair it only affects the older ones with the RIFA MP2? caps. New Schaffner filters are as good quality as it gets.

--- End quote ---

Do you, or anybody else know, from which datecode on these Schaffner filters have been improved?

Frank
VK5RC:
Re Schaffners,  some other blogg postees have commented that it seems to be a problem of
-old equipment (old IEC filter)
- humid environment
- infrequent use (build up moisture in cap)
- then switch on failure- quite quickly
Occurrence in NOS treated in a similar manner.
Looking for a replacement for some older HP gear,  Schaffner seems to be one of the better brands.  I plan to think of them like electrolytics,  need an eye and not infrequent replacement.
alanambrose:
Ah FYI the DCV cal sequence attached from page 4-6 of the cal manual. Answers on a postcard...
alanambrose:
Errr...it doesn't want to play - try this...

TiN:
This is what I had (run manually):

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