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#1 |
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diyAudio Member
Join Date: Sep 2003
Location: Paris
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I was given an old IO-12 oscilloscope by Heathkit. It seemed to work but :
- The crazy thing runs at 400 to 1500 VDC (tube oscilloscope) and comes... with a two prongs main plug. Checking inside, the enclosure isn't connected to anything anywhere either. - They used a rotary on-off switch integrated onto a potentiometer as power switch, to switch thus 220VAC. After powering the unit a few times, it started to create crazy sparks at start up to finally end up in fire (tripping my home fuses of course). What should I do ? - Strip it for parts ? It has a nice transformer, plenty of switches, some good tubes, etc.. - Try to make it safe ? I'd have to replace the power cord, find a way to earth it, replace the power switch, replace some old electrolytic caps. - Sell it on ebay for spares ?
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Ben. |
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#2 |
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diyAudio Member
Join Date: Sep 2004
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Making any Heathkit scope safe is a chore. A lot had bum transformers, leaky caps and junk switches.
IMO, fleabay it. Cheers! |
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#3 |
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diyAudio Member
Join Date: Nov 2004
Location: NCR
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I'd say sell it on ebay, inform the buyers of its problems and let someone else have the fun of restoring it. I used to have one, and aside from a horizontal amplitude problem (I didn't know anything at the time) it was OK. Certainly didn't have any sparks and it well assembled. Looked great too. too bad I trashed it. I hate myself for that.
Sell it on ebay. or should I say "fleabay" like geek! lol
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