01-12-2022, 04:16 PM
That's a result 
Don't worry about leaving the 100k resistors in circuit (what's left of them!). The current supplied by them is not critical, providing it meets a certain minimum value.
Regarding your 470k, it's fine to leave it in place, but do be aware that it might end up suffering the same fate eventually.
In my experience, carbon film resistors fail quickest, metal film are better, and metal oxide are the best.
This subject comes up now and again - here's one of my old posts on the subject: http://golbornevintageradio.co.uk/forum/...8#pid46468
If carbon film is all you have, copying what the manufacturer did (putting several in series) might be worth considering, assuming it's physically possible, etc...
Don't worry about leaving the 100k resistors in circuit (what's left of them!). The current supplied by them is not critical, providing it meets a certain minimum value.
Regarding your 470k, it's fine to leave it in place, but do be aware that it might end up suffering the same fate eventually.
In my experience, carbon film resistors fail quickest, metal film are better, and metal oxide are the best.
This subject comes up now and again - here's one of my old posts on the subject: http://golbornevintageradio.co.uk/forum/...8#pid46468
If carbon film is all you have, copying what the manufacturer did (putting several in series) might be worth considering, assuming it's physically possible, etc...
