Emanuele Girlando blog
Electronics repair & tweaking
Thursday, October 26, 2023
My HP 6632 Power Supply has got crazy (SOLVED)
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My 6632A s/n 3145A-06821 Symptoms: power on is ok; no self test errors on the display; VSETing from the front panel to values greater then...
Friday, April 28, 2023
Graetz Joker-834 portable radio repair
What a challenge!
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This radio is as old as me: born in 1959. Initial conditions Found it in very tough conditions: dirty, smelly, not working (dead). Inside t...
Sunday, February 26, 2023
Hard Disk catastrophic failure
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Have you ever seen inside an hard disk that suffered a very strong catastrophic failure? I don't: I've never seen something like thi...
Monday, February 20, 2023
Telefunken Italia - model "Mignonette MF" - 1a Serie
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Telefunken Italia - model " Mignonette MF " - 1a Serie JAN 2023 - restoration notes. I don't want to bore you with informatio...
Friday, January 14, 2022
Adventest R3361B Spectrum Analyzer vertical instability fix (failed joint between input LPF and coupler)
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After full recapping of the PSU and CRT modules of my R3361B the instrument began showing a pronounced vertical instability: looking at the ...
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