More about this common type of failure:
I had one go off in a HP3457A. Took out 16 A line breaker, created a jet of hot tar out of the back of the unit in the process. Scary. The filter is still sitting on my terrace because I don¡¯t want to touch it again :-). Replaced with new item in all my 3457As, FN9222-3-06; do NOT go for NOS.
The rivets with which these are mounted are a major pain; I finally gnawed away the outside plastic of the old filter and snapped off the now protruding rivets using a ¡°Rabitzzange¡± (pincers, but not your garden variety ones).
Gr¨¹?e, Carsten
toggle quoted message
Show quoted text
On Apr 1, 2019, at 15:46, NigelP <nigel-pritchard@...> wrote:
Had a disaster with the mains socket/filter/voltage selector on my 8657B yesterday. Wasn't even switched on and smoke suddenly poured out of the back; I initially assumed it was an electrolytic but quickly discovered that the filter components in the power socket complex had gone S/C L-N and taken out a 5A fuse in the UK mains plug (thank goodness we have fuses in the plugs in the UK). The unit was off but connected to the live bench system and of course the filter is directly connected 100% of the time that power is applied to the end of the mains lead.
So, I can buy another socket here in the UK but just in case anyone has a box of these laying around looking for a home :-), I 'm looking for a Shaffner FN370-2 Filtered Power Entry module...... can anybody (in the UK) oblige, preferably NOS rather than a parted out device with questionable lifetime??
