The only option is this thing on ebay(see screenshot bellow), but it looks like I would pay for shipping as much as I paid for the entire meter.
I measured the old spark gap and I'm getting 1kohm across it, now I'm thinking about putting it back inside if I don't find any replacement.
A spark gap should measure infinite ohms. At 1k ohms, it will definitely cause some funny readings. You can measure E2 "in circuit" and verify that it is infinite ohms (with your Fluke 87).
I cleaned the char marks on the spark gap with a small file and I am now reading infinite resistance on it's terminals.
Actually if you think about it, if they ditched the spark gap in a later model and kept only varistors they might of figured there is enough protection provided with just a varistor..
Are these resistors from link with metal films are used like fusible ?
Can i replace R1 by this Metal film resistor ?
https://www.aliexpress.com/item/20pcs-2W-Metal-film-resistor-1-1R-1M-2-2R-4-7R-10R-22R-47R-100R/32847047012.html
Thank's for prompt response.
It's possible to replace this fusible resistor by ceramic fuse ?
Thank's for prompt response.
It's possible to replace this fusible resistor by ceramic fuse ?NO , get the required 1 K FUSIBLE RESISTOR and do a proper repair.
Your safety and anyone else that may use it may depend on it , don't cut corners here.
I miss my old 77, the one that you got is a beauty, looks almost new.
I would love to get an old 87 or 77 again, what was the price for yours? Unfortunately, I lost my 77 a few years ago, as I mentioned in this post https://www.eevblog.com/forum/chat/classic-analog-moving-coil-multimeter-which-are-considered-best-ones/msg1449434/#msg1449434 but, I loved the rugged boot and crisp characters.
I miss my old 77, the one that you got is a beauty, looks almost new.
I would love to get an old 87 or 77 again, what was the price for yours? Unfortunately, I lost my 77 a few years ago, as I mentioned in this post https://www.eevblog.com/forum/chat/classic-analog-moving-coil-multimeter-which-are-considered-best-ones/msg1449434/#msg1449434 but, I loved the rugged boot and crisp characters.We can't measure capacitors with Fluke 77.